American Megatrends | MegaRAID Express 500 | Technical information | American Megatrends MegaRAID Express 500 Technical information

MegaRAID® RAID Controller
Configuration Software Guide
MAN-MR-GENSW
7/20/00
© Copyright 2001 LSI Logic Corporation
All rights reserved.
LSI Logic Corporation
6145-D Northbelt Parkway
Norcross, GA 30071
This publication contains proprietary information which is protected by copyright. No part of this publication can be
reproduced, transcribed, stored in a retrieval system, translated into any language or computer language, or transmitted in
any form whatsoever without the prior written consent of the publisher, LSI Logic Corporation acknowledges the
following trademarks:
Intel is a registered trademark of Intel Corporation.
MS-DOS and Microsoft are registered trademarks of Microsoft Corporation. Microsoft Windows and Windows NT are
trademarks of Microsoft Corporation.
SCO, UnixWare, and Unix are registered trademarks of the Santa Cruz Operation. Inc.
Novell NetWare is a registered trademark of Novell Corporation.
IBM, AT, VGA, and OS/2 are registered trademarks and XT and CGA are trademarks of International Business Machines
Corporation.
Revision History
8/15/97
10/21/97
1/16/98
4/8/98
5/12/98
7/8/98
7/24/98
8/7/98
2/4/99
5/10/99
5/13/99
8/20/99
7/20/00
ii
Initial release.
Updated MegaRAID BIOS description.
Merged FlexRAID and Power Console chapters.
Replaced Power Console with Power Console Plus.
Corrected an error in Chapter 4 Power Console Plus.
Updated screen shots in this manual.
Removed references to Solaris, NextStep, and Banyan drivers.
Added new Enclosure Management in Power Console Plus.
Converted to generic MegaRAID Software Guide.
Revised to include Series 467 MegaRAID Explorer 1500.
Updated Power Console Plus chapter.
Changed defaults (64 MB stripe size, Direct I/O, Normal Read).
Revised material throughout manual and added WebBIOS chapter.
Table of Contents
1
Overview ...................................................1
In this Manual................................................................... 2
2
MegaRAID Configuration Utility.............5
Starting MegaRAID Configuration Utility....................... 5
MegaRAID Configuration Utility Menu Tree.................. 7
MegaRAID Configuration Utility Menu Tree for
Ultra 160M Cards............................................................. 8
MegaRAID Configuration On Disk ................................. 9
Configuration Utility Configure Menu............................. 9
Configuration Utility Initialize Menu............................. 10
Configuration Utility Objects Menu............................... 11
Configuration Utility Format Menu ............................... 14
Configuration Utility Rebuild Menu .............................. 14
Configuration Utility Check Consistency Menu ............ 15
Configuration Utility Select Adapter Menu ................... 16
Disable BIOS Menu ....................................................... 16
Configuring Arrays and Logical Drives ......................... 16
Choosing the Configuration Method .............................. 17
Designating Drives as Hot Spares .................................. 18
Using Easy Configuration .............................................. 19
Using New Configuration............................................... 23
Using View/Add Configuration...................................... 26
Initializing Logical Drives.............................................. 29
Using Logical Drives in the Operating System .............. 30
Formatting Physical Drives ............................................ 31
Rebuilding Failed Disk Drives ....................................... 32
Using a Pre-loaded SCSI Drive “As-is” ......................... 33
Exiting MegaRAID Configuration Utility...................... 33
3
WebBIOS Configuration Utility .............35
Starting the MegaRAID WebBIOS Utility on the Host Computer…36
WebBIOS Toolbar Icons ................................................ 38
Adapter Properties.......................................................... 39
Scan Devices .................................................................. 40
SCSI Channel Properties ................................................ 40
Logical Drives ................................................................ 42
Physical Drives............................................................... 45
Configuration Wizard..................................................... 46
Adapter Selection ........................................................... 51
Physical View\Logical View.......................................... 52
iii
Table of Contents, Continued
4
MegaRAID Manager ...............................55
Overview ........................................................................ 55
Starting MegaRAID Manager ........................................ 55
MegaRAID Manager Menu Tree ................................... 57
MegaRAID Manager Configure Menu........................... 58
MegaRAID Manager Initialize Menu............................. 58
MegaRAID Manager Objects Menu............................... 59
MegaRAID Manager Format Menu ............................... 62
MegaRAID Manager Rebuild Menu .............................. 62
MegaRAID Manager Check Consistency Menu ............ 63
MegaRAID Manager Advanced Menu........................... 64
MegaRAID Manager Select Adapter Menu ................... 65
Configuring Arrays and Logical Drives ......................... 65
Choosing the Configuration Method .............................. 66
Designating Drives as Hot Spares .................................. 67
Using Auto Configuration .............................................. 68
Using Easy Configuration .............................................. 69
Using New Configuration............................................... 73
Using View/Add Configuration...................................... 76
Initializing Logical Drives.............................................. 79
Using Logical Drives in the Operating System .............. 80
Formatting Physical Drives ............................................ 81
Rebuilding Failed Disk Drives ....................................... 83
Exiting MegaRAID Manager ......................................... 84
5
Installing Power Console Plus .............85
Installing on a Windows NT V4.x Server and Workstation87
Sample Power Console Plus Network Layout................ 93
Installing an LSI Logic SNMP Agent ............................ 94
MegaRAID Service Monitor .......................................... 95
Installing and Registering Power Console Plus Components
in a NetWare Server 4.x ................................................. 96
De-registering and Re-registering under Power Console Plus 98
6
Running Power Console Plus ...............99
User Interface Restrictions ........................................... 100
Power Console Plus Toolbox Icons.............................. 101
Power Console Plus Menus .......................................... 105
Configuration Menu ..................................................... 105
Adapter Menu............................................................... 109
Physical Drive Menu .................................................... 114
Logical Drive Menu ..................................................... 116
Progress Menu.............................................................. 119
Securing Power Console Plus under Windows NT ...... 120
7
Configuring Arrays and Logical Drives121
Step 1 Start Power Console Plus .................................. 121
Step 2 Choose an Adapter ............................................ 122
Step 3 Run the Wizard.................................................. 123
Step 4 Save Configuration and Initialize ...................... 128
iv
Table of Contents, Continued
8
Assigning Hot Spares..........................129
Global Hot Spares ........................................................ 129
Reclaiming Hot Spares While Running the Wizard ..... 129
Reclaiming Hot Spares During Normal Operation....... 129
9
Virtual Sizing and Online Capacity Expansion…131
Location and Enabling.................................................. 131
Theory of Operation ..................................................... 131
MegaRAID Drive Characteristics ................................ 132
Deleting Logical Drives ............................................... 132
Adding Capacity under Windows NT 3.5x, 4.x and
Windows 2000.............................................................. 133
Adding Capacity under NetWare 3.12 and 4.x............. 135
A
MegaRAID Service Monitor .................137
MegaRAID Service Monitor ........................................ 138
Event Types.................................................................. 139
Index ................................................................151
v
Preface
MegaRAID supports Ultra, Ultra2, Wide, and Ultra160M SCSI channels with data
transfer rates up to 160 MB/s. This manual describes the software that is shipped with the
MegaRAID.
Limited Warranty
The buyer agrees if this product proves to be defective, that LSI Logic Corporation is obligated only
to repair or replace this product at LSI Logic Corporation’s discretion according to the terms and
conditions of the warranty registration card that accompanies this product. LSI Logic Corporation
shall not be liable in tort or contract for any loss or damage, direct, incidental or consequential
resulting from the use of this product. Please see the Warranty Registration Card shipped with this
product for full warranty details.
Limitations of Liability LSI Logic Corporation shall in no event be held liable for any loss, expenses, or damages of any
kind whatsoever, whether direct, indirect, incidental, or consequential (whether arising from the
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provided by LSI Logic Corporation to Licensee.
Technical Support LSI Logic provides technical support for LSI Logic products purchased directly
from LSI Logic or from an LSI Logic-authorized reseller only.
If…
You purchased this product from LSI Logic or
from a certified LSI Logic reseller,
This LSI Logic product was installed as part
of a system manufactured by a company other
than LSI Logic or you purchased an LSI
Logic product from an unauthorized reseller,
Web Site
then…
Call LSI Logic Technical Support at 678-7281250. Please be prepared to specify the serial
number of the product.
Call the technical support department of the
computer manufacturer or the unauthorized
reseller. LSI Logic does not provide direct
technical support in this case.
We invite you to access our web site at:
http://www.lsillogic.com.
Cont’d
vi
Preface, Continued
Disclaimer
This manual describes the operation of the LSI Logic Corporation MegaRAID Disk
Array Controller. Although efforts have been made to assure the accuracy of the
information contained here, LSI Logic Corporation expressly disclaims liability for any
error in this information, and for damages, whether direct, indirect, special, exemplary,
consequential or otherwise, that may result from such error, including but not limited to
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contained therein (even if LSI Logic Corporation has been advised of the possibility of
such damages). Any questions or comments regarding this document or its contents
should be addressed to LSI Logic Corporation from the address shown on the cover.
LSI Logic Corporation provides this publication “as is” without warranty of any kind,
either expressed or implied, including, but not limited to, the implied warranties of
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This publication could include technical inaccuracies or typographical errors. Changes
are periodically made to the information herein; these changes will be incorporated in
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Requests for technical information about LSI Logic Corporation products should be made
to your LSI Logic Corporation authorized reseller or marketing representative.
vii
viii
1
Overview
The basic MegaRAID documentation is contained in three manuals:
•
•
•
the MegaRAID Hardware Guide for your MegaRAID board
the MegaRAID Operating System Drivers Guide
the MegaRAID Configuration Software Guide
MegaRAID Configuration Software Guide This manual provides information about MegaRAID
software utility programs. You will not need this manual until after you have
planned your RAID system and have installed the MegaRAID controller.
RAID system planning, installation, and configuration information is provided
in the MegaRAID hardware guide for your MegaRAID board. Read the
MegaRAID hardware guide before you read the MegaRAID Configuration
Software Guide.
MegaRAID Hardware Guide Each MegaRAID board has a MegaRAID hardware guide that
contains information about installing the MegaRAID controller. It also contains
general introductory information about RAID and RAID system planning and
configuration information.
You must read the MegaRAID Hardware Guide before you read the MegaRAID
Configuration Software Guide.
MegaRAID Operating System Drivers Guide This manual provides all the information you will
need to install the appropriate operating system software drivers.
Read this manual after you have installed the MegaRAID card, planned the
RAID system, and configured the system using the MegaRAID software
configuration utilities described in the MegaRAID Configuration Software
Guide
Chapter 1 Overview
1
In this Manual
This manual is organized as follows:
Chapter
1
2
3
4
5
6
7
8
9
Note:
Title
Overview
MegaRAID BIOS Configuration Utility
WebBIOS Configuration Utility
MegaRAID Manager
Installing Power Console Plus
Running Power Console Plus
Configuring Arrays and Logical Drives
Assigning Hot Spares
Virtual Sizing and Online Capacity Expansion
Turn to
page 1
page 5
page 35
page 55
page 85
page 99
page 121
page 129
page 131
Some of the features and procedures in this manual apply only to
boards that support Ultra 160M, and 40 logical drives. This will be
noted in the description of the feature or procedure. The Ultra 160M
boards are:
•
•
•
Enterprise 1600 (Series 471)
Elite 1600 (Series 493)
Express 500 (Series 475)
MegaRAID BIOS Configuration Utility The MegaRAID BIOS Configuration utility is a
character-based utility than you can run by pressing <Ctrl> <M> when the
computer boots. Use MegaRAID BIOS Configuration Utility to:
•
•
•
•
•
•
•
•
2
create hotspare drives
configure physical arrays and logical drives
initialize one or more logical drives
individually access controllers, logical drives, and, physical drives
low-level format hard disk drives
rebuild failed disk drives
verify that the redundancy data in logical drives using RAID level 1, 3, or 5
is correct
select a MegaRAID host adapter to work on
Cont’d
MegaRAID Configuration Software Guide
In This Manual, Continued
WebBIOS Configuration Utility MegaRAID WebBIOS Configuration Utility is an HTML
utility that you can run by pressing <Ctrl><H> when the computer boots. Use
WebBIOS Configuration Utility to perform the same functions as the BIOS
Configuration Utility described above.
MegaRAID Manager MegaRAID Manager is a character-based utility that you can run at any
time. Use MegaRAID Manager to:
•
•
•
•
•
•
•
choose a configuration method
designate drives as hot spares
create physical arrays
define logical drives
initialize logical drives
use logical drives in your operating system
rebuild failed disk drives
Power Console Plus Power Console Plus provides on the fly RAID migration, creating almost
limitless adaptability and expansion of any logical drive while the system
remains operational.
Power Console Plus is an object-oriented GUI utility that configures and
monitors RAID systems locally or over a network with several servers. Power
Console Plus can be executed from any workstation. Power Console Plus allows
you to control and monitor the status of hard disk drives, tape drives, and CDROM drives. Power Console Plus runs under Microsoft Windows NT. Use
Power Console Plus to: choose a configuration method, designate drives as hot
spares, create physical arrays, define and initialize logical drives, and rebuild
failed disk drives.
Cont’d
Chapter 1 Overview
3
In This Manual, Continued
Power Console Plus, cont’d Power Console Plus can:
•
•
•
•
•
•
•
•
add drives to any OPTIMAL RAID logical drive
convert from RAID 0 or 1 to RAID 1, 3, or 5 by adding a physical drive
restripe logical drives
change from a DEGRADED redundant logical drive to an OPTIMAL
RAID 0 logical drive
convert a RAID 5 logical drive to a RAID 3 logical drive
convert a RAID 3 logical drive to a RAID 5 logical drive
remove any physical drive from a logical drive
change a RAID 1, 3, or 5 logical drive to a RAID 0 logical drive
Operating System Drivers The MegaRAID PCI SCSI Disk Array RAID Controller is installed in
any IBM AT®-compatible computer with a PCI local bus. MegaRAID can
operate under MS-DOS® or any DOS-compatible operating system using the
standard AT BIOS INT 13h Hard Disk Drive interface.
To operate with other operating systems, you must install software drivers.
MegaRAID provides software drivers for most common operating systems.
Read the MegaRAID Operating System Drivers Guide for complete information
about all MegaRAID operating system drivers.
4
MegaRAID Configuration Software Guide
2
MegaRAID BIOS Configuration
Utility
The MegaRAID BIOS Configuration Utility configures disk arrays and logical
drives. Because the utility resides in the MegaRAID BIOS, its operation is
independent of the operating systems on your computer.
In This Chapter The topics discussed in this chapter include:
•
•
•
•
•
•
•
•
•
•
starting Configuration Utility
MegaRAID Configuration Utility menus
choosing a configuration method
designating drives as hot spares
creating physical arrays
defining logical drives
initializing logical drives
using logical drives in your operating system
rebuilding failed disk drives
using a pre-loaded SCSI drive as-is
Starting MegaRAID Configuration Utility
When the host computer boots, hold the <Ctrl> key and press the <M >key
when the following appears:
Host Adapter-1 Firmware Version x.xx DRAM Size 4 MB
0 Logical Drives found on the Host Adapter
0 Logical Drives handled by BIOS
Press <Ctrl><M> to run MegaRAID BIOS Configuration Utility
For each MegaRAID adapter in the host system, the firmware version, DRAM
size, and the status of logical drives on that adapter is displayed. If you do not
press <Ctrl> <M> within a few seconds of the prompt, the computer continues
the normal boot procedure.
Important
MegaRAID supports one to four SCSI channels, but many of the
screens in this manual show three SCSI channels. The utilities
described in this manual also work with other MegaRAID
models that support one, two, three or four channels.
Cont’d
Chapter 2 MegaRAID Configuration Utility
5
Starting MegaRAID Configuration Utility, Continued
When you press <Ctrl> <M>, the following appears:
Configuration Utility Menu Options The Configuration Utility menu options:
Option
Configure
Initialize
Objects
Format
Rebuild
Check
Consistency
Select
Adapter
Description
Choose this option to configure physical arrays and logical drives.
Choose this option to initialize one or more logical drives.
Choose this option to individually access controllers, logical drives,
and physical drives.
Choose this option to low-level format hard disk drives.
Choose this option to rebuild failed disk drives.
Choose this option to verify that the redundancy data in logical
drives using RAID level 1, 3, or 5 is correct.
Choose this option to select a MegaRAID host adapter to work on.
This menu item appears only if more than one MegaRAID host
adapter is installed in the computer.
If Using MegaRAID Configuration Utility
To...
configure arrays and logical drives
initialize logical drives
format a disk drive
rebuild a disk drive
use a pre-loaded SCSI drive as-is
Use this menu
Configure
Initialize
Format
Rebuild
Configure
turn to...
page 16
page 29
page 31
page 32
page 33
For information about other functions, see the following menu tree and menu
descriptions.
6
MegaRAID Configuration Software Guide
MegaRAID Configuration Utility Menu Tree
The following is an expansion of the menus in the MegaRAID Configuration
Utility.
The menu items are explained on the following pages.
Chapter 2 MegaRAID Configuration Utility
7
MegaRAID Configuration Utility Menu Tree for Ultra 160M Cards
The following is an expansion of the menus in the MegaRAID Configuration
Utility for boards that support Ultra 160M, and 40 logical drives: Enterprise
1600, Elite 1600, and Express 500.
8
MegaRAID Configuration Software Guide
MegaRAID Configuration On Disk
MegaRAID supports Configuration on Disk (drive roaming). Configuration on
Disk saves configuration information both in the MegaRAID NVRAM and on
the disk drives attached to MegaRAID. If MegaRAID is replaced, the new
MegaRAID controller can detect the RAID configuration, maintaining the
integrity of the data on each drive even if the drives have changed channel
and/or target ID.
It is important that the new controller have no configuration. Make sure that
NVRAM Configuration is cleared before you install SCSI cables.
Note:
Adding Configuration on Disk Support Perform the following steps:
Step
1
2
3
4
Note:
Action
Press <Ctrl> <M> at the MegaRAID POST screen to run the MegaRAID
Configuration Utility.
Select the Configure Menu. Select View/Add Configuration. Select Disk
when asked to use Disk or NVRAM and select Save.
Press <Esc> to exit MegaRAID Configuration Utility.
Reboot the computer.
It is important that the new controller have no configuration. Make sure that
NVRAM Configuration is cleared before you install SCSI cables.
Chapter 2 MegaRAID Configuration Utility
9
Configuration Utility Configure Menu
Configure
Choose the Configure option to select a method for configuring arrays and
logical drives.
Option
Easy Configuration
New Configuration
View/Add
Configuration
Clear Configuration
Description
Select this method to perform a basic logical drive
configuration where every physical array you define is
automatically associated with exactly one logical drive.
See page 17 for additional information.
Select this method to discard the existing configuration
information and to configure new arrays and logical
drives. In addition to providing the basic logical drive
configuration functions, New Configuration allows you
to associate logical drives with multiple or partial arrays.
See page 17 for additional information.
Select this method to examine the existing configuration
and/or to specify additional arrays and logical drives.
View/Add Configuration provides the same functions
available in New Configuration. See page 17 for
additional information.
Select this option to erase the current configuration
information from the MegaRAID controller non-volatile
memory.
Configuration Utility Initialize Menu
Initialize
Choose this option from the Configuration Utility main menu to initialize one or
more logical drives. This action typically follows the configuration of a new
logical drive. See page 29 for additional information.
Warning
Initializing a logical drive destroys all data on the logical drive.
10
MegaRAID Configuration Software Guide
Configuration Utility Objects Menu
Objects
Choose the Objects option from the Configuration Utility main menu to access
the controllers, logical drives, physical drives, and SCSI channels individually.
You can also change settings for each object. The Objects menu options are as
follows. Battery Backup appears shown on some Objects menus but you cannot
select this option because MegaRAID does not support this feature.
Adapter
Choose Adapter from the Objects menu to select a controller (if the computer
has more than one) and to modify parameters. You can install only one
MegaRAID controller, but you can also install other controllers. The menu
options are:
•
•
•
•
•
•
•
•
•
Clear Configuration
FlexRAID PowerFail
Disk Spin up Timings
Chip Set Type
Cache Flush Timings
Rebuild Rate
Alarm Control
Factory Defaults
Auto Rebuild
The Objects/Adapter menu options are:
Option
Clear Configuration
FlexRAID
PowerFail
Disk Spin up
Timings
Chip Set Type
Cache Flush
Timings
Rebuild Rate
Alarm Control
Factory Defaults
Auto Rebuild
Description
Choose this option to erase the current configuration from
the controller non-volatile memory.
Choose this option to enable the FlexRAID PowerFail
feature. Choose this option to allow drive reconstruction to
continue when the system restarts if a power failure occurs.
Choose this option to set the method and timing for spinning
up the hard disk drives in the computer.
Select the type of chipset used in the motherboard in the
host computer.
Choose this option to set the cache flush interval to once
every 2, 4, 6, 8, or 10 seconds.
Choose this option to display and change the rebuild rate for
drives attached to the selected adapter.
Choose this option to enable, disable, or silence the onboard
alarm tone generator.
Choose this option to load the default MegaRAID
Configuration Utility settings.
Choose this option to automatically rebuild drives when
they fail.
Cont’d
Chapter 2 MegaRAID Configuration Utility
11
Configuration Utility Objects Menu, Continued
Logical Drive
Choose this option from the Configuration Utility Objects menu to select a
logical drive and to perform the listed actions.
Logical Drive
Option
Initialize
Check
Consistency
View/Update
Parameters
Description
Initializes the selected logical drive. Do this for every logical
drive that is configured.
Verifies the correctness of the redundancy data in the selected
logical drive. This option is available only if RAID level 1, 3, or 5
is used. MegaRAID automatically corrects any differences found
in the data.
Displays the properties of the selected logical drive. You can
modify the cache write policy, read policy, and the I/O policy and
can enable Virtual Sizing from this menu.
Cont’d
12
MegaRAID Configuration Software Guide
Configuration Utility Objects Menu, Continued
Physical Drive
Choose this option from the Configuration Utility Objects menu to select a
physical device and to perform the operations listed in the table below. The
physical hard disk drives in the computer are listed. Move the cursor to the
desired device and press <Enter> to display the following:
Physical Drive
Options
Rebuild
Format
Make Online
Fail Drive
Make HotSpare
View Drive
Information
Synchronous
Negotiation
SCSI Command
Tagging
Description
Rebuild the selected physical drive.
Choose this option to low-level format the selected disk
drive.
Choose this option to change the state of the selected disk
drive to Online.
Choose this option to change the state of the selected disk
drive to Fail.
Choose this option to designate the selected disk drive as a
hot spare.
Choose this option to display the drive properties for the
selected physical device.
Choose this option to enable or disable synchronous
negotiation for the selected physical device. The default is
Enabled.
Choose this option to set the number of queue tags per
command to Disabled, 2, 3, 4, or Enhanced. The default
setting is Enhanced.
Configuration Utility Objects Menu, Continued
SCSI Channel
Choose this option from the Configuration Utility Objects menu to select a SCSI
channel on the currently selected controller. You can perform the following
operations on the selected channel.
Channel Options
Termination State
SCSI Transfer Rate
Description
When set to Enabled, the MegaRAID controller is
terminated. When set to Disabled, it is not. Normally, you
will not need to change this setting. MegaRAID
automatically sets this option.
The SCSI transfer rates are:
Fast
up to 20 MB/s
Ultra
up to 40 MB/s
Ultra-2
up to 80 MB/s
Ultra160M
up to 160 MB/s
Normally, you will not have to change this option.
MegaRAID automatically uses the fastest possible data
transfer rate based on the attached SCSI devices.
Enable Auto
Termination
Chapter 2 MegaRAID Configuration Utility
13
Configuration Utility Format Menu
Format
Choose the Format option from the Configuration Utility main menu to lowlevel format one or more physical drives.
Warning
Formatting a hard drive destroys all data on the drive.
See page 31 for additional information.
Formatting
Since most SCSI disk drives are low-level formatted at the factory, this step is
usually not necessary. You must format a disk only if:
•
•
the disk drive was not low-level formatted at the factory, or
an excessive number of media errors have been detected on the disk drive.
You do not have to choose Format to erase existing information on your SCSI
disks, such as a system partition. That information is erased when you initialize
the logical drive(s).
Configuration Utility Rebuild Menu
Rebuild
14
Choose the Rebuild option from the Configuration Utility main menu to rebuild
one or more failed disk drives. See page 32 for additional information.
MegaRAID Configuration Software Guide
Configuration Utility Check Consistency Menu
Check Consistency Choose this option to verify the redundancy data in logical drives that use
RAID levels 1, 3, or 5.
When you choose Check Consistency, the parameters of the existing logical
drives on the current controller and a selection menu listing the logical drives by
number appear. If a discrepancy is found, it is automatically corrected, assuming
always that the data is correct. However, if the failure is a read error on a data
drive, the bad data block is reassigned with the generated data.
Press the arrow keys to choose the desired logical drives. Press the spacebar to
select or deselect a drive for consistency checking. Press <F2> to select or
deselect all the logical drives.
Press <F10> to begin the consistency check. A progress indicator for each
selected logical drive is displayed.
When the consistency check is finished, press any key to clear the progress
display and press <Esc> to display the main menu.
Chapter 2 MegaRAID Configuration Utility
15
Configuration Utility Select Adapter Menu
This menu item appears only if more than one MegaRAID host adapter is
installed in the computer. You can install only one MegaRAID controller, but
you can install other MegaRAID controllers in the computer. The following
appears when you choose the Select Adapter option:
Sel. Adapter
Adapter-1
Adapter-2
Adapter-3
Select the MegaRAID adapter that you want to configure from this menu.
Disable BIOS Menu
Choose this option to disable the BIOS.
Configuring Arrays and Logical Drives
You can configure physical arrays and logical drives with MegaRAID
Configuration Utility using:
•
•
•
Easy Configuration,
New Configuration, or
View/Add Configuration.
Each configuration method requires a different level of user input. The general
flow of operations for array and logical drive configuration is:
Step
1
2
3
4
5
6
16
Action
Choose a configuration method.
Designate hot spares (optional).
Create arrays using the available physical drives.
Define logical drive(s) using the space in the arrays.
Save the configuration information.
Initialize the new logical drives.
MegaRAID Configuration Software Guide
Choosing the Configuration Method
Easy Configuration In Easy Configuration, each physical array you create is associated with
exactly one logical drive, and you can modify the following parameters:
•
•
•
•
•
RAID level
stripe size
cache write policy
read policy
I/O policy
If logical drives have already been configured when you select Easy
Configuration, the configuration information is not disturbed. See page 19 for
instructions on Easy Configuration.
New Configuration In New Configuration, you can select the following logical drive parameters:
•
•
•
•
•
•
•
RAID level
stripe size
cache write policy
read policy
I/O policy
logical drive size
spanning of arrays
If you select New Configuration, the existing configuration information on the
selected controller is destroyed when the new configuration is saved. See page
23 for instructions on New Configuration.
View/Add Configuration View/Add Configuration allows you to control the same logical drive
parameters as New Configuration without disturbing the existing configuration
information. You can also choose to enable the Configuration on Disk feature.
See page 26 for additional information.
Reserved Disk Space during Configuration Up to 32 KB of disk space is reserved when a hard
disk drive is being configured.
Chapter 2 MegaRAID Configuration Utility
17
Designating Drives as Hot Spares
Hot Spares
Hot spares are physical drives that are powered up along with the RAID drives
and usually stay in a standby state. If a disk drive used in a RAID logical drive
fails, a hot spare will automatically take its place and the data on the failed drive
is reconstructed on the hot spare. Hot spares can be used for RAID levels 1, 3 5,
10, 30, and 50. Each MegaRAID controller supports up to eight hot spares.
The methods for designating physical drives as hot spares are:
•
•
Press <F4>
press <F4> while creating arrays in Easy, New or View/Add Configuration
mode, or
From the Objects/Physical Drive menu, select a physical drive and press
<Enter>. Select Make HotSpare.
When you choose any configuration option, a list of all physical devices
connected to the current controller appears, as shown below:
Press the arrow keys to choose a disk drive that has a READY indicator and
press <F4> to designate the drive as a hot spare. The indicator will change to
HOTSP.
Objects Menu
Select Objects from the Management menu, then select Physical Drive. A
physical drive selection screen will appear. Select a disk drive and press <Enter>
to display the action menu for the drive.
Press the arrow keys to select Make HotSpare and press <Enter>. The indicator
for the selected drive changes to HOTSP.
18
MegaRAID Configuration Software Guide
Using Easy Configuration
In Easy Configuration, each array is associated with exactly one logical drive.
Follow the steps below to create arrays using Easy Configuration. The following
graphics often show 2 or 3 SCSI channels. MegaRAID Explorer supports up to 4
SCSI channels.
Step
1
2
3
Action
Choose Configure from the MegaRAID Configuration Utility main menu.
Choose Easy Configuration from the Configure menu. The array selection menu appears:
Hot key information is displayed at the bottom of the screen. The hot key functions are:
<F2>
Display the manufacturer data and error count for the selected
drive.
<F3>
Display the logical drives that have been configured.
<F4>
Designate the selected drive as a hot spare.
Press the arrow keys to choose specific physical drives. Press the spacebar to associate
the selected physical drive with the current array. The indicator for the selected drive
changes from READY to ONLIN A[array number]-[drive number]. For example,
ONLIN A2-3 means disk drive 3 in array 2.
Add physical drives to the current array as desired. Try to use drives of the same capacity
in a specific array. If you use drives with different capacities in an array, all drives in the
array are treated as if they have the capacity of the smallest drive in the array.
The number of physical drives in a specific array determines the RAID levels that can be
implemented with the array.
RAID 0 requires one or more physical drives.
RAID 1 requires exactly two physical drives.
RAID 3 requires at least three physical drives.
RAID 5 requires at least three physical drives.
Cont’d
Chapter 2 MegaRAID Configuration Utility
19
Using Easy Configuration, Continued
Step
4
Action
Press <Enter> when you are finished creating the current array. The logical drive
configuration screen appears.
The window from the top of the screen shows the logical drive that is currently being
configured as well as any existing logical drives. The column headings are:
LD
RAID
Size
#Stripes
5
The logical drive number
The RAID level
The logical drive size
The number of stripes (physical drives) in the associated physical
array
StrpSz
The stripe size
DriveState
The state of the logical drive
Set the RAID level for the logical drive. Highlight RAID and press <Enter>. The available
RAID levels for the current logical drive are displayed. Select a RAID level and press
<Enter> to confirm. See the MegaRAID Hardware Guide for your board for an
explanation of the RAID levels.
Cont’d
20
MegaRAID Configuration Software Guide
Using Easy Configuration, Continued
Step
6
Action
Set the stripe size, cache write policy, Read policy, and I/O (cache) policy from the
Advanced Menu.
Stripe size This parameter specifies the size of the segments written to each disk in a
RAID 1, 3, 5, 10, 30, or 50 logical drive. You can set the stripe size to 2 KB, 4 KB, 8 KB,
16 KB, 32 KB, 64 KB, or 128 KB. A larger stripe size produces better read performance,
especially if your computer does mostly sequential reads. If you are sure that your
computer does random read requests more often, choose a small stripe size. The default is
64 KB.
Write Policy This option sets the caching method to write-back or write-through.
In Write-back caching, the controller sends a data transfer completion signal to the host
when the controller cache has received all the data in a transaction.
In Write-through caching, the controller sends a data transfer completion signal to the host
when the disk subsystem has received all the data in a transaction. This is the default
setting.
Write-through caching has a data security advantage over write-back caching. Write-back
caching has a performance advantage over write-through caching. You should not use
write-back for any logical drive that is to be used as a Novell NetWare volume.
Read-ahead This option enables the SCSI read-ahead feature for the logical drive. You
can set this parameter to Normal, Read-ahead, or Adaptive.
Normal specifies that the controller does not use read-ahead for the current logical drive.
This is the default setting.
Read-ahead specifies that the controller uses read-ahead for the current logical drive.
Adaptive specifies that the controller begins using read-ahead if the two most recent disk
accesses occurred in sequential sectors. If all read requests are random, the algorithm
reverts to Normal; however, all requests are still evaluated for possible sequential
operation.
Cache Policy This parameter applies to reads on a specific logical drive. It does not affect
the Read ahead cache.
Cached I/O specifies that all reads are buffered in cache memory.
Direct I/O specifies that reads are not buffered in cache memory. Direct I/O does not
override the cache policy settings. Data is transferred to cache and the host concurrently.
If the same data block is read again, it comes from cache memory. This is the default
setting.
Press <Esc> to exit the Advanced Menu.
Cont’d
Chapter 2 MegaRAID Configuration Utility
21
Using Easy Configuration, Continued
Step
7
8
9
22
Action
When you have defined the current logical drive, choose Accept and press <Enter>. The
array selection screen appears if any unconfigured disk drives remain.
Repeat steps 3 through 7 to configure another array and logical drive. MegaRAID supports
up to 40 logical drives per controller. If you are finished configuring logical drives, press
<Esc> to exit Easy Configuration. A list of the currently configured logical drives appears:
After you respond to the Save prompt, the Configure menu appears.
Initialize the logical drives you have just configured. See Initializing Logical Drives on
page 29.
MegaRAID Configuration Software Guide
Using New Configuration
The New Configuration option allows you to associate logical drives with partial
and/or multiple physical arrays (the latter is called spanning of arrays).
Erases Configuration Choosing the New Configuration option erases the existing configuration
information on the selected controller.
To use the spanning feature and keep the existing configuration, use View/Add
Configuration (see page 26).
Step
1
2
Action
Choose Configure from the MegaRAID Configuration Utility main menu.
Choose New Configuration from the Configure menu. An array selection window is
displayed showing the devices connected to the current controller.
Hot key information appears at the bottom of the screen. The hot key functions are:
<F2>
3
Display the manufacturer data and MegaRAID error count for the selected
drive.
<F3>
Display the logical drives that have been configured.
<F4>
Designate the selected drive as a hot spare.
<F10> Display the logical drive configuration screen.
Press the arrow keys to choose specific physical drives. Press the spacebar to associate
the selected physical drive with the current array. The indicator for the selected drive
changes from READY to ONLIN A[array number]-[drive number]. For example,
ONLIN A2-3 means disk drive 3 in array 2.
Add physical drives to the current array as desired. Try to use drives of the same
capacity in a specific array. If you use drives with different capacities in an array, all the
drives in the array are treated as though they have the capacity of the smallest drive in
the array.
The number of physical drives in a specific array determines the RAID levels that can be
implemented with the array.
4
RAID 0 requires one or more physical drives per array.
RAID 1 requires 2 physical drives per array.
RAID 3 requires at least three physical drives per array.
RAID 5 requires at least three physical drives per array.
Press <Enter> when you are finished creating the current array. To continue defining
arrays, repeat step 3. To begin logical drive configuration, go to step 5.
Chapter 2 MegaRAID Configuration Utility
23
Using New Configuration, Continued
Step
5
Action
Press <F10> to configure logical drives. The logical drive configuration screen appears, as
shown below:
The window from the top of the screen shows the logical drive that is currently being
configured as well as any existing logical drives. The column headings are:
LD
RAID
Size
#Stripes
6
7
The logical drive number
The RAID level
The logical drive size
The number of stripes (physical drives) in the associated physical
array
StrpSz
The stripe size
Drive-State
The state of the logical drive
Set the RAID level for the logical drive. Highlight RAID and press <Enter>. A list of the
available RAID levels for the current logical drive appears. Select a RAID level and press
<Enter> to confirm. See the MegaRAID Hardware Guide for your board for an
explanation of the RAID levels.
Set the spanning mode for the current logical drive. Highlight Span and press <Enter>.
The choices are:
CanSpan Array spanning is enabled for the current logical drive. The logical drive can
occupy space in more than one array.
NoSpan Array spanning is disabled for the current logical drive. The logical drive can
occupy space in only one array.
8
For two arrays to be spannable, they must have the same stripe width (they must contain
the same number of physical drives) and must be consecutively numbered. For example,
assuming Array 2 contains four disk drives, it can be spanned only with Array 1 and/or
Array 3, and only if Arrays 1 and 3 also contain four disk drives. If the two criteria for
spanning are met, MegaRAID automatically allows spanning. If the criteria are not met,
the Span setting makes no difference for the current logical drive. Highlight a spanning
option and press <Enter>.
Set the logical drive size. Move the cursor to Size and press <Enter>. By default, the
logical drive size is set to all available space in the array(s) being associated with the
current logical drive, accounting for the Span setting and for partially used array space.
For example, if the previous logical drive used only a part of the space in an array, the
current logical drive size is set to the remaining space by default.
Cont’d
24
MegaRAID Configuration Software Guide
Using New Configuration, Continued
Step
9
Action
Open the Advanced menu to set the remaining options.
Stripe size This parameter specifies the size of the segments written to each disk in a
RAID 1, 3, 5, 10, 30 or 50 logical drive. You can set the stripe size to 2 KB, 4
KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB. A larger stripe size produces
higher read performance, especially if your computer does mostly sequential
reads. However, if you are sure that your computer does random read requests
more often, select a small stripe size. The default stripe size is 64 MB.
Write Policy This option sets the caching method to write-back or write-through.
In Write-back caching, the controller sends a data transfer completion signal to the host
when the controller cache has received all the data in a transaction.
In Write-through caching, the controller sends a data transfer completion signal to the
host when the disk subsystem has received all the data in a transaction. This is the default
setting.
Write-through caching has a data security advantage over write-back caching, whereas
write-back caching has a performance advantage over write-through caching. You should
not use write-back for any logical drive that is to be used as a Novell NetWare volume.
Read-ahead This option enables the SCSI read-ahead feature for the logical drive. You
can set this parameter to Normal, Read-ahead, or Adaptive.
Normal specifies that the controller does not use read-ahead for the current logical drive.
This is the default setting.
Read-ahead specifies that the controller uses read-ahead for the current logical drive.
Adaptive specifies that the controller begins using read-ahead if the two most recent disk
accesses occurred in sequential sectors. If all read requests are random, the algorithm
reverts to Normal, however, all requests are still evaluated for possible sequential
operation.
Cache Policy This parameter applies to reads on a specific logical drive. It does not affect
the Read ahead cache.
Cached I/O specifies that all reads are buffered in cache memory.
Direct I/O specifies that reads are not buffered in cache memory. This is the default
setting.
Direct I/O does not override the cache policy settings. Data is transferred to cache and the
host concurrently. If the same data block is read again, it comes from cache memory.
Press <Esc> to exit the Advanced Menu.
10
11
After you define the current logical drive, choose Accept and press <Enter>. If space
remains in the arrays, the next logical drive to be configured appears. Repeat steps 6 to 9
to configure another logical drive. If the array space has been used, a list of the existing
logical drives appears. Press any key to continue and respond to the Save prompt.
Initialize the logical drives you have just configured. See Initializing Logical Drives on
page 29.
Chapter 2 MegaRAID Configuration Utility
25
Using View/Add Configuration
View/Add Configuration allows you to associate logical drives with partial
and/or multiple physical arrays (this is called spanning of arrays). The existing
configuration is left intact, so you can also use View/Add Configuration simply
to look at the current configuration.
Step
1
2
Action
Choose Configure from the MegaRAID Configuration Utility main menu.
Choose View/Add Configuration from the Configure menu. An array selection window is
displayed showing the devices connected to the current controller.
Hot key information appears at the bottom of the screen. The hot key functions are:
<F2>
3
Display the manufacturer data and MegaRAID error count for the selected
drive.
<F3>
Display the logical drives that have been configured.
<F4>
Designate the selected drive as a hot spare.
<F10> Display the logical drive configuration screen.
Press the arrow keys to choose specific physical drives. Press the spacebar to associate the
selected physical drive with the current array. The indicator for the selected drive changes
from READY to ONLINA[array number]-[drive number]. For example, ONLIN A2-3
means disk drive 3 in array 2.
Add physical drives to the current array as desired. Try to use drives of the same capacity
in a specific array. If you use drives with different capacities in an array, all the drives in
the array is treated as if they have the capacity of the smallest drive in the array.
The number of physical drives in a specific array determines the RAID levels that can be
implemented with the array.
4
RAID 0 requires one or more physical drives per array.
RAID 1 requires 2 physical drives per array.
RAID 3 requires at least three physical drives per array.
RAID 5 requires at least three physical drives per array.
Press <Enter> when you are finished creating the current array. To continue defining
arrays, repeat step 3. To begin logical drive configuration, go to step 5.
Cont’d
26
MegaRAID Configuration Software Guide
Using View/Add Configuration, Continued
Step
5
Action
Press <F10> to configure logical drives. The logical drive configuration screen appears,
as shown below:
The logical drive that is currently being configured and any existing logical drives are
displayed. The column headings are:
LD
RAID
Size
#Stripes
6
7
The logical drive number
The RAID level
The logical drive size
The number of stripes (physical drives) in the associated
physical array
StrpSz
The stripe size
Drive-State
The state of the logical drive
Set the RAID level for the logical drive. Highlight RAID and press <Enter>. The
available RAID levels for the current logical drive appear. Select a RAID level and press
<Enter> to confirm. See the MegaRAID Hardware Guide for your board for an
explanation of the RAID levels.
Set the spanning mode for the current logical drive. Highlight Span and press <Enter>.
The choices are:
CanSpan Array spanning is enabled for the current logical drive. The logical drive can
occupy space in more than one array.
NoSpan Array spanning is disabled for the current logical drive. The logical drive can
occupy space in only one array.
For two arrays to be spannable, they must have the same stripe width (they must contain
the same number of physical drives) and they must be consecutively numbered. For
example, assuming Array 2 contains four disk drives, it can be spanned only with Array 1
and/or Array 3, and only if Arrays 1 and 3 also contain four disk drives. If the two criteria
for spanning are met, MegaRAID automatically activates spanning. If the criteria are not
met, the Span setting makes no difference for the current logical drive. Highlight a
spanning option and press <Enter>.
Configuring RAID 10, RAID 30, or RAID 50 Logical Drives
Configure RAID 10 by spanning two contiguous RAID 1 logical drives. The RAID 1
logical drives must have the same stripe size.
Configure RAID 30 by spanning two contiguous RAID 3 logical drives. The RAID 3
logical drives must have the same stripe size.
Configure RAID 50 by spanning two contiguous RAID 5 logical drives. The RAID 5
logical drives must have the same stripe size.
Cont’d
Chapter 2 MegaRAID Configuration Utility
27
Using View/Add Configuration, Continued
Step
8
9
Action
Set the logical drive size. Move the cursor to Size and press <Enter>. By default, the
logical drive size is set to all available space in the array(s) being associated with the
current logical drive, accounting for the Span setting and for partially used array space.
For example, if the previous logical drive used only a part of the space in an array, the
current logical drive size is set to the remaining space by default.
Open the Advanced menu to set the remaining options.
Stripe size This parameter specifies the size of the segment written to each disk in a
RAID 1, 3, 5, 10, 30 or 50 logical drive. You can set the stripe size to 2 KB, 4
KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB. A larger stripe size produces
higher read performance, especially if your computer does mostly sequential
reads. However, if your computer does random read requests more often,
choose a smaller stripe size. The default is 64 MB.
Write Policy This parameter specifies the cache write policy. You can set the write
policy to write-back or write-through.
In Write-back caching, the controller sends a data transfer completion signal to the host
when the controller cache has received all the data in a transaction.
In Write-through caching, the controller sends a data transfer completion signal to the
host when the disk subsystem has received all the data in a transaction. This is the default
setting.
Write-through caching has a data security advantage over write-back caching, whereas
write-back caching has a performance advantage over write-through caching. You should
not use write-back for any logical drive to be used as a Novell NetWare volume.
Read-ahead This parameter enables the SCSI read-ahead feature for the logical drive.
You can set this parameter to Normal, Read-ahead, or Adaptive.
Normal specifies that the controller does not use read-ahead for the current logical drive.
This is the default setting.
Read-ahead specifies that the controller uses read-ahead for the current logical drive.
Adaptive specifies that the controller begins using read-ahead if the two most recent disk
accesses occurred in sequential sectors. If all read requests are random, the algorithm
reverts to Normal, however, all requests are still evaluated for possible sequential
operation.
Cache Policy This parameter applies to reads on a specific logical drive. It does not
affect the Read ahead cache.
Cached I/O specifies that all reads are buffered in cache memory.
Direct I/O specifies that reads are not buffered in cache memory. This is the default
setting.
Direct I/O does not override the cache policy settings. Data is transferred to cache and
the host concurrently. If the same data block is read again, it comes from cache memory.
Press <Esc> to exit the Advanced Menu.
10
11
28
After you define the current logical drive, choose Accept and press <Enter>. If space
remains in the arrays, the next logical drive to be configured appears. Repeat steps 6 to 9
to configure another logical drive. If all array space is used, a list of the existing logical
drives appears. Press any key to continue. Respond to the Save prompt.
Initialize the logical drives you have just configured. See Initializing Logical Drives on
page 29.
MegaRAID Configuration Software Guide
Initializing Logical Drives
Initialize each new logical drive you configure. You can initialize the logical
drives using:
•
•
Batch Initialization. The Initialize option in the main menu lets you
initialize up to 40 logical drives simultaneously.
Individual Initialization. The Objects/Logical Drive action menu for an
individual logical drive has an Initialize option.
Batch Initialization To initialize logical drives using the batch initialization procedure:
Step
1
Action
Choose Initialize from the Configuration Utility main menu. A list of the current logical
drives appears, as shown below:
2
Press the arrow keys to select all drives. Press the spacebar to select the selected logical
drive for initialization. Press <F2> to select/deselect all logical drives.
When you are done selecting logical drives, press <F10> and choose Yes from the
confirmation prompt. The progress of the initialization for each drive is shown in bar
graph format.
3
4
When initialization is complete, press any key to continue.
Press <Esc> to display the main menu.
Cont’d
Chapter 2 MegaRAID Configuration Utility
29
Initializing Logical Drives, Continued
Individual Initialization
Step
1
Action
Choose the Objects option from the MegaRAID Configuration Utility main menu.
Choose the Logical Drive option from the Objects menu.
2
Select the logical drive to be initialized. The following appears:
3
Choose the Initialize option from the action menu. Initialization progress appears as a bar
graph on the screen.
When initialization completes, press any key to display the previous menu.
4
Using Logical Drives in the Operating System
For information on an operating system other than DOS, see the software
manual accompanying the drivers for that operating system. To use the logical
drive(s) in DOS:
Step
1
2
3
30
Action
Exit MegaRAID Configuration Utility and reboot the computer.
Run DOS FDISK. Configure one or more partitions using the logical drives.
Format the partitions with the FORMAT command.
MegaRAID Configuration Software Guide
Formatting Physical Drives
You can do low-level formatting of SCSI drives using Configuration Utility.
Since most SCSI disk drives are low-level formatted at the factory, this step is
usually not necessary. Usually, you must format a disk if:
•
•
Media Errors
the disk drive was not low-level formatted at the factory, or
an excessive number of media errors have been detected on the disk drive.
Check the View Drive Information screen for the drive to be formatted. You can
view this screen by choosing Objects from the Management menu. Select the
Physical Drives option, and choose a device. Press <F2>.
The error count is displayed at the bottom of the properties screen. If you feel
that the number of errors is excessive, you should probably format the disk
drive. If more than 32 media errors were detected, MegaRAID automatically
puts the drive in FAIL state. This occurs even in a degraded RAID set. The
errors are displayed as they occur. In cases such as this, formatting the drive can
clear up the problem.
You do not have to choose Format to erase existing information on your SCSI
disks, such as a DOS partition. That information is erased when you initialize
logical drives.
Formatting Drives You can format the physical drives using:
•
Individual Formatting. Choose the Format option from Objects on the
Physical Drive action menu for a disk physical drive.
Chapter 2 MegaRAID Configuration Utility
31
Rebuilding Failed Disk Drives
If a disk drive fails in an array that is configured as a RAID 1, 3, or 5 logical
drive, you can recover the lost data by rebuilding the drive.
Rebuild Types
Type
Automatic
Rebuild
Manual
Rebuild
The rebuild types are:
Description
If you have configured hot spares, MegaRAID automatically tries to use them
to rebuild failed disks. Display the Objects/Physical Drive screen while a
rebuild is in progress. The drive indicator for the hot spare disk drive has
changed to REBLD A[array number]-[drive number], indicating the disk drive
being replaced by the hot spare.
Manual rebuild is necessary if no hot spares with enough capacity to rebuild the
failed drives are available. Select the MegaRAID Configuration Utility main
menu Rebuild option or the Rebuild option on the Objects/Physical Drive
menu.
Manual Rebuild – Rebuilding an Individual Drive
Step
1
2
3
4
Action
Choose the Objects option from the MegaRAID Configuration Utility main menu. Choose
Physical Drive from the Objects menu. A device selection window is displayed showing
the devices connected to the current controller.
Press the arrow keys to select the physical drive to be rebuilt and press <Enter>. The
following action menu appears:
Choose the Rebuild option from the action menu and respond to the confirmation prompt.
Rebuilding can take some time, depending on the drive capacity.
When rebuild completes, press any key to display the previous menu.
Manual Rebuild – Batch Mode
Step
1
2
3
4
32
Action
Choose Rebuild from the MegaRAID Configuration Utility main menu. A device selection
window is displayed showing the devices connected to the current controller. The failed
drives have FAIL indicators.
Press the arrow keys to select all drives to be rebuilt. Press the spacebar to select the
selected physical drive for rebuild.
After selecting the physical drives, press <F10> and select Yes at the confirmation prompt.
The indicators for the selected drives changes to REBLD. Rebuilding can take some time,
depending on the number of drives you have selected and the drive capacities.
When rebuild is complete, press any key to continue.
Press <Esc> to display the main menu.
MegaRAID Configuration Software Guide
Using a Pre-loaded SCSI Drive “As-is”
Important
To use a pre-loaded system drive in the manner described here, you
must make it the first logical drive defined (for example: LD1) on the
controller it is connected to. This will make the drive ID 0 LUN 0.
If the drive is not a boot device, the logical drive number is not critical.
You may have a SCSI disk drive that is already loaded with software. The drive
may be a boot disk containing an operating system. You can use the MegaRAID
controller as a SCSI adapter for such a drive by performing the following steps:
Step
1
2
3
4
5
6
7
8
9
10
11
Action
Connect the SCSI drive to the channel on the MegaRAID controller, with
proper termination and TID settings.
Boot the computer and start Configuration Utility by pressing <Ctrl>
<M>.
Choose Easy Configuration from the Configure menu.
Press the cursor keys to select the pre-loaded drive.
Press the spacebar. The pre-loaded drive should now become an array
element.
Press <Enter>. You have now declared the pre-loaded drive as a one-disk
array. Display the logical drive configuration screen.
Set the read policy and cache option on the Advanced menu.
Exit the Advanced menu. Highlight Accept and press <Enter>.
Press <Esc> and choose Yes at the Save prompt.
Exit Configuration Utility and reboot.
Set the host system to boot from SCSI, if such a setting is available.
Exiting MegaRAID Configuration Utility
Press <Esc> when the MegaRAID Configuration Utility management menu is
displayed to exit MegaRAID Configuration Utility. Choose Yes at the prompt.
You must then reboot the computer. The MegaRAID BIOS message appears
again. Press <Esc> when the BIOS Configuration Utility prompt appears.
Chapter 2 MegaRAID Configuration Utility
33
34
MegaRAID Configuration Software Guide
3
WebBIOS Configuration Utility
The WebBIOS Configuration Utility is ROM-based and is available only on the
following controllers:
•
•
•
•
•
Elite 1600 (Series 493)
Enterprise 1500 (Series 467)
Enterprise 1600 (Series 471)
Express 300 (Series 490)
Express 500 (Series 475)
You can use this utility in place of or in conjunction with the <Ctrl> <M> BIOS
configuration utility. It has a graphical user interface and makes full use of the
mouse.
Features
The MegaRAID WebBIOS Configuration Utility configures disk arrays and
logical drives. Because the utility resides in the MegaRAID BIOS, its operation
is independent of the operating systems on your computer. The WebBIOS utility
can be used to:
•
•
•
•
•
•
•
•
•
•
display adapter properties
scan devices
display SCSI channel properties
define logical drives
display logical drive properties
initialize logical drives
check data for consistency
configure physical arrays
select adapters
display the physical properties
You can use the Configuration Wizard to guide you through the steps required
for configuration of the logical drives and physical arrays.
Chapter 3 WebBIOS Configuration Utility
35
Starting the WebBIOS Utility on the Host Computer
When the host computer boots, hold the <Ctrl> key and press the <H> key when
the following appears:
Copyright© AMERICAN MEGATRENDS, INC.
Press <Ctrl><M> to Run Configuration Utility
Or press <Ctrl><H> for WebBIOS
After you press <Ctrl><H>, the Adapter Selection screen displays. You can use
this screen to select the adapter that you want to configure RAID arrays and
logical drives for. Select an adapter and press the Start button to begin the
configuration. If you want to use the BIOS configuration utility instead of
WebBIOS, click on the Control-M button.
Note:
If there is a configuration mismatch between the disks and the NVRAM (Nonvolatile Random Access Memory) on the adapter, the Select Configuration
screen displays first. This screen is used to perform custom configuration, auto
configuration with redundancy, or auto configuration without redundancy. Auto
configuration with redundancy is recommended.
See page 46 for information about selecting a configuration, and page 53 for
information about configuration mismatches.
36
MegaRAID Configuration Software Guide
Starting the MegaRAID WebBIOS Utility on the Host Computer
When the host computer boots, hold the <Ctrl> key and press the <H> key when
the following appears:
Copyright© AMERICAN MEGATRENDS,INC.
Press <Ctrl><M> to Run Configuration Utility
Or press <Ctrl><H> for WebBIOS
Main Screen
Note:
When you press <Ctrl> <H> on the host computer, the following displays, as
shown below. The main screen displays a menu of items that you can select to
display information and make changes to the RAID arrays on the remote server.
The screen also displays the current configuration of the physical and logical
drives. From this screen, you can configure and manage the RAID arrays on the
remote server.
If there are multiple adapters, WebBIOS starts from the Adapter Selection
screen. For information about the Adapter Selection screen, see page 51.
Chapter 3 WebBIOS Configuration Utility
37
WebBIOS Toolbar Icons
The following icons appear on the toolbar:
Icon
Description
Go to Home Page. Click on this icon to return to the main
screen.
Go to Previous Page. Click on this icon to return to the page
you accessed immediately before the current page.
Exit RAID Configuration Utility. Click on this icon to exit
the WebBIOS program.
Adapter Selection. Click on this icon to display the adapters
that you can select.
Scan for Adapters. Click on this icon to scan for adapters
connected to your system.
Adapter Properties. Click on this icon to display the
properties of the adapter, such as the firmware version, BIOS
version, RAM size, and initiator ID.
Configure Adapter. Click on the icon to access the
Configuration Wizard so that you can configure the arrays
and logical drives.
Silence the Alarm. Click on this icon to turn off the sound on
the alarm.
Go to Ctrl-M. Click on this icon to go from the WebBIOS
Configuration Utility to the <Ctrl> <M> MegaRAID
configuration utility that resides in the MegaRAID firmware.
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MegaRAID Configuration Software Guide
Adapter Properties
The following screen appears when you select Adapter Properties from the
MegaRAID WebBIOS main screen:
The Adapter Properties menu options are:
Option
Firmware Version
BIOS Version
RAM Size
Initiator ID
Rebuild Rate
Spinup Parameters
Flex RAID
PowerFail
Alarm Control
Adapter BIOS
Cluster Mode
Battery Backup
Auto Rebuild
Class Emulation
Mode
Set Factory
Defaults
Description
This item displays the firmware version number.
This item displays the BIOS version number.
This item displays the size of the random access memory.
Identifying number for the MegaRAID card. You can change the Initiator ID
only when you are in cluster mode. You cannot change the ID while in
standard mode. The ID can be a number from 0 to 15. We recommend that
you use 6 or 7. When you are in standard mode, the ID is always 7.
Use this option to select the rebuild rate for drives attached to the selected
adapter.
Use this option to set the timing for spinning up the hard disk drives in the
computer. The options are Automatic, 2 per sec, 4 per sec, or 6 per sec.
Choose this option to enable or disable the FlexRAID PowerFail feature.
This option allows drive reconstruction to continue when the system restarts
because of a power failure.
Choose this option to enable, disable, or silence the onboard alarm tone
generator.
Choose this option to enable or disable the BIOS on the adapter.
Cluster mode allows the controller to operate as part of a cluster. You can
enable or disable cluster mode. When you disable cluster mode, the system
operates in standard mode. In addition, when you enable cluster mode, the
system automatically disables the BIOS.
Indicates whether the battery backup is present or absent.
Enable this option to automatically rebuild drives when they fail.
You can select this option to operate in I2O or mass storage mode.
Enable this option to load the default MegaRAID WebBIOS Configuration
Utility settings.
Chapter 3 WebBIOS Configuration Utility
39
Scan Devices
When you select the Scan Devices option, WebBIOS checks the physical and
logical drives to see if there are any changes to the drive status. It displays the
results of the scan on the main screen in the physical and logical drives section.
For example, if a physical drive has failed, the words “Not Responding” display
to the right of the drive name under the Physical Drives heading.
SCSI Channel Properties
A screen such as the following appears when you select SCSI Channel
Properties from the MegaRAID WebBIOS main screen:
Properties
The SCSI channel properties under the Properties heading are:
Option
Channel Width
Termination
SCSI Capabilities
Description
Displays the number of bits that can pass through the channel
at one time.
Use this option to enable or disable SCSI termination.
Use this option to select Fast, Ultra,Ultra III, or 160M as the
SCSI capability.
Cont’d
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MegaRAID Configuration Software Guide
SCSI Channel Properties, Continued
SCSI Channels The SCSI Channels section of the screen lists the channels on the selected
controller, and the values for the properties.
Click on the Submit button to save changes to the options. Click on the Reset
button to undo any changes and return to the configuration that existed before
you made any changes.
Other Options
The other options on this screen are:
•
•
Home: Click on Home to return to the main menu screen
Back: Click on Back to return to the previous screen
Chapter 3 WebBIOS Configuration Utility
41
Logical Drives
A screen such as the following appears when you select Logical Drives from the
main screen or click on a logical drive in the list of logical drives on the main
screen:
The upper right section of the screen displays the logical drives that currently
exist. Below that section are options to:
•
•
•
•
initialize the logical drives
check consistency
display the logical drive properties
boot from a logical drive
After you select a logical drive to boot from, the system will boot from that
logical drive when you reboot. This field is 0-n, where n+1 logical drives are
created on the controller. For example, it would be 0-0 for a user when there is
only one logical drive on the controller. Press Go to perform the selected action
or Reset to delete any changes.
Press Go to perform the selected action or Reset to delete any changes.
You should initialize each new logical drive that you configure. You can use the
Initialize option on the Logical Drives screen to initialize logical drives. Perform
the following actions to initialize a logical drive.
Initialize
Step
1
2
3
4
Action
Select the Logical Drives option from the MegaRAID WebBIOS main
screen.
On the Logical Drives screen, select the logical drive to be initialized.
Click in the box next to Initialize, then click on Go. The progress of the
initialization appears as a graph on the screen.
When initialization completes, click on the Back button to display the
previous menu.
Cont’d
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MegaRAID Configuration Software Guide
Logical Drives, Continued
Check Consistency Choose this option to verify the correctness of the redundancy data. This
option is available only if RAID level 1, 3 or 5 is selected. MegaRAID
automatically converts any differences found in the data.
After you click on Check Consistency and the Go button, a progress chart
displays on the left side of the screen to show how much of the consistency
check has been completed. There is also an option to abort the check for any or
all logical drives. The following screen shows a consistency check in progress:
Cont’d
Chapter 3 WebBIOS Configuration Utility
43
Logical Drives, Continued
Properties
Select this option to:
•
•
•
•
•
display the logical drive properties (such as RAID level, logical drive size,
and stripe size)
display the read, write and I/O policies
change the read, write and I/O policies
start initialization
start a consistency check
The following is an example of the properties screen:
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MegaRAID Configuration Software Guide
Physical Drives
A screen such as the following appears when you select Physical Drives from
the main screen.
This screen displays the physical drives for each channel. From this screen, you
can rebuild the physical arrays or view the properties for the physical drive you
select. Select Rebuild or Properties and click on Go to perform these actions.
Press Reset to return to the configuration that existed before you made any
changes.
Chapter 3 WebBIOS Configuration Utility
45
Configuration Wizard
A screen such as the following appears when you select Configuration Wizard
on the MegaRAID WebBIOS main screen. Click on Next.
On this screen, you can begin the procedure to clear a configuration, create a
new configuration, or add a configuration. After you select one of the options,
click on Next to go to step 2.
Select Configuration Step 2 displays on the following screen. On this screen, you can choose
custom configuration, auto configuration with redundancy, or auto configuration
without redundancy. Auto configuration with redundancy is recommended.
Cont’d
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MegaRAID Configuration Software Guide
Configuration Wizard, Continued
Array Definition The array definition screen displays next. To add drives to an array, press the
Ctrl key while you select ready drives. Click on Accept Array to add the drives.
To undo the changes, press the Reclaim button. Click on Next to go to Step 4.
The following is an example of an array being added:
Cont’d
Chapter 3 WebBIOS Configuration Utility
47
Configuration Wizard, Continued
Logical Drive Definition The Logical Drive definition screen displays next. Click on a logical
drive to display the following screen for that drive. Use this screen to configure
the logical drive.
Perform the following steps to configure a logical drive.
Step
1
2
Action
Select the RAID level. Click on the down arrow in the box to the right of RAID Level to
display the possible RAID levels for the logical drive.
Select the Stripe Size.
Stripe size This parameter specifies the size of the segment written to each disk in a RAID
1, 3, 5, 10, 30 or 50 logical drive. You can set the stripe size to 2 KB, 4 KB, 8
KB, 16 KB, 32 KB, 64 KB, or 128 KB. A larger stripe size produces higher read
performance, especially if your computer does mostly sequential reads.
However, if your computer does random read requests more often, choose a
smaller stripe size. The default is 8 KB.
3
Select the Read Policy.
Read-Ahead This parameter enables the SCSI read-ahead feature for the logical drive.
You can set this parameter to Normal, Read-ahead, or Adaptive.
Normal specifies that the controller does not use read-ahead for the current logical drive.
Read-ahead specifies that the controller uses read-ahead for the current logical drive. This
is the default setting.
Adaptive specifies that the controller begins using read-ahead if the two most recent disk
accesses occurred in sequential sectors. If all read requests are random, the algorithm
reverts to Normal, however, all requests are still evaluated for possible sequential
operation.
Cont’d
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MegaRAID Configuration Software Guide
Configuration Wizard, Continued
Step
4
Action
Select the Write Policy.
Write Policy This parameter specifies the cache write policy. You can set the write policy
to write-back or write-through.
5
In Write-back caching, the controller sends a data transfer completion signal to the host
when the controller cache has received all the data in a transaction.
In Write-through caching, the controller sends a data transfer completion signal to the host
when the disk subsystem has received all the data in a transaction. This is the default
setting.
Write-through caching has a data security advantage over write-back caching, whereas
write-back caching has a performance advantage over write-through caching. You should
not use write-back for any logical drive to be used as a Novell NetWare volume.
Select the Cache Policy.
Cache Policy This parameter applies to reads on a specific logical drive. It does not affect
the Read ahead cache.
6
7
8
Cached I/O specifies that all reads are buffered in cache memory. This is the default
setting.
Direct I/O specifies that reads are not buffered in cache memory. Direct I/O does not
override the cache policy settings. Data is transferred to cache and the host concurrently.
If the same data block is read again, it comes from cache memory.
Enable or disable the spanning mode for the current logical drive. If enabled, the logical
drive can occupy space in more than one array. If disabled, the logical drive can occupy
space in only one array.
For two arrays to be spannable, they must have the same stripe width (they must contain
the same number of physical drives) and must be consecutively numbered. For example,
assuming Array 2 contains four disk drives, it can be spanned only with Array 1 and/or
Array 3, and only if Arrays 1 and 3 also contain four disk drives. If the two criteria for
spanning are met, MegaRAID automatically allows spanning. If the criteria are not met,
the Span setting makes no difference for the current logical drive.
Select the size of the logical drive in MB.
Click on the Accept button to accept the changes or click on the Reset button to delete the
changes and return to the previous settings.
Cont’d
Chapter 3 WebBIOS Configuration Utility
49
Configuration Wizard, Continued
Configuration Preview Step 5 displays a preview of the configuration that you have created.
Click on Accept to save the configuration or Back to return to the previous
screens and change the configuration.
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MegaRAID Configuration Software Guide
Adapter Selection
When you select the Adapter Selection option on the MegaRAID WebBIOS
main screen, the following screen displays a list of the MegaRAID adapters in
the system. You can select an adapter and begin configuration.
Chapter 3 WebBIOS Configuration Utility
51
Physical View\Logical View
A screen such as the one below displays when you select Physical View or
Logical View from the WebBIOS main screen. The option toggles between
Physical View and Logical View. For example, if you select Physical View on
the screen below, the option changes to Logical View. If you then select Logical
View, the option changes back to Physical View. That way, you can go back and
forth between physical and logical views.
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MegaRAID Configuration Software Guide
Configuration Mismatch
A configuration mismatch occurs when the data in the NVRAM (Non-volatile
Random Access Memory) and the hard disk drives are different. On the
following screen, you can:
•
•
•
select Create New Configuration to delete the previous configuration and
create a new configuration
select View Disk Configuration to restore the configuration from the hard
disk
select View NVRAM Configuration to restore the configuration from the
NVRAM
Chapter 3 WebBIOS Configuration Utility
53
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MegaRAID Configuration Software Guide
4
MegaRAID Manager
Overview
MegaRAID Manager is a character-based, non-GUI utility that configures and
monitors RAID systems. MegaRAID Manager runs under MS-DOS 3.2 or later
and MS-DOS-compatible operating systems, including:
•
•
•
•
•
•
•
•
MS-DOS version 6.xx or later
Microsoft Windows NT V4.0, and 2000
Novell NetWare 4.2, and 5.x
OS/2 Warp Server 4.0, and e-business
SCO UnixWare 7.x
SCO Open Server 5.0x
Sun Solaris 7, and 8 (x86)
Linux Red Hat v6.2
In This Chapter The topics discussed in this chapter include:
•
•
•
•
•
•
•
•
•
starting MegaRAID Manager
MegaRAID Manager menus
choosing a configuration method
designating drives as hot spares
creating physical arrays
defining logical drives
initializing logical drives
using logical drives in your operating system
rebuilding failed disk drives
Starting MegaRAID Manager
To start MegaRAID Manager, make sure the program file is in your file path.
Type the command:
In...
DOS
NetWare
SCO Unix
UnixWare
OS/2
Other
Type this:
MEGACONF
load megamgr
megamgr
megamgr
MEGACONF
See the software guide for the operating system.
Cont’d
Chapter 4 MegaRAID Manager
55
Starting MegaRAID Manager, Continued
The first MegaRAID Manager screen is:
Main Menu Options The MegaRAID Manager options are:
Option
Configure
Initialize
Objects
Format
Rebuild
Check
Consistency
Advanced
Menu
Select
Adapter
Description
Configure arrays and logical drives.
Initialize one or more logical drives.
Individually access controllers, logical drives, and physical drives.
Low-level format hard disk drives.
Rebuild failed disk drives.
Verify redundancy data in logical drives using RAID level 1, 3, or 5.
MegaRAID automatically corrects any differences found in the data.
Run the Enclosure Management and Diagnostics functions (the
Diagnostics function is not yet implemented).
Select the adapter you want to configure. This item displays only if
more than one MegaRAID host adapter is installed in the computer.
If Using MegaRAID Manager
To...
configure arrays and logical drives
initialize logical drives
format a disk drive
rebuild a disk drive
Use this menu
Configure
Initialize
Format
Rebuild
Turn to...
page 65
page 79
page 81
page 83
For information about other functions, see the following menu tree and menu
descriptions.
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MegaRAID Configuration Software Guide
MegaRAID Manager Menu Tree
The menu items are explained on the following pages.
Chapter 4 MegaRAID Manager
57
MegaRAID Manager Configure Menu
Configure
Choose the Configure option to select a method for configuring arrays and
logical drives.
Option
Auto
Configuration
Easy
Configuration
New
Configuration
View/Add
Configuration
Clear
Configuration
Description
Select this method to have the MegaRAID controller
automatically configure arrays and logical drives for you. See
page 66 for additional information.
Select this method to perform a basic logical drive
configuration where every physical array you define is
automatically associated with exactly one logical drive.
See page 69 for additional information.
Select this method to discard the existing configuration
information and to configure new arrays and logical drives. In
addition to providing the basic logical drive configuration
functions, New Configuration allows you to associate logical
drives with multiple or partial arrays. See page 73 for
additional information.
Select this method to examine the existing configuration
and/or to specify additional arrays and logical drives.
View/Add Configuration provides the same functions as New
Configuration. See page 76 for additional information.
Select this option to erase the current configuration
information from the MegaRAID controller non-volatile
memory.
MegaRAID Manager Initialize Menu
Initialize
58
Choose this option from the MegaRAID Manager main menu to initialize one or
more logical drives. This action typically follows the configuration of a new
logical drive. See page 79 for additional information.
MegaRAID Configuration Software Guide
MegaRAID Manager Objects Menu
Objects
Choose the Objects option from the MegaRAID Manager main menu to access
the controllers, logical drives, physical drives, and SCSI channels individually,
along with the battery backup. You can also change certain settings for each
object. The Objects menu options are described below.
Adapter
Choose the Adapter option from the Objects menu to select a MegaRAID
controller if your computer has more than one and to modify parameters. You
can install only one MegaRAID controller, but you can install other MegaRAID
controllers in the computer.
Option
Clear
Configuration
View Adapter
Performance
FlexRAID
PowerFail
Disk Spin up
Timings
Alarm Control
View/Update
Parameters
Adapter Type
Description
Choose this option to erase the current configuration from the
controller non-volatile memory.
This option is not yet supported.
Choose this option to allow drive reconstruction to continue when
the system restarts if a power failure occurs. This will reduce the
size of the logical drive by (1 MB times the number of drives in
the logical drive).
Choose this option to set the method and timing for spinning up
the hard disk drives in the computer.
Choose this option to enable, disable, or silence the onboard
alarm tone generator.
Choose this option to display the firmware version number and
the cache memory size. In addition, you can change the rebuild
rate for the adapter through this option.
Displays the type of adapter used. The adapter can be customized.
Cont’d
Chapter 4 MegaRAID Manager
59
MegaRAID Manager Objects Menu, Continued
Logical Drive
Choose this option from the Objects menu to select a logical drive and to
perform the listed actions.
Logical Drive
Options
Initialize
Check
Consistency
View/Update
Parameters
Physical Drive
Description
Choose this option to initialize the selected logical drive. This
should be done for every logical drive you configure.
Choose this option to verify the correctness of the redundancy data
in the selected logical drive. This option is available only if RAID
level 1, 3, or 5 is used. MegaRAID automatically corrects any
differences found in the data.
Choose this option to display the properties of the selected logical
drive; you can modify the cache write policy, the cache read
policy, virtual sizing, and the I/O policy from this menu. Set the
virtual sizing option to Enabled before adding a physical drive to a
logical drive. After you have created a logical drive set, the
partition of the drive should be as large as the virtual size of the
logical drive.
Choose this option from the Objects menu to select a physical device and to
perform the operations listed below. When you choose this option, the physical
drives in the computer are listed. Move the cursor to the desired device and
press <Enter>. The following appears:
Physical Drive Menu
Physical Drive
Options
Rebuild
Format
Make Online
Fail Drive
Make HotSpare
View Drive
Information
View Rebuild
Progress
Description
Choose this option to rebuild the selected disk drive.
Choose this option to low-level format the selected hard disk drive.
Choose this option to change the state of the selected hard disk drive to
Online.
Choose this option to change the state of the selected disk drive to Fail.
Choose this option to designate the selected disk drive as a hot spare.
Choose this option to see the manufacturer data for the selected physical
device.
Choose this option to see the progress of the rebuild process for the selected
disk drive.
Cont’d
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MegaRAID Configuration Software Guide
MegaRAID Manager Objects Menu, Continued
SCSI Channel
Choose this option from the Objects menu to select a SCSI channel on the
currently selected controller. You can perform the following operations on the
selected channel.
Channel Options
Termination Status
Activate Channel
Terminate High 8
Bits
Terminate Wide
Channel
Disable Termination
View Parameters
Description
Choose this option to change the type of termination.
Choose this option to activate the selected channel. Be sure
that TermPWR is provided for all active channels.
Choose this option to enable termination on the selected
channel for the upper eight bits and disable termination on
the controller for the lower eight bits. This setting is
required if the selected SCSI channel is terminated with 8bit devices at both ends.
Choose this option to enable Wide termination for the
selected channel. This is required if the MegaRAID
controller is at one end of the SCSI bus for the selected
channel.
Choose this option to disable termination on the
MegaRAID controller for the selected channel. This option
should be used if the selected SCSI channel is terminated
with Wide devices at both ends.
Choose this option to view the termination and active status
of the selected channel.
Battery Backup Choose this option from the Objects menu to view or update parameters for the
battery backup module.
Chapter 4 MegaRAID Manager
61
MegaRAID Manager Format Menu
Choose the Format option from the MegaRAID Manager main menu to lowlevel format one or more physical drives.
Format
See 81 for additional information.
Formatting
Since most SCSI disk drives are low-level formatted at the factory, this step is
usually not necessary. You typically must format a disk if:
•
•
the disk drive was not low-level formatted at the factory, or
an excessive number of media errors have been detected on the disk drive.
You do not need to use the Format option if you simply want to erase existing
information on your SCSI disks, such as a DOS partition. That information is
erased when you initialize the logical drive(s).
MegaRAID Manager Rebuild Menu
Rebuild
Choose the Rebuild option from the MegaRAID Manager main menu to rebuild
one or more failed disk drives.
See page 83 for additional information.
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MegaRAID Configuration Software Guide
MegaRAID Manager Check Consistency Menu
Check Consistency Choose this option to verify the redundancy data in logical drives using
RAID levels 1, 3, or 5. When you choose Check Consistency, the parameters of
the existing logical drives on the current controller appear. The logical drives are
listed by number. MegaRAID automatically corrects any differences found in
the data.
Press the arrow keys to select the desired logical drives. Press the spacebar to
select or deselect a drive for consistency checking. Press <F2> to select or
deselect all the logical drives.
Press <F10> to begin the consistency check. A progress indicator for each
selected logical drive appears, as shown below:
When the consistency check is finished, press any key to clear the progress
display and press <Esc> to display the main menu.
Chapter 4 MegaRAID Manager
63
MegaRAID Manager Advanced Menu
Reconstruct Logical Drive You can select or deselect a logical drive to be recreated using this
option. Choose this option before you add or remove a physical drive.
Enclosure Management This option is used to monitor an external enclosure containing SCSI
devices. MegaRAID can monitor the fan speed, power supply voltage, and
temperature, appropriate signals from the enclosure.
Beside each SCSI device listing, a diamond-shaped indicator shows the
condition of that device. A green diamond indicates normal operation. A red
diamond indicates failure. If the fan, temperature or power supply goes bad, the
word for the device will change from green to red.
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MegaRAID Configuration Software Guide
MegaRAID Manager Select Adapter Menu
This menu item appears only if more than one MegaRAID host adapter is
installed in the computer. You can only install one MegaRAID controller, but
you can install other MegaRAID controllers in the computer. The following
appears when you choose the Select Adapter option:
Sel. Adapter
Adapter-1
Adapter-2
Adapter-3
Select the MegaRAID adapter that you want to configure from this menu.
Configuring Arrays and Logical Drives
You can configure physical arrays and logical drives with MegaRAID Manager
using:
•
•
•
•
Auto Configuration
Easy Configuration
New Configuration
View/Add Configuration
Each configuration method requires a different level of user input. The general
flow of operations for array and logical drive configuration is:
Step
1
2
3
4
5
6
Action
Choose a configuration method.
Designate hot spares (optional).
Create arrays using the available physical drives.
Define logical drives using the space in the arrays.
Save the configuration information.
Initialize the logical drives.
Chapter 4 MegaRAID Manager
65
Choosing the Configuration Method
Automatic Configuration In Automatic Configuration, the MegaRAID controller examines the
physical drives connected to it and automatically configures them into arrays
and logical drives.
If logical drives have already been configured when you select Auto
Configuration, the configuration information is not disturbed. See page 68 for
additional information.
Easy Configuration In Easy Configuration, each physical array you create is associated with
exactly one logical drive, and you can modify the following parameters:
•
•
•
•
•
RAID level
stripe size
cache write policy
read policy
I/O policy
If logical drives have already been configured when you select Easy
Configuration, the configuration information is not disturbed.
See page 69 for instructions on Easy Configuration.
New Configuration In New Configuration, you can modify the following logical drive
parameters:
•
•
•
•
•
•
•
RAID level
stripe size
cache write policy
read policy
I/O policy
logical drive size
spanning of arrays
If you select New Configuration, the existing configuration information on the
selected controller is destroyed when the new configuration is saved. See page
73 for instructions on New Configuration.
View/Add Configuration View/Add Configuration allows you to control the same logical drive
parameters as New Configuration without disturbing the existing configuration
information. See page 76 for additional information.
Reserved Disk Space during Configuration Up to 20.6 MB of disk space is reserved when a
hard disk drive is being configured.
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MegaRAID Configuration Software Guide
Designating Drives as Hot Spares
Hot Spares
Hot spares are physical drives that are powered up along with the RAID drives
and usually stay in a standby state. If a disk drive used in a RAID logical drive
fails, a hot spare will automatically take its place and the data on the failed drive
is reconstructed on the hot spare. Hot spares can be used for level 1, 3 and 5
RAID. Each MegaRAID controller supports up to eight hot spares. Refer to the
MegaRAID hardware guide for your board for an explanation of hot spares.
The two methods for designating physical drives as hot spares are:
•
•
Press <F4>
press <F4> while creating arrays in Easy, New or View/Add Configuration
mode
highlight a drive using the space bar and press <Enter>. Select Make
HotSpare
When you choose any configuration option in the Configure menu, all physical
devices connected to the current controller appear:
Press the arrow keys to select a disk drive that has a READY indicator and press
<F4> to designate it as a hot spare. The indicator changes to HOTSP.
Objects Menu
Select Objects from the Configure menu, then select Physical Drive. A physical
drive selection screen will appear. Press the spacebar to select a disk drive and
press <Enter> to display the action menu for the drive.
Press the arrow keys to select Make HotSpare and press <Enter>. The indicator
for the selected drive changes to HOTSP.
Chapter 4 MegaRAID Manager
67
Using Auto Configuration
Configuration Guidelines In Auto Configuration, MegaRAID examines the physical drives
connected to it and automatically configures them into arrays and logical drives.
MegaRAID uses the following configuration guidelines in the following
sequence:
Step
1
2
3
Action
Gather drives with the same capacity into groups of five, four, or three.
These groups become arrays associated with RAID level 5 logical drives.
Gather pairs of drives with the same capacity together. These pairs
become arrays associated with RAID 1 logical drives.
Configure any remaining single disk drives as arrays associated with
RAID 0 logical drives.
Logical Drive Settings The logical drive settings will be:
Parameter
Stripe size
Write Policy
Read Policy
Cache Policy
Spanning
Setting
64 KB
Write-through
Readahead
Direct I/O
Off
The write policy, read policy, and cache policy can be changed after
configuration is complete.
User Actions
Step
1
2
3
4
68
Perform the following steps when using auto configuration:
Action
Designate hot spares (optional, but if chosen, should be done first).
Choose Configure from the MegaRAID Manager main menu.
Choose Auto Configuration from the Configure menu and respond to the
confirmation prompt.
The logical drives that result from Auto Configuration are displayed on the
screen with a save prompt. Choose Yes to save the configuration.
If you chose Yes at the space prompt, initialize the logical drives. See page
79 for additional information.
MegaRAID Configuration Software Guide
Using Easy Configuration
In Easy Configuration, each array is associated with exactly one logical drive.
Follow the steps below to create arrays using Easy Configuration:
Step
1
2
Action
Choose Configure from the MegaRAID Manager main menu.
Choose Easy Configuration from the Configure menu. The array selection menu appears:
The hot key information appears at the bottom of the screen. The hot key functions are:
<F2>
3
Display the manufacturer data and MegaRAID error
count for the selected drive.
<F3>
Display the logical drives that have been configured.
<F4>
Designate the selected drive as a hot spare.
Press the arrow keys to select specific physical drives. Press the spacebar to associate the
selected physical drive with the current array. The indicator for the selected drive changes
from READY to ONLIN A[array number]-[drive number]. For example, ONLIN A2-3
means disk drive 3 in array 2.
Add physical drives to the current array as desired. Try to use drives of the same capacity
in a specific array. If you use drives with different capacities in an array, all the drives in
the array is treated as though they have the capacity of the smallest drive in the array.
The number of physical drives in a specific array determine the RAID levels that can be
implemented with the array.
RAID 0 requires one or more physical drives.
RAID 1 requires 2 physical drives.
RAID 3 requires at least three physical drives.
RAID 5 requires at least three physical drives.
Cont’d
Chapter 4 MegaRAID Manager
69
Using Easy Configuration, Continued
Step
4
Action
Press <Enter> when you are finished creating the current array. The logical drive
configuration screen appears.
The window at the top of the screen shows the logical drive that is currently being
configured as well as any existing logical drives. The column headings are:
LD
RAID
Size
#Stripes
5
The logical drive number
The RAID level
The logical drive size
The number of stripes (physical drives) in the associated physical
array
StrpSz
The stripe size
Drive-State
The state of the logical drive
Set the RAID level for the logical drive. Highlight RAID and press <Enter>. The
available RAID levels for the current logical drive are displayed. Select a RAID level and
press <Enter> to confirm. See the MegaRAID Hardware Guide for your board for an
explanation of the RAID levels.
Cont’d
70
MegaRAID Configuration Software Guide
Using Easy Configuration, Continued
Step
6
Action
Set the stripe size, cache write policy, Read policy, and I/O (cache) policy from the
Advanced Menu.
Stripe size This parameter specifies the size of the segments written to each disk in a
RAID 1, 3, 5, 10, 30, or 50 logical drive. You can set the stripe size to 2 KB, 4
KB, 8 KB, 16 KB, 32 KB, 64 KB, or 128 KB. The default stripe size is 64 MB.
A larger stripe size provides better read performance, especially if your computer does
mostly sequential reads. However, if you are sure that your computer does random read
requests more often, choose a small stripe size.
Write policy This parameter specifies the cache write policy. You can set the write
policy to Write-back or Write-through. The default is Write-through.
In Write-back caching, the controller sends a data transfer completion signal to the host
when the controller cache has received all the data in a transaction. If WriteBack is
enabled and the system is quickly turned off and then on, MegaRAID may hang when
flushing cache memory. Adapters that contain a battery backup will default to WriteBack
caching. Adapters which contain a battery will default to WriteBack.
In Write-through caching, the controller sends a data transfer completion signal to the
host when the disk subsystem has received all the data in a transaction. This is the default
setting.
Write-through caching has a data security advantage over write-back caching, whereas
write-back caching has a performance advantage over write-through caching. You should
not use write-back for any logical drive that is to be used as a Novell NetWare volume.
Read-ahead This parameter enables the SCSI read-ahead feature for the logical drive.
You can set this parameter to Normal, Read-ahead, or Adaptive. The default
setting is Normal.
Normal specifies that the controller does not use read-ahead for the current logical drive.
Read-ahead specifies that the controller uses read-ahead for the current logical drive.
Adaptive specifies that the controller begins using read-ahead if the two most recent disk
accesses occurred in sequential sectors. If all read requests are random, the algorithm
reverts to Normal; however, all requests are still evaluated for possible sequential
operation.
Cache policy This parameter applies to reads on a specific logical drive. It does not affect
the Read-ahead cache. The default setting is Direct I/O.
Cached I/O specifies that all reads are buffered in cache memory.
Direct I/O specifies that reads are not buffered in cache memory. Direct I/O does not
override the cache policy settings. Data is transferred to cache and the host concurrently.
If the same data block is read again, it comes from cache memory. Press <Esc> to exit the
Advanced Menu.
Cont’d
Chapter 4 MegaRAID Manager
71
Using Easy Configuration, Continued
Step
7
8
9
72
Action
When you are finished defining the current logical drive, select Accept and press <Enter>.
The array selection screen appears if any unconfigured disk drives remain.
Repeat steps 3 through 7 to configure another array and logical drive. If you are finished
configuring logical drives, press <Esc> to exit Easy Configuration. A list of the currently
configured logical drives appears:
After you respond to the Save prompt, the Configure menu appears.
Initialize the logical drives you have just configured. See Initializing Logical Drives on
page 79.
MegaRAID Configuration Software Guide
Using New Configuration
The New Configuration option allows you to associate logical drives with partial
and/or multiple physical arrays (the latter is called spanning of arrays).
Erases Configuration Choose the New Configuration option to erase the existing configuration
information about the selected controller.
To use the spanning feature and keep the existing configuration, use View/Add
Configuration (see page 76).
Step
1
2
Action
Choose Configure from the MegaRAID Manager main menu.
Choose New Configuration from the Configure menu. An array selection window is
displayed showing the devices connected to the current controller.
Hot key information appears at the bottom of the screen. The hot key functions are:
<F2>
3
Display the manufacturer data and MegaRAID error
count for the selected drive.
<F3>
Display the logical drives that have been configured.
<F4>
Designate the selected drive as a hot spare.
<F10> Display the logical drive configuration screen.
Press the arrow keys to select specific physical drives. Press the spacebar to associate the
selected physical drive with the current array. The indicator for the selected drive changes
from READY to ONLIN A[array number]-[drive number]. For example, ONLIN A2-3
means disk drive 3 in array 2.
Add physical drives to the current array as desired. Try to use drives of the same capacity
in a specific array. If you use drives with different capacities in an array, all the drives in
the array is treated as though they have the capacity of the smallest drive in the array.
The number of physical drives in a specific array determine the RAID levels that can be
implemented with the array.
4
RAID 0 requires one or more physical drives per array.
RAID 1 requires 2 physical drives per array.
RAID 3 requires at least three physical drives per array.
RAID 5 requires at least three physical drives per array.
Press <Enter> when you are finished creating the current array. To continue defining
arrays, repeat step 3. To begin logical drive configuration, go to step 5.
Cont’d
Chapter 4 MegaRAID Manager
73
Using New Configuration, Continued
Step
5
Action
Press <F10> to configure logical drives. The logical drive configuration screen appears, as
shown below:
The window from the top of the screen shows the logical drive that is currently being
configured as well as any existing logical drives. The column headings are:
LD
RAID
Size
#Stripes
6
7
The logical drive number
The RAID level
The logical drive size
The number of stripes (physical drives) in the associated
physical array
StrpSz
The stripe size
Drive-State
The state of the logical drive
Set the RAID level for the logical drive. Highlight RAID and press <Enter>. The available
RAID levels for the current logical drive are listed. Select a RAID level and press <Enter>
to confirm. See the MegaRAID Hardware Guide for an explanation of the RAID levels.
Set the spanning mode for the current logical drive. Highlight Span and press <Enter>.
The choices are:
CanSpan Array spanning is enabled for the current logical drive. The logical drive can
occupy space in more than one array.
NoSpan Array spanning is disabled for the current logical drive. The logical drive can
occupy space in only one array.
For two arrays to be spannable, they must have the same stripe width (they must contain
the same number of physical drives) and the arrays must be consecutively numbered. For
example, assuming Array 2 contains four disk drives, it can be spanned only with Array 1
and/or Array 3, and only if Arrays 1 and 3 also contain four disk drives. If the two criteria
for spanning are met, MegaRAID allows spanning. If the criteria are not met, the Span
setting makes no difference for the current logical drive. Highlight the spanning option
and press <Enter>.
Configuring RAID 10, RAID 30, or RAID 50 Logical Drives
Configure RAID 10 by spanning two contiguous RAID 1 logical drives. The RAID 1
logical drives must have the same stripe size.
Configure RAID 30 by spanning two contiguous RAID 3 logical drives. The RAID 3
logical drives must have the same stripe size.
Configure RAID 50 by spanning two contiguous RAID 5 logical drives. The RAID 5
logical drives must have the same stripe size.
Cont’d
74
MegaRAID Configuration Software Guide
Using New Configuration, Continued
Step
8
9
Action
Set the logical drive size. Move the cursor to Size and press <Enter>. By default, the
logical drive size is set to all available space in the array(s) being associated with the
current logical drive, accounting for the Span setting and for partially used array space. For
example, if the previous logical drive used only a part of the space in an array, the current
logical drive size is set to the remaining space by default.
Choose the Advanced menu (see below) to set remaining options.
Stripe size This parameter specifies the size of the segment written to each disk in a RAID
1, 3, 5, 10, 30, or 50 logical drive. You can set the stripe size to 2 KB, 4 KB, 8 KB, 16 KB,
32 KB, 64 KB, or 128 KB. The default stripe size is 64 MB.
A larger stripe size produces better read performance, especially if your computer does
mostly sequential reads. If you are sure that your computer does random reads more often,
select a small stripe size.
Write Policy This parameter specifies the cache write policy. You can set the write policy
to Write-back or Write-through. The default setting is Write-through.
In Write-back caching, the controller sends a data transfer completion signal to the host
when the controller cache has received all the data in a transaction. If WriteBack is enabled
and the system is quickly turned off and then on, MegaRAID may hang when flushing cache
memory. Adapters that contain a battery backup will default to WriteBack caching.
In Write-through caching, the controller sends a data transfer completion signal to the host
when the disk subsystem has received all the data in a transaction. This is the default
setting.
Write-through caching has a data security advantage over write-back caching. Write-back
caching has a performance advantage over write-through caching. You should not use
write-back for any logical drive that is to be used as a Novell NetWare volume.
Read-ahead This parameter specifies that the SCSI read-ahead feature is used for the
logical drive. You can set this parameter to Normal, Read-ahead, or Adaptive. The
default setting is Normal.
Normal specifies that the controller does not use read-ahead for the current logical drive.
This is the default setting.
Read-ahead specifies that the controller uses read-ahead for the current logical drive.
Adaptive specifies that the controller begins using read-ahead if the two most recent disk
accesses occurred in sequential sectors. If all read requests are random, the algorithm
reverts to Normal, however, all requests are still evaluated for possible sequential
operation.
Cache Policy This parameter applies to reads on a specific logical drive. It does not affect
the Read-ahead cache. The default setting is Direct I/O.
10
11
Cached I/O specifies that all reads are buffered in cache memory.
Direct I/O specifies that reads are not buffered in cache memory. This is the default setting.
Direct I/O does not override the cache policy settings. Data is transferred to cache and the
host concurrently. If the same data block is read again, it comes from cache memory. Press
<Esc> to exit the Advanced Menu.
After the current logical drive is defined, select Accept and press <Enter>. If space remains
in the arrays, the next logical drive to be configured appears. Repeat steps 6 to 9 to
configure another logical drive. If all array space has been used, a list of the existing logical
drives appears. Press any key to continue and respond to the Save prompt.
Initialize the logical drives you have just configured. See Initializing Logical Drives on
page 79.
Chapter 4 MegaRAID Manager
75
Using View/Add Configuration
View/Add Configuration allows you to associate logical drives with partial
and/or multiple physical arrays. This is called array spanning.
The existing configuration is left intact, so you can also use View/Add
Configuration simply to look at the current configuration.
Step
1
2
Action
Choose Configure the MegaRAID Manager main menu.
Choose View/Add Configuration from the Configure menu. An array selection window
(shown below) is displayed showing the devices connected to the current controller.
Hot key information appears at the bottom of the screen. The hot key functions are
<F2>
3
Display the manufacturer data and MegaRAID error count for the selected
drive.
<F3>
Display the logical drives that have been configured.
<F4>
Designate the selected drive as a hot spare.
<F10> Display the logical drive configuration screen.
Press the arrow keys to select the physical drives. Press the spacebar to select physical
drives to be associated with the current array. The indicator for the selected drive changes
from READY to ONLIN A[array number]-[drive number]. For example, ONLIN A2-3
means disk drive 3 in array 2.
Add physical drives to the current array as desired. Try to use drives of the same capacity
in a specific array. If you use drives with different capacities in an array, all drives in the
array are treated as if they have the capacity of the smallest drive in the array.
The number of physical drives in a specific array determine the RAID levels that can be
implemented with the array.
4
RAID 0 requires one or more physical drives per array.
RAID 1 requires 2 physical drives per array.
RAID 3 requires at least three physical drives per array.
RAID 5 requires at least three physical drives per array.
Press <Enter> to end the selection process. To continue defining arrays, repeat step 3. To
begin logical drive configuration, go to step 5.
Cont’d
76
MegaRAID Configuration Software Guide
Using View/Add Configuration, Continued
Step
5
Action
Press <F10> to configure logical drives. The logical drive configuration screen appears:
The window at the top of the screen shows the logical drive that is currently being
configured as well as any existing logical drives. The column headings are:
LD
RAID
Size
#Stripes
6
7
The logical drive number
The RAID level
The logical drive size
The number of stripes (physical drives) in the associated physical
array
StrpSz
The stripe size
Drive-State
The state of the logical drive
Set the RAID level for the logical drive. Highlight RAID and press <Enter>. The
available RAID levels for the current logical drive are displayed. Select a RAID level and
press <Enter> to confirm. See the MegaRAID Hardware Guide for your board for an
explanation of the RAID levels.
Set the spanning mode for the current logical drive. Highlight Span and press <Enter>.
The choices are:
CanSpan Array spanning is enabled for the current logical drive. The drive
can occupy space in more than one array.
NoSpan Array spanning is disabled for the current logical drive. The drive
can occupy space in only one array.
For two arrays to be spannable, they must have the same stripe width (they must contain
the same number of physical drives) and must be consecutively numbered. For example,
assuming Array 2 contains four disk drives, it can be spanned only with Array 1 and/or
Array 3, and only if Arrays 1 and 3 also contain four disk drives. If the two criteria for
spanning are not met, the Span setting makes no difference for the current logical drive.
Highlight a spanning option and press <Enter>.
Configuring RAID 10, RAID 30, or RAID 50 Logical Drives
Configure RAID 10 by spanning two contiguous RAID 1 logical drives. The RAID 1
logical drives must have the same stripe size.
Configure RAID 30 by spanning two contiguous RAID 3 logical drives. The RAID 3
logical drives must have the same stripe size.
Configure RAID 50 by spanning two contiguous RAID 5 logical drives. The RAID 5
logical drives must have the same stripe size.
Cont’d
Chapter 4 MegaRAID Manager
77
Using View/Add Configuration, Continued
Step
8
9
Action
Set the logical drive size. Move the cursor to Size and press <Enter>. By default, the
logical drive size is set to all available space in the array(s) being associated with the
current logical drive, accounting for the Span setting and for partially used array space.
For example: if the previous logical drive used only a part of the space in an array, the
current logical drive size is set to the remaining space by default.
Open the Advanced menu to set the remaining options.
Stripe size This parameter sets the size of the segment written to each disk in a RAID 0, 1,
3, or 5 logical drive. You can set the stripe size to 2 KB, 4 KB, 8 KB, 16 KB, 32
KB, 64 KB, or 128 KB. The default stripe size is 64 MB.
A larger stripe size produces better read performance, especially if your computer does
mostly sequential reads. However, if you are sure that your computer does random reads
more often, select a small stripe size.
Write Policy This parameter sets the cache write policy. You can set the write policy to
Write-back or Write-through. The default setting is Write-through.
In Write-back caching the controller sends a data transfer completion signal to the host
when the controller cache has received all the data in a transaction. If WriteBack is
enabled and the system is quickly turned off and then on, MegaRAID may hang when
flushing cache memory.
In Write-through caching, the controller sends a data transfer completion signal to the host
when the disk subsystem has received all the data in a transaction. This is the default
setting.
Write-through caching has a data security advantage over write-back caching, whereas
write-back caching has a performance advantage over write-through caching. You should
not use write-back for any logical drive to be used as a Novell NetWare volume.
Read-ahead This parameter enables the SCSI read-ahead feature for the logical drive. Set
this parameter to Normal, Read-ahead, or Adaptive. The default setting is
Normal.
Normal specifies that the controller does not use read-ahead for the current logical drive.
This is the default setting.
Read-ahead specifies that the controller uses read-ahead for the current logical drive.
Adaptive specifies that the controller begins using read-ahead if the two most recent disk
accesses occurred in sequential sectors. If all read requests are random, the algorithm
reverts to Normal, however, all requests are still evaluated for possible sequential
operation.
Cache Policy This parameter applies to reads on a specific logical drive. It does not affect
the Read ahead cache. The default setting is Direct I/O.
10
11
78
Cached I/O specifies that all reads are buffered in cache memory.
Direct I/O specifies that reads are not buffered in cache memory. This is the default
setting. Direct I/O does not override the cache policy settings. Data is transferred to cache
and the host concurrently. If the same data block is read again, it comes from cache
memory. Press <Esc> to exit the Advanced Menu.
When you are finished defining the current logical drive, select Accept and press <Enter>.
If space remains in the arrays, the next logical drive to be configured appears. Repeat steps
6 to 9 to configure another logical drive. If the array space is used, a list of the existing
logical drives appears. Press any key to continue. Respond to the Save prompt.
Initialize the logical drives you have just configured. See Initializing Logical Drives on
page 79.
MegaRAID Configuration Software Guide
Initializing Logical Drives
You should initialize each new logical drive you configure. You can initialize
the logical drives in two ways:
•
•
Batch Initialization. The Initialize option in the main menu lets you
initialize logical drives simultaneously.
Individual Initialization. The Objects/Logical Drive action menu for an
individual logical drive has an Initialize option.
Batch Initialization
Step
1
Action
Choose Initialize from the MegaRAID Manager main menu. A list of the current logical
drives appears, as shown below:
2
Press the arrow keys to select all drives to be initialized. Press the spacebar to select the
selected logical drive for initialization. Press <F2> to select or deselect all the logical
drives.
When you have selected the logical drives, press <F10> and choose Yes at the
confirmation prompt. The progress of the initialization for each drive is shown in bar
graph format.
3
4
When initialization is complete, press any key to continue.
Press <Esc> to display the main menu.
Cont’d
Chapter 4 MegaRAID Manager
79
Initializing Logical Drives, Continued
Individual Initialization
Step
1
Action
Choose the Objects option from the MegaRAID Manager main menu. Choose the Logical
Drive option from the Objects menu, shown below:
2
Select the logical drive to be initialized. The following appears:
3
Choose Initialize from the Action menu. The progress of the initialization appears as a
graph on the screen.
When initialization completes, press any key to display the previous menu.
4
Using Logical Drives in the Operating System
For information on an operating system other than DOS, see the software
manual accompanying the drivers for that operating system. To use the logical
drive(s) in DOS:
Step
1
2
3
80
Action
Exit MegaRAID Manager and reboot the computer.
Run DOS FDISK and configure one or more partitions using the logical
drives.
Format the partitions using the FORMAT command.
MegaRAID Configuration Software Guide
Formatting Physical Drives
You can do low-level formatting of SCSI drives using MegaRAID Manager.
Since most SCSI disk drives are low-level formatted at the factory, this step is
usually not necessary. You typically must format a disk if:
•
•
Media Errors
the disk drive was not low-level formatted at the factory, or
an excessive number of media errors have been detected on the disk drive.
Check the properties screen for the drive you wish to format. You can check this
screen by choosing Objects from the Physical Drive menu, pressing the arrow
keys to select the selected drive and pressing <F2>.
The error count appears at the bottom of the properties screen. If you feel that
the number of errors is excessive, you should probably format the disk drive. If
more than 32 media errors were detected, MegaRAID automatically puts the
drive in FAIL state. In cases such as this, formatting the drive can clear up the
problem.
You do not have to use the Format option to erase existing information on your
SCSI disks, such as a DOS partition. That information is erased when you
initialize logical drives.
Formatting Drives You can format the physical drives using:
•
Individual Formatting. Choose the Format option from Objects on the
Physical Drive action menu for an individual disk drive.
Cont’d
Chapter 4 MegaRAID Manager
81
Formatting Physical Drives, Continued
Individual Formatting
Step
1
2
Press the arrow keys to select the physical drive to be formatted and press <Enter>. The
following action menu appears:
3
Choose the Format option from the action menu and respond to the confirmation prompt.
Formatting can take some time, depending on the drive capacity.
When formatting completes, press any key to display the previous menu.
4
82
Action
Choose the Objects option from the MegaRAID Manager main menu. Choose the
Physical Drive option from the Objects menu. A device selection window is displayed
showing the devices connected to the current controller, as shown below:
MegaRAID Configuration Software Guide
Rebuilding Failed Disk Drives
If a disk drive fails in an array configured as a RAID 1, 3, or 5 logical drive, you
can recover the lost data by rebuilding the drive. If a rebuilding spare fails, a
new rebuild is started using a second spare, if available. The capacity of the
second spare must be equal to or greater than the failed drive.
Rebuild Types
Type
Automatic
Rebuild
Manual
Rebuild
The rebuild types are:
Description
If you have configured hot spares, MegaRAID automatically tries to use them to
rebuild failed disks. Display the Objects/Physical Drive screen while a rebuild is
in progress. The drive indicator for the hot spare disk drive has changed to
REBLD A[array number]-[drive number], indicating the disk drive being
replaced by the hot spare.
Manual rebuild is necessary if no hot spares with enough capacity to rebuild the
failed drives are available. Select the MegaRAID Manager main menu Rebuild
option or the Rebuild option on the Objects/Physical Drive menu.
Manual Rebuild – Rebuilding an Individual Drive
Step
1
Action
Choose the Objects option from the MegaRAID Manager main menu. Choose Physical
Drive from the Objects menu. A window appears that shows the devices connected to the
current controller:
2
Press the arrow keys to select the physical drive to be rebuilt and press <Enter>. The
following action menu appears:
3
Choose the Rebuild option from the action menu and respond to the confirmation prompt.
Rebuilding can take some time, depending on the drive capacity.
When rebuild completes, press any key to display the previous menu.
4
Cont’d
Chapter 4 MegaRAID Manager
83
Rebuilding Failed Disk Drives, Continued
Manual Rebuild – Batch Mode
Step
1
2
3
4
Action
Choose Rebuild from the MegaRAID Manager main menu. A device selection window is
displayed showing the devices connected to the current controller. The failed drives have
FAIL indicators.
Press the arrow keys to select all drives to be rebuilt. Press the spacebar to select the
selected physical drive for rebuild.
After selecting the physical drives, press <F10> and type Yes at the confirmation prompt.
The indicators for the selected drives changes to REBLD. Rebuilding can take some time,
depending on the number of drives you have selected and their capacities.
When rebuild is complete, press any key to continue.
Press <Esc> to display the main menu.
Exiting MegaRAID Manager
To exit MegaRAID Manager, press <Esc> from the main menu and choose Yes
at the prompt. A message appears if uninitialized logical drives remain in the
system.
84
MegaRAID Configuration Software Guide
5
Installing Power Console Plus
Power Console Plus is an object-oriented GUI utility that lets you efficiently
configure, and monitor a large RAID array of disks locally or over a network
with several servers. This is for servers that support Windows NT and 2000 and
are capable of monitoring and being monitored, and for servers that support
NetWare 4.x and 5.0, which can be monitored, but cannot monitor.
You can use Power Console Plus to control and monitor the status of each
physical drive connected to the MegaRAID controller. You can us it to control
and monitor the status of hard disk drives, tape drives, and CD-ROM drives.
Power Console Plus can be executed from any workstation. It runs under most
Microsoft Windows operating systems, with support for Novell NetWare.
Apart from the standard menu structure, the Power Console Plus user interface
is object-oriented: the picture of an object on the screen truly represents a
physical or logical object. You can right click the mouse on an object to display
a set of options for the selected object.
Features
The Power Console Plus features include:
•
a configuration wizard that guides you through the configuration process
•
•
•
•
•
•
•
•
•
•
•
•
•
•
FlexRAID functionality for seamless online expansion without interrupting server
operations
on-the-fly RAID level migration
support for SAF-TE (SCSI accessed fault-tolerant enclosure), SNMP, and SMART
check consistency can be scheduled to constantly ensure that parity and mirrored
data is written correctly
performance monitor
enclosure management to monitor temperature, power supply voltage, and fan status
virtual sizing for drive migration under Windows NT
ability to change logical drive write, read, and cache policies after the logical drive
has been configured
ability to save the configuration option
ability to spin down physical drives before removal
ability to view actual current SCSI transfer rate
silent install
battery backup support
complete system monitoring capability
Cont’d
Chapter 5 Installing Power Console Plus
85
Overview, Continued
Windows NT Users With some older firmware, you must use one logical drive if you have only
one MegaRAID adapter in the host system. Most firmware requires only an
attached device. If you have more than one MegaRAID adapter, make sure at
least one physical drive is attached to each MegaRAID adapter before you access
these MegaRAID adapters from Power Console Plus in Windows NT. You can
alleviate this problem by attaching and configuring at least a non-disk SCSI
device to each MegaRAID adapter. You can configure these logical drives using
MegaRAID Configuration Utility.
Client System Requirements Client systems running Power Console Plus must:
•
•
•
•
•
•
•
•
Components
be running Windows NT or Windows 2000
have an Intel Pentium or higher CPU
have at least 8 MB of system memory
have a network interface
have a 3.5” floppy disk drive
have at least 2 MB of free hard disk drive space
have a mouse or other pointing device
must be using the TCP/IP protocol
The Power Console Plus package consists of:
•
•
•
•
•
Power Console Plus
MegaService Monitor
SNMP Agent
the registration server
the RAID server
Power Console Plus Client Any computer running Windows NT or Windows 2000 can run
Power Console Plus. Running Power Console Plus allows this computer to
access any RAID server that is registered in the Registration Server.
Registration Server The Registration Server contains a database of all computers that have
registered as a RAID Server.
RAID Server
86
The RAID Server software runs in any server that has one or more MegaRAID
controllers and allows it to register to the Registration Server.
MegaRAID Configuration Software Guide
Installing on a Windows NT V4.x Server and Workstation
Power Console Plus can be installed and registered on a Windows NT, Windows
2000. See the LSI Logic web site (www.lsilogic.com) for additional information
about supporting Novell NetWare as a RAID server. This allows the NetWare
server to be seen and accessed from Windows NT and 2000.
Installation Prerequisites Complete the following tasks before installing the Power Console Plus
software:
Step
1
2
3
4
5
Action
Install the proper operating system software and service packs.
Install network cards in all computers that will need them.
Install a MegaRAID adapter card in the RAID server. Follow the procedures
in the appropriate MegaRAID Hardware Guide.
Install the TCP/IP Protocol on all specified systems.
The Power Console Plus installation process now prompts you to perform
the following edit. Edit the HOSTS file in c:\winnt\system32\drivers\etc. The
HOSTS file should look like this:
The HOSTS file information varies depending on the type of installation:
Enter the IP address and name of all the MegaRAID servers,
including the registration server
Example:
Specify all Sequential IP addresses for the server or servers, and the
workstation. For example:
Server A
Server B
Workstation C
123.123.234.1
123.123.234.2
123.123.234.3
All specified systems must conform to the TCP/IP specification for address
structures.
6
Press <Enter> after you type all names of the servers. If you do not,
Notepad might not enter the information.
Ping all systems by IP address and server name to make sure you have a
proper connection.
Chapter 5 Installing Power Console Plus
87
Installing on a Windows NT V4.x Server and Workstation, Continued
Installing the Power Console Plus Software
Step
1
Action
Insert the Power Console Plus CD in the CD-ROM drive. You can view the
files in Windows Explorer. In the CD-ROM directory, select the application
folder, as shown below. Double-click on Setup.exe to run the program.
Note: Power Console Plus requires Microsoft Internet Explorer 5.5 or
later, and Service Pack 6 or later.
2
88
Click on Next when the first screen appears.
MegaRAID Configuration Software Guide
Step
Action
The license agreement and README screens appear. Click on Next. Choose
the installation packages from the following screen. You can choose 1, 2, or
all 3 packages:
MegaRAID Registration Server Makes the server a Registration Server.
MegaRAID Server
Allow the server to register to the Registration Server.
MegaRAID Client
Allows the server to monitor other servers with a
MegaRAID adapter.
Any configuration is valid. Common combinations include:
MegaRAID Server only
You cannot monitor any other server.
MegaRAID Server and Client
Allows you to register into the Registration server. You can
monitor any other server, including the server you’re
currently working on.
MegaRAID Registration Server only Allows other MegaRAID servers to register so they can be
monitored by the MegaRAID client. You cannot monitor any
server, including the server you’re currently working on.
MegaRAID Registration
Server and Client
Allows other MegaRAID servers to register so they can be
monitored by the MegaRAID client. You can monitor any
server, but not the server you’re currently working on.
MegaRAID Registration
Server, Client, and Server
Allows other MegaRAID servers to register so they can be
monitored by the MegaRAID client. You can monitor any
server, including the server you’re currently working on.
MegaRAID Client only
Allows you to monitor any MegaRAID server. You do not
have to have a RAID controller installed in this system.
Chapter 5 Installing Power Console Plus
89
Step
4
Action
The rest of this table is concerned with Power Console Plus installation.
For additional information about SNMP package installation, see page 94.
For additional information about MegaRAID Service Monitor installation, see
page 95.
Click on Install to begin installation.
5
The progress screen for the InstallShield Setup wizard displays.
In this example, all three components are selected. The server includes the following
features:
the server is the primary registration server of the network
•
the server registers to itself so it can be monitored
•
the server can monitor other RAID servers, including itself
•
6
Click on the Next button. Select the destination directory path. The default
destination directory is C:\Program Files\MegaRAID\.
The default Program Folder Name is MegaRAID.
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Step
7
Action
Set the password as prompted. Verify the password and click on the OK
button.
8
You are prompted to edit the REGSERV.DAT file, and HOST file. Edit
REGSERV.DAT in c:\winnt\system32\drivers\etc using the Notepad
program. REGSERV.DAT should look something like this:
When editing REGSERV.DAT, replace the name “localhost” with your
Registration Server name, no matter what configuration you have selected,
even if the Registration Server is the server you are working on.
Press <Enter> after you type the name of the Registration Server. If you do
not, Notepad might not enter the information.
Chapter 5 Installing Power Console Plus
91
Step
9
Action
If you have not edited the HOST file yet, edit HOST in
c:\winnt\system32\drivers\etc using the Notepad program. HOST should look
like this:
The HOSTS file information varies depending on the type of installation:
Enter the IP address and name of all MegaRAID servers including the
registration server.
Example:
Specify all Sequential IP addresses for the server or servers, and the
workstation. For example:
123.123.234.1
123.123.234.2
123.123.234.3
Server A
Server B
Workstation C
All specified systems must conform to the TCP/IP specification for address
structures.
Press <Enter> after typing all names of the servers. If you do not,
Notepad will not enter the information.
10
Save the file and exit. The following message displays. Reboot your system
for Power Console Plus to take effect.
.
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Sample Power Console Plus Network Layout
Chapter 5 Installing Power Console Plus
93
Installing an LSI Logic SNMP Agent
The following installs the LSI Logic SNMP agent on a system running Windows
NT 4.x Server and Workstation.
SNMP Installation Prerequisites You must be running Windows NT v4.x or Windows 2000 in
the system where SNMP will be installed. The LAN cards must be configured
with TCP/IP. Ping all IP addresses to make sure the connections are good.
Installing SNMP Services in Windows NT 4.x The following instructions install SNMP Services
and verification of SNMP Services operation for Windows NT 4.x. SNMP
Services must be installed before the LSI Logic SNMP agent will work
properly.
Step
1
2
3
4
5
6
7
8
9
Action
Select Settings, Control Panel, and then Services from the Windows NT
Start button. In Services, use the scrollbar to locate SNMP Services.
If SNMP TRAP SERVICES is set to –Started Automatic, go to SNMP
installation on the Power Console Plus installation CD. If you do not find
SNMP TRAP SERVICES listed, go to step 3.
From the Windows NT Start button, Select Settings, Control Panel, and
then Network. Select Services from the Network workgroup.
Select the Add button. Scroll down and select SNMP Services.
Select OK. Insert the Windows NT CD as prompted.
After the files have transferred from the CD, select the Agent tab. Edit:
Contact Name:
Enter the computer user name
Location:
Enter the IP address of your server
Select the Traps tab. Edit:
Community Name: Enter “PUBLIC” or desired name.
Trap Destination: Enter the IP address of the Server where HP Open
View is installed.
The Security Tab can remain at default. Reboot the system.
After reboot, go to step 1 for verification of SNMP Services installation.
Installation of SNMP Agent
Step
1
2
94
Action
Insert the first Power Console Plus CD in the CD-ROM drive. Click on
Start, click on Run, and choose Browse for the CD-ROM drive. Select
SETUP.EXE from Power Console Plus installation CD and click on OK.
Select SNMP from the menu. The SNMP agent is now installed.
MegaRAID Configuration Software Guide
MegaRAID Service Monitor
The MegaRAID Service Monitor Program is a Windows NT Service Process. The
monitor program tracks status changes for hardware devices. The monitor program
runs in the background. It polls the status of the resources connected to the
MegaRAID adapters every 10 to 15 seconds.
The monitor program, MegaService Monitor, is part of the Power Console Plus
installation package. The monitor program is installed as a service and is loaded
automatically. If installed, this program logs peripheral device activities and
status changes to Event Viewer. Event Viewer logs changes whether Power
Console Plus is running or not. The changes are also stored in View Log, which
records changes only when Power Console Plus is running. Status changes are
stored in the MEGARAID.LOG file.
This filename could be different if the system has been customized. The
contents of the displayable activity log include all status changes and device
activities.
The filename for the MegaService Monitor is:
Contents
•
MEGASERV.EXE
Installation is done through Power Console Plus Installshield.
Installation
Step
1
2
Action
Insert the first Power Console Plus CD in the CD-ROM drive. Click on
Start, click on Run, and choose Browse for the CD-ROM. Select
SETUP.EXE from Power Console Plus installation CD and click on OK.
Select MegaRAID Service Monitor from the menu. The MegaRAID
Service Monitor is now installed.
Chapter 5 Installing Power Console Plus
95
Installing and Registering Power Console Plus Components in a
NetWare Server 4.x
TCP/IP must be configured and operational before you begin the following
procedure.
Important
The process of installing the NetWare RAID and Registration
Server components overwrites RPCBSTUB.NLM in the
SYS:SYSTEM directory. In servers running Novell NetWare
4.1xs, this file is a Read-Only file, so you must first change the file
attribute to Read-Write before beginning installation.
Step
1
Action
Insert the Power Console Plus installation disk in the floppy drive. From
the NetWare prompt, type:
LOAD X:RAIDINST.NLM (where X is the floppy drive letter)
and press <Enter> to load the following files:
2
3
RAIDSERV.NLM
REG_SERV.NLM
REG_MAIN.NLM
Select Install Package. If you are installing this package to a registration
server, select YES when prompted. If there is another server on the
network that is serving as the registration server, select NO. The files will
be copied to the Novell server.
Type the password when prompted. Verify the password when prompted.
Edit the Hosts File for a RAID Server Use the following procedure if installing Power Console
Plus on a server that is not a registration server.
Step
1
Action
Type
LOAD EDIT
2
3
at the NetWare prompt and press <Enter>.
Press the <Ins> key and select SYS volume. Select the ETC directory.
Select the Hosts file and press <Enter>.
Add the TCP/IP address and name of the registration server.
Cont’d
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MegaRAID Configuration Software Guide
Installing and Registering Power Console Plus Components in a
NetWare Server, Continued
Edit the Hosts File for a RAID Registration Server Use the following procedure if installing
Power Console Plus on a server that is the registration server.
Step
1
Action
Type
LOAD EDIT
2
3
4
at the NetWare prompt and press <Enter>.
Press the <Ins> key and select SYS volume. Select the ETC directory.
Select the Hosts file and press <Enter>.
Add the TCP/IP addresses and names of all servers that are registering into
the registration server.
Add the TCP/IP address and name of the registration server (the server you
are currently working on.)
Edit REGSERV.DAT for a RAID Server or Registration Server
Step
1
Action
Type
LOAD EDIT
2
3
at the NetWare prompt and press <Enter>.
Press the <Ins> key and select SYS volume. Select the ETC directory.
Select the REGSERV.DAT file and press <Enter>.
Add the name of the registration server (the server you are currently
working on.)
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97
De-registering and Re-registering under Power Console Plus
If the registration server fails or is shut down, the other RAID servers or clients
must log back into the registration server after the registration server has been
restored to an online condition. RAID servers can register into the registration
servers without resetting. The online command instructions for registering and
de-registering under each operating system are:
Operating
System
Windows NT 4.x,
Windows 2000
Novell NetWare
98
De-registering
Re-registering
Select RAID Server on the taskbar
using a right mouse click and select
CLOSE.
Type
Execute MegaRAID Server
from the MegaRAID Console
menu.
Type
UNLOAD RAIDSERV
LOAD RAIDSERV
at the console prompt and press
<Enter>.
at the console prompt and
press <Enter>.
MegaRAID Configuration Software Guide
6
Running Power Console Plus
The current version of Power Console Plus is 4.xx. Double-click on the Power
Console Plus icon in the MegaRAID program group on the Windows screen:
Power Console Plus Screen Layout Windows user interface conventions are used. Click on an
object with the left mouse button to select or deselect the object. The screen
elements are:
Element
Menu Bar
Toolbar
Adapter
Views
Physical
Devices
Logical
Devices
Bottom
Description
Select options from the Configuration, Adapter, Physical Drive,
Logical Drive, Progress, or Help menus.
Click on a toolbar icon to select an option. See page 101 for
additional information about toolbar icons.
In the right-hand box, choose the adapter to be configured.
Choose Logical View or Physical View.
The Physical Devices windows display the physical devices attached
to the SCSI channels.
The rightmost window displays the logical devices for each adapter
and hot spare.
Displays the number of physical drives and logical drives for the
selected array.
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99
User Interface Restrictions
You cannot choose a different server or adapter if an operation, such as a
rebuild, background initialization, check consistency, Performance Monitor
display, or drive reconstruction is in progress.
Power Console Plus Restrictions When selecting a new server in Full Access mode, you must
enter the password for the new server. You cannot access the new server if it is
already being managed by a system in Full Access mode or if Power Console
Plus or MegaRAID Manager is already running.
You cannot change from View Only mode to Full Access mode. You must exit
Power Console Plus and then run Power Console Plus again. Choose the server,
then choose Full Access mode and enter the password when prompted.
Important
The screen graphics in this chapter show Power Console Plus screens with
four SCSI channels. Various MegaRAID models support one, two, three, or
four SCSI channels. The screen pictures in this manual show four SCSI
channels, since this is the most comprehensive configuration. Your
MegaRAID model may not support four SCSI channels. See the MegaRAID
Hardware Guide for your model for additional information.
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MegaRAID Configuration Software Guide
Power Console Plus Toolbox Icons
Power Console Plus includes several toolbar icons at the top of the screen. These
icons provide easy access to Power Console Plus features. The icons are
described below.
The Display Configuration icon is shown to the left. Click on this icon to display
the current RAID system configuration, as shown on the sample screen below:
The print icon is shown to the left. Click on this icon to print the current
configuration.
The Wizard configuration icon is shown to the left. Click on this icon to configure
the SCSI devices attached to the MegaRAID adapter.
Cont’d
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101
Power Console Plus Icons, Continued
The Clear Configuration icon is shown to the left. Click on this icon to clear the
RAID configuration on the currently selected controller. A confirmation screen
will appear:
Click on OK in the confirmation screen to reset the configuration.
Warning
Choosing Clear Configuration will clear all channels on the
MegaRAID adapter.
Clear Configuration will reset the entire MegaRAID adapter.
If the operating system is located on a drive attached to the
MegaRAID adapter, the system will lock up.
The Adapter Properties icon is shown to the left. Click on this icon to display the
properties of the selected adapter, as shown on the sample screen below:
Cont’d
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MegaRAID Configuration Software Guide
Power Console Plus Icons, Continued
The Physical Drive Properties icon is to the left. Click here to display the
properties of the selected physical drive, as shown on the sample Drive
Properties screen below:
The Logical Drive Properties icon is shown to the left. Click on this icon to
display the properties of the selected logical drive, as shown on the sample
screen below:
The rebuild rate icon is shown to the left. Click on this icon to set the RAID
rebuild drive, reconstruction rate, background initialization, and check
consistency.
Cont’d
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103
Power Console Plus Icons, Continued
The rescan icon is shown to the left. When you click on this icon, the currently
selected MegaRAID controller scans its SCSI channels again to make sure that
all drive configuration information is current.
The display log icon is shown to the left. Click here to display a list of
MegaRAID activities, as shown on the sample screen below:
Note: When running under Windows NT or Windows 2000, Power
Console Plus logs all messages to RAID.LOG. RAID.LOG is created in the
same directory where Power Console Plus runs. Information is logged only
when Power Console Plus is active. Power Console Plus does not log anything
to the Windows NT or Windows 2000 event log.
The Exit icon is shown to the left. Click on this icon to quit Power Console Plus.
The Help icon is shown to the left. Click on this icon to display information
about Power Console Plus.
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Power Console Plus Menus
Main Menu Options The Power Console Plus main menus are:
Option
Configuration
Adapter
Physical Drv
Logical Drv
Progress
Help
Description
Choose this option to select the Power Console Plus Wizard to
configure the RAID system.
Choose this option for adapter-related functions. You can
configure logical drives, enable the speaker, toggle object
identification, turn the performance monitor on or off, and
display the toolbar by selecting an item from this menu.
Choose this option to rebuild, and display the properties of the
physical drives.
Choose this option to create, delete, initialize, display the
properties of, and check parity of logical drives.
Choose this option to view the progress of a disk rebuild,
diagnostic, initialization, parity check, reconstruction or to
view the performance monitor.
Choose this to display information on Power Console Plus.
Configuration Menu
The Configuration menu is shown below.
Cont’d
Chapter 6 Running Power Console Plus
105
Configuration Menu, Continued
Wizard
Choose Wizard to configure arrays of physical drives and the logical drives. The
following appears:
Choose Custom or Automatic array configuration.
Automatic Configuration If you choose Automatic, the Wizard examines the system and
automatically configures an optimal RAID system. Select Automatic and click
on <Next>. A screen such as the following displays:
Cont’d
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MegaRAID Configuration Software Guide
Configuration Menu, Continued
Custom Configuration If you choose Custom, you can determine the configuration. Select
Custom, and click <Next>. A screen such as the following screen displays:
Highlight the drives you want to configure and click on Add to Array to add
drives to the configuring array. You cannot add a drive to an existing array
while running the Configuration Wizard.
Click on Add Spare to add Hot Spare drives.
Click on Accept Array if you approve of the configuration.
Click on Reclaim to clear the last configured array.
Click on Next to accept the configuration. Follow the instructions on the screen
to complete the RAID configuration process.
Display
Choose this option to display the current RAID system configuration.
Print
Choose this option to print the current RAID system configuration.
Cont’d
Chapter 6 Running Power Console Plus
107
Configuration Menu, Continued
Save
Choose this option to save the current RAID configuration to a hard disk drive
or floppy drive.
Load
Choose this option to load a previously saved RAID configuration. The
following screen appears. Select the correct directory path and type the
configuration filename.
Clear Configuration Choose this option to erase the current RAID configuration. After choosing
this option, you must configure a new RAID array. A warning message appears
when you select this option:
Clear configuration will destroy the currently selected
adapter logical drive configuration.
Click on OK to continue.
Exit
108
Choose this option to quit Power Console Plus.
MegaRAID Configuration Software Guide
Adapter Menu
The Power Console Plus Adapter menu is shown below:
Adapter Options The options on the Adapter menu are described below.
Option
Update
Firmware
Flush Cache
Performance
Monitor On/Off
Properties
Diagnostics
Rebuild Rate
Rescan
View Log
Enclosure
Management
Alarm Control
Description
Choose this option to download a new version of the MegaRAID firmware.
This option may not be available.
Select this option to force the MegaRAID controller to send the contents of
cache memory to the logical drives.
Select this option to display a graphical representation of the performance of a
logical drive. You can select a bar graph or a line graph. This option can only
turn this feature on or off.
Select this option to display the adapter properties, including the firmware
and BIOS versions, the rebuild rate, cache memory size, and SCSI
specification type.
This option is not yet available.
Choose this option to change the rate at which drives are rebuilt. See page
111 for additional information about rebuilds.
Select this option to scan the SCSI channels again.
Select this option to display a MegaRAID event log.
To view the fan temperature, and voltage information for the enclosure
cabinet, the cabinet must support SAF-TE.
Select this option to enable or disable the system alarm when a drive failure
occurs.
Cont’d
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109
Adapter Menu, Continued
Update Firmware Choose this option to update the MegaRAID firmware. The following screen
appears. Type the name of the firmware file and select the correct directory path.
This option has not been implemented yet.
Flush Cache
If the MegaRAID system must be powered down rapidly, you must flush the
contents of the cache memory to preserve data integrity.
Performance Monitor Select Performance Monitor On from the Adapter menu to display a
graphic representation of drive performance. Select Performance Monitor Off to
turn off this utility. A sample Performance Monitor screen follows. You can
choose logical drives, the type of graph, and the screen arrangement from the
Performance Monitor menus.
Cont’d
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MegaRAID Configuration Software Guide
Adapter Menu, Continued
Properties
Select this option to display the adapter properties. A screen like the following
appears:
Rebuild Rate
Choose Rebuild Rate to select the amount of system resources to be devoted to
rebuilding failed disk drives. The higher the percentage of system resources
devoted to drive rebuilds, the lower the percentage of system resources devoted
to RAID operations and the more degraded the system will become. The
following screen appears. Click on the slider to select the percentage of system
resources to devote to the disk rebuild.
The higher the percentage, the more computing power is devoted to the rebuild.
Choose a low percentage to minimize system performance problems.
Rescan
Choose this option to scan all SCSI channels again to update the status of all
attached SCSI devices.
Cont’d
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111
Adapter Menu, Continued
View Log
Select this option to display the MegaRAID event log. A screen such as the
following appears:
Enclosure Management Click on an icon to display the cooling fan, power supply, or
temperature for each drive enclosure.
Cont’d
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MegaRAID Configuration Software Guide
Adapter Menu, Continued
Enclosure Management Icons The status of the power supply, fans, and temperature for SAFTE compliant subsystems appears when you click on one of the icons:
Icon
Description
Displays the current status of the power supply in the
enclosure for the selected subsystem.
Displays the current status of the cooling fans in the
enclosure for the selected subsystem.
Displays the current temperature of the enclosure for the
selected subsystem.
Alarm Control The alarm generates a beeping sound when one or more disks fail. The sound
continues until Silence Alarm is selected. After a rebuild finishes, a beep signals
that the rebuild is done. Choose Silence Alarm at this time to silence the alarm.
The alarm settings are:
Setting
Enable/
Disable
Alarm
Silence
Alarm
Description
Enables the alarm. If Disable Alarm appears, the alarm is enabled. If Enable Alarm
appears, the alarm is disabled. When Enable Alarm is set, a beeping sound occurs
even when all logical drives are online and there are no failed disks after a hot spare
rebuild completes. Use the Silence Alarm function to stop the alarm. The normal
setting should be Enable Alarm.
Stops the alarm if it is currently beeping. If the alarm is not beeping, it has no effect.
There is no normal setting. It acts as a temporary switch.
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113
Physical Drive Menu
The Power Console Plus Physical Drive menu is:
Rebuild
Choose the Rebuild option to rebuild one or more failed disk drives. Follow the
instructions on the screen. Select Abort Rebuild to stop the rebuild process at
any time. The drive will revert to its original status before the rebuild began.
A RAID 1, 3, or 5 configuration has built-in redundancy. If a drive in a RAID
group fails, the RAID subsystem continues to work but no additional
redundancy is provided. Another drive failure will bring the system down. But
the failed drive can be replaced and added into the RAID system by rebuilding
the drive. Select Rebuild to perform this function. The rebuild process can take
place while the RAID system is still running, although performance may be
slightly affected.
Format
Choose this option to low-level format one or more physical drives. A physical
drive can be formatted if it is not part of a configuration and is in a Failed or
Ready state. Since most SCSI drives are factory formatted, you should format a
drive only if the drive:
•
•
was not low-level formatted at the factory, or
has an excessive number of media errors.
Do not use Format to erase information or partitions on a SCSI drive. That
information is erased when you initialize the logical drive(s).
Update Drv Firmware This option has not been implemented yet.
Cont’d
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MegaRAID Configuration Software Guide
Physical Drive Menu, Continued
Change Status
Choose this option after you have selected a physical drive. The following
options appear:
Option
Make Online
Fail Drive
Spin Up
Spin Down
Make Hot Spare
Description
Choose this option to bring the selected physical drive online.
Choose this option to take the selected physical drive offline.
Choose this option to allow a period of time for the selected physical
drive to reach operational speed. This usually takes a few seconds.
Choose this option to allow a period of time for the selected physical
drive to stop spinning before taking the drive offline. This usually takes a
few seconds.
Choose this option to designate the selected drive as a hot spare. Hot
spares are automatically brought online to replace failed disk drives. Hot
spares are physical drives that are powered up along with the RAID
drives and usually are placed in a standby state.
Hot spares can be used for RAID levels 1, 3 and 5. Click on the drive
icon of the drive to be made the hot spare. The drive to be made a hot
spare must have the same or greater capacity than the other
drives in the RAID array.
Properties
Choose this option to display the properties of the selected physical drive. A
screen such as the following appears:
Chapter 6 Running Power Console Plus
115
Logical Drive Menu
The Power Console Plus Logical Drive Menu is shown below:
Initialize
Choose this option to initialize the selected logical drive or drives. A screen such
as the following appears to show progress. Initialization may take a long time.
Warning
Power Console Plus allows you to initialize a drive at any time. Make sure that
the drive being initialized does not have live data. All data will be lost.
Cont’d
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MegaRAID Configuration Software Guide
Logical Drive Menu, Continued
Check Consistency Choose this option to verify the redundancy data in logical drives that use
RAID levels 1, 3, or 5.
Select the drives to be checked and choose Check Consistency from the Logical
Drive menu. You are prompted to run parity checking. The following appears:
Parity Checking Selected Device(s)?
Click on OK to perform parity checking.
If a discrepancy is found, it is automatically corrected, assuming that the data is
correct. However, if the failure is a read error on a data drive, the bad data block
is reassigned with the generated data.
Properties
Choose Properties to display the properties of the selected logical drive. A
screen such as the following appears. Each logical drive can be displayed by
selecting the Previous or Next buttons.
Change Config The following appears when you select Change Config. You can change Cache
Policy, change Read Policy, change Write Policy, change the RAID level, select
a Virtual Size, and Add Capacity via this menu.
Note: The Enable Virtual Sizing feature will not take effect until the next
reboot. Virtual sizing is not supported in Windows 2000.
Cont’d
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117
Logical Drive Menu, Continued
Change Cache Policy Click on Cache to change the cache memory policy. You can choose Direct
or Cached.
Change Read Policy Click on Read to change the Cache Read Policy. You can choose Normal,
Read Ahead, or Adaptive Read Ahead.
Read Policy
Normal
Read Ahead
Adaptive
Read Ahead
Description
The MegaRAID controller does not use read-ahead for the selected
logical drive.
The MegaRAID controller uses read-ahead for the selected logical
drive. This is the default setting.
The MegaRAID controller begins using read-ahead if the two most
recent disk accesses occurred in sequential sectors. If all read
requests are random, the algorithm reverts to Normal. However, all
requests are still evaluated for possible sequential operation.
Change Write Policy Click on Write to change the Cache Write Policy. The settings are:
Setting
Write Back
Write Thru
Virtual Sizing
Description
The MegaRAID controller sends a data transfer completion signal to the host
when the controller cache has received all the data in a transaction.
The MegaRAID controller sends a data transfer completion signal to the host
when the disk array has received all the data in a transaction. This is the
default setting. Write-through caching has a data security advantage over
write-back caching. Write-back caching has a performance advantage over
write-through caching. If running Windows NT, you should not use writeback for any logical drive that is to be used as a Novell NetWare volume.
Click on this option to enable or disable the Virtual Sizing Option. See Chapter
9 for more information about virtual sizing.
Note: Virtual sizing is not supported in Windows 2000.
Add Capacity Click on this option to add additional drive(s) to the specified logical drive. First
click on the drive icon for each physical drive to be added. Then click on the
icon for the logical drive to be added to. Then select Add Capacity from the
Logical Drive menu. Click on OK when prompted to confirm the new logical
drive configuration. You can also select a new RAID level for the selected
logical drive when the Select RAID Level prompt appears. You can select any
RAID level that is not grayed out. Click on OK to complete the operation. See
Chapter 9 for more information about online capacity expansion.
Note: Virtual sizing is not supported in Windows 2000.
Important
The physical drive must be in the READY state before it can be
added to a logical drive.
No operation can be started while a drive is being reconstructed.
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Progress Menu
The Power Console Plus Progress menu is shown below. The features on this
menu are available only when a rebuild, initialization, diagnostics test, check
consistency, or drive reconstruction are in progress.
Options
The Progress menu options are:
Option
Rebuild Progress
Diagnostics
Progress
Initialize
Progress
Check
Consistency
Progress
Reconstruction
Progress
Performance
Monitor
Description
Choose this option when a drive rebuild is in progress to display
an indicator of how far the rebuild has progressed.
Choose this option when a diagnostics test in progress to display
an indicator of how far the test has progressed.
Choose this option when a drive initialization is in progress to
display an indicator of how far the initialization process has
progressed.
Choose this option when a check consistency routine is in
progress to display an indicator of how far the routine has
progressed.
Choose this option when a drive reconstruction is in progress to
display an indicator of how far the reconstruction has progressed.
Choose this option to display the performance monitor screen.
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119
Securing Power Console Plus under Windows NT or Windows 2000
To secure Power Console Plus utility while running in Windows NT:
Step
1
2
3
4
5
6
7
Action
Log in as the Administrator.
Run File Manager.
Select the path containing the Power Console Plus executable.
Pull down the Security menu in File Manager and choose
PERMISSIONS.
When the permission dialog box appears, assign the LIST permission
to all Groups except Administrator, Backup Operators, System, and
Creator Owner.
In the Permission dialog box, select Replace Permissions On
Subdirectories to apply the permissions that you are setting here to the
subdirectories as well.
After you have set Permissions, choose OK and exit file manager. Now
log in as a guest and make sure the permission changes have been
saved.
If you follow these instructions, only those who are part of the selected groups
can delete, copy, move, or execute any Power Console Plus file.
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7
Configuring Arrays and Logical
Drives
Step 1 Start Power Console Plus
Double-click on the Power Console Plus icon or click on the Start button, select
the Program group and choose Power Console Plus from the MegaRAID group.
The Power Console Plus screen appears:
Drive States
The state of each physical drive is shown to the right of the SCSI ID or array.
The drive states are:
Drive State
Online
Code
ONLIN
Ready
READY
Hot Spare
HOTSP
Failed
Rebuilding
FAILED
REBUILD
Description
The drive is online, is part of a configured logical drive,
and is functioning normally.
The drive is functioning normally but is not part of a
configured logical drive and is not a hot spare.
The drive is powered up and is ready to use. It is
available as a spare drive in case an online drive fails.
The drive is out of service because it failed.
The drive is being rebuilt with data from a failed drive.
Cont’d
Chapter 7 Configuring Arrays and Logical Drives
121
Step 1 Run Power Console Plus, Continued
Power Console Plus Logical Devices The Logical Device window on the bottom half of the
screen displays the current adapter and the global hot spare pool for this adapter.
All configured arrays, logical drives, and hot spares can be displayed here.
Click on the Logical View button (on the right of the screen) to display the
configured logical drives. Click on Physical View to display the configured
physical drives.
Displaying Adapter Properties Click on the Adapter menu, then click on Properties to display
the adapter properties.
Displaying Physical Drive Properties Double-click on the icon that represents the physical drive
to display the properties of the selected physical drive.
Displaying Logical Drive Properties Double-click on the icon that represents the logical drive to
display the properties of the selected logical drive.
Step 2 Choose an Adapter
Choose the adapter to be configured. If the current adapter is not the adapter to
be configured, click on the Adapter box and select the correct adapter.
Warning
If running Windows NT, the adapter order can be reversed. For example, if
you have two MegaRAID adapters installed in the host system, adapter 1
becomes adapter 2, and adapter 2 becomes adapter 1. This is critical if the
operating system is on a drive attached to one of the MegaRAID adapters.
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MegaRAID Configuration Software Guide
Step 3 Run the Wizard
If the RAID system is already up and running and you would like to reconfigure
the adapter, choose Rescan from the Adapter menu to make sure that Power
Console Plus recognizes all physical drives. Choose Wizard from the
Configuration menu. The Wizard screen appears as follows. Choose Custom or
Automatic. Click on the Next button.
Types of Configuration You can choose either Custom or Automatic configuration.
Type
Custom
Automatic
Description
You define the arrays and logical drives, and set parameters.
Select this option if you have specific requirements for the RAID
system.
Power Console Plus Wizard automatically defines arrays and
logical drives, and automatically sets all parameters.
Click on the Redundancy box to instruct the Wizard to
automatically configure redundant arrays when possible.
Select this option to configure an optimal RAID system.
Automatic Configuration If you chose automatic configuration, the proposed RAID
configuration is displayed. The drive SCSI ID follows the drive icons. The
current adapter with all arrays, logical drives, and hot spares, is shown in the
Logical Devices window. Each logical drive has a label (such as LD1), the
RAID level, and the drive capacity. Spanned arrays have hyphenated array
numbers (for example: LD1-1). Click on Finish to complete the configuration
process. You can click on Back if you want to change anything.
Undoing the Array Click on Reclaim to undo the array. It may be easier to click on Cancel and
begin the configuration process again. An array can be reclaimed only if no
logical drives are defined in the array. Undo the logical drive on the Logical
Drive Definition screen, click on Back to display the Array Definition screen,
select the array to be reclaimed, and click on Reclaim.
Cont’d
Chapter 7 Configuring Arrays and Logical Drives
123
Step 3 Run the Wizard, Continued
Displaying Logical Drive Properties To display the logical drive properties, double-click on the
logical drive icon.
Displaying Physical Drive Properties To display the physical drive properties, double-click on
the drive icon.
Custom Configuration If you choose Custom Configuration, the Array Definition Screen
appears, as shown below:
The new array is displayed in the Logical Devices window. The drive SCSI ID
follows the drive icons. The current adapter with all arrays, logical drives, and
hot spares, is shown in the Logical Devices window. Each logical drive has a
label (such as LD 0), the RAID level, and the drive capacity. Spanned arrays
have hyphenated array numbers (for example: LD0-1).
Cont’d
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MegaRAID Configuration Software Guide
Step 3 Run the Wizard, Continued
Custom Configuration, Cont’d
Displaying Logical Drive Properties To display the logical drive properties, double-click on the
logical drive icon.
Adding Physical Drives to a New Array You can assign physical drives to the new array by
selecting any combination of physical drives in the Ready status and clicking on
the Add to Array button.
Displaying Physical Drive Properties To display the physical drive properties, double-click on
the drive icon.
Adding a Physical Drive to an Existing Array You cannot add a physical drive to an array
while running the Configuration Wizard.
However, you can add a physical drive to an array from the Power Console Plus
main screen by clicking on a physical drive icon (the drive must be in the Ready
state), holding down the left mouse button, dragging the drive icon to the icon
that represents an array, and then releasing the mouse button. Logical View must
be selected before you can do this. See Chapter 6 for more information.
Removing a Physical Drive from an Array You can selectively remove hard drives from an
existing array only on the main menu. Right click on the drive you want to
remove and select Remove. You may have to change the RAID level to remove
the hard drive.
While running the Configuration Wizard, you can remove a physical drive from
an array by changing the array configuration, selecting the array, and then
clicking on the Reclaim button.
However, if the array has not yet been configured, you can click on the drive
icon in the new array and then click on Reclaim. This only works if the new
array has not been accepted.
You cannot reclaim an array if a logical drive has already been defined in the
array.
Assigning Hot Spares Select the icon for any physical drive in the Ready state and click on Add
Spare to add this drive to the Global Hot Spare Pool. Click on the Next button
when done.
Adding Physical Drives Choose the icons for any physical drives in the Ready state and click on
Add to Array to assign physical drives to the new array.
Cont’d
Chapter 7 Configuring Arrays and Logical Drives
125
Step 3 Run the Wizard, Continued
Custom Configuration, Cont’d
Finishing
Click on the Accept Array button when the configuration is complete. A new
array screen appears. Assign physical drives as discussed above. When finished,
click on the Next button.
Defining Logical Drives The Logical Drive Parameter screen appears next, as shown below:
This screen displays the logical drive(s) to be defined. You can specify the
RAID level and size. You can also span arrays and set advanced parameters.
In the Logical Drive window, all arrays on the current adapter and the global hot
spare pool are displayed. The logical drives are labeled as New or LD0, LD1,
LD2, LD3, LD4, LD5, LD6, or LD7.
Define Logical Drives Define all logical drives to be configured in the new array. Do not create
drives that span the current array and another array. Make sure the Span Array
box is not checked.
Cont’d
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MegaRAID Configuration Software Guide
Step 3 Run the Wizard, Continued
Custom Configuration Defining Logical Drives, Cont’d
Step
1
2
3
Action
Specify the RAID level by clicking on the RAID Level dropdown menu on the Logical
Drive Parameter screen and selecting a RAID level. The Wizard will not let you
configure an invalid RAID level. See the MegaRAID hardware guide for your board for
information about the requirements for each RAID level.
Set the size either by accepting the default or by clicking in the Size box and typing a
smaller size. If you specify a smaller size, there will be room in the array for additional
logical drives. Creating multiple logical drives in the same array disables FlexRAID, so
you cannot change RAID levels or add capacity. Do not mix redundant and nonredundant logical drives in the same array.
Click on the Advanced button to set the stripe size, read policy, write policy, virtual
sizing, and cache policy. Click on the respective dropdown menus to display the choices
for each parameter. When finished, click on the OK button.
Note: If you use Power Console Plus to configure an array on a NetWare server,
you cannot use Writeback as the write policy.
4
Click on Accept when the logical drive parameters are set.
5
The next logical drive appears. If space is still available in the current array, the new
logical drive will appear in the array. Define any additional logical drives in the current
array that will not be spanned. The Wizard will continue to create logical drives for the
same array until there is no more space available in the array or until there are 40 logical
drives in the array (if you have a controller that supports 40 logical drives: Enterprise
1600, Elite 1600, or Express 500.) Continue to define logical drives as described above.
Spanning
Click on the Span Arrays box to create a logical drive that spans across all defined arrays
depending on the firmware’s span depth. An array that encompasses both spanned arrays (labeled
something like A1-1) appears in the Logical Devices window. The capacity in the Size box
increases to reflect the spanned arrays.
Undoing an Array
When you are running the Configuration Wizard, you can always remove the last logical drive that
was created by clicking on the Undo button. You cannot undo an array after you have finished
running the Configuration Wizard.
6
When all logical drives are defined for the selected adapter, click on Next.
7
The Preview Configuration screen appears. All arrays, logical drives, and hot spares are
shown for the current adapter in the Logical Devices window.
All physical drives with their SCSI ID, Ready, or Spare status are shown in the Physical
Devices window. Click on Finish to accept the configuration as displayed. Click on Back
to return to the Logical Drive Definition screen to redefine logical drive parameters.
8
After you click on Finish, a dialog box prompts you to initialize. This option is
recommended.
9
Add newly configured logical drives to the NT Disk Administrator.
Chapter 7 Configuring Arrays and Logical Drives
127
Step 4 Save Configuration and Initialize
Save Configuration Click on OK when prompted to save the configuration. The configuration is
saved to NVRAM and to the array.
Save to Binary File The configuration parameters have been saved to NVRAM, but it is also a
good idea to save the configuration to a binary file. Choose Save from the Power
Console Plus Configuration menu. Type a filename and directory path for the
Save file. The file extension should be .CFG. Click on the Read Only checkbox
to make the binary file read-only. Click on OK when prompted to save the file.
Print the Configuration Print the configuration by choosing Print from the Power Console Plus
Configuration menu. Keep a copy of the configuration for your records. This is
important if you ever need to call LSI Logic Corporation Technical Support or
replace a failed adapter.
Initialize Logical Drives Select the correct adapter from the Adapter box. Select the logical drives
to be initialized. Choose Initialize from the Logical Drive menu.
The Initialize screen has a separate window for each logical drive. There is a bar
graph that displays the progress of the initialization for each logical drive.
Click on Abort if you must stop the initialization.
Repeat this process for each adapter in the system.
Check Rebuild Rate Choose the correct adapter from the Adapter box. Choose Rebuild Rate
from the Adapter menu. You can change the rate by clicking on the slider and
moving it right or left.
If there is more than one adapter in the system, click on each adapter and check
the rebuild rate.
The rebuild rate is not affected when you clear the configuration.
Exit Power Console Plus Choose Exit from the Configuration menu to quit Power Console Plus.
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8
Assigning Hot Spares
Global Hot Spares
To make a hot spare, click on a physical drive that is in Ready status. All
physical drives appear in one of the Physical Devices windows.
If you inadvertently click on a drive icon for a physical drive that you do not
want to make a hot spare, click on it again to deselect the drive.
Drag and drop the selected physical drive into the global hot spare pool.
Reclaiming Hot Spares While Running the Wizard
Select one or more hot spares and click on the Reclaim button on the Array
Definition screen. The selected hot spare physical drives are changed to Ready
drive status.
Reclaiming Hot Spares During Normal Operation
To change a drive from a hot spare to a drive in the Ready state, Select the drive
and click the right mouse button. Choose Tools and choose Fail Drive. The drive
will return to the Ready state.
Chapter 8 Assigning Hot Spares
129
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MegaRAID Configuration Software Guide
9
Virtual Sizing and Online Capacity
Expansion
Virtual Sizing is a unique feature designed by LSI Logic. With virtual sizing, the
Administrator can use the disk space of a hard drive that was just added to an
existing disk array, without rebooting the operating system.
Virtual Sizing supports Windows NT 4.x, Windows 2000 (only supported for
Basic Disk), and NetWare 4.x, 5.x only.
Location and Enabling
The Virtual Sizing option is found in the Boot Up Configuration Manager. This
option is in the Objects menu, under Logical Drive and View/Update
Configuration. Enable this option after you configure a logical drive and before
you exit the Boot Up Configuration Manager.
The ability to use this feature for an existing logical drive depends on the
firmware version. Older firmware versions may not allow you to enable this
feature once you have saved the configuration.
The Virtual Sizing option is in Power Console Plus versions 1.06 and higher.
When you select this option in Power Console Plus, you must restart the
operating system before Disk Administrator will see the virtual size.
Theory of Operation
When the operating system boots, it looks for storage devices such as HDD,
CD-ROMs, and tape drives. The controller reports these devices to the operating
system, except for the HDD. The controller reports a false disk capacity for the
configured Logical Drive. The value reported to NT’s Disk Administrator is
approximately 80GB for older firmware, and 500GB for newer firmware.
Because Disk Administrator recognizes a virtual storage capacity of 80 or 500
GB, the user or Administrator can create logical drive partitions in the free space
on the virtual disk. In other words, the capacity is already present before the
HDD is added, so you do not need to shut down and reboot the operating system
to see the added capacity.
Chapter 9 Virtual Sizing and Online Capacity Expansion
131
MegaRAID Drive Characteristics
Mraid35x.sys Driver versions 2.19 and above are capable of reporting newly
configured logical drives to Windows NT Disk Administrator without rebooting
the operating system.
After creating the drive arrays and logical drives in Power Console Plus,
configure the new logical drive(s) in the NT Disk Administrator. If you’re not
familiar with NT Disk Administrator, refer to the Windows NT Operations
manual.
There are rules that need to be followed for proper operation:
•
•
•
If the controller’s configuration is reset, any logical drives created after the
reset will not be seen properly, and the operating system must be rebooted.
If you delete a logical drive, the capacity of the next logical drive that you
add will not be seen properly in Disk Administrator. Disk Administrator
will see the capacity of the deleted logical drive. You must reboot the
operating system to display the proper capacity of the newly configured
logical drive.
If Virtual Sizing is enabled during the creation of the logical drive, the
operating system must be rebooted. Virtual Sizing is reported to Disk
Administrator by the firmware, not the driver. The driver reports the size;
however, it is valid only on operating system load time.
Deleting Logical Drives
Logical drives can be deleted, but only the last logical drive that was created can
be deleted. Once a logical drive is deleted, the capacity of the next logical drive
that you add will not be seen correctly in Disk Administrator until the operating
system is rebooted.
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Adding Capacity under Windows NT 3.5x, 4.x and Windows 2000
Adding capacity under NT 3.51 and 4.x You can add capacity or a HDD to an existing array
only under the following conditions:
•
•
•
•
•
the Virtual Sizing option is enabled in the "Boot Up Configuration Utility"
the FlexRAID Power Fail Option needs to be enabled
only one logical drive can be configured per array (not per controller)
drives can be added to RAID levels 0, 3, or 5 only
new drive(s) have been added to the SCSI bus or subsystem
Adding capacity under Windows 2000 You can add capacity or a HDD to an existing array only
under the following conditions:
•
•
•
•
•
the FlexRAID Power Fail Option needs to be enabled
only one logical drive can be configured per array (not per controller)
drives can be added to RAID levels 0, 3, or 5 only
new drive(s) have been added to the SCSI bus or subsystem
disk cannot be dynamic; this feature supports Basic Disk only
Adding Hard Disk Drives under Power Console
Step
1
2
3
4
5
6
7
8
Action
On the main menu screen, verify that the drive(s) that were added display on
the appropriate channel.
On the Logical Drive tool bar above the channel display, right click on the
Logical Drive icon.
From the pull down menu select Advanced Menu, then Add Drive.
The Enhanced Logical Drive window appears.
Click on the drive(s) you want to add to the existing array.
Note: There is a limit of eight physical drives in an array. Stripe size
cannot be changed, even though it displays on this screen.
Select RAID Level from the top part of the screen to change RAID levels.
Click on the Apply button and the array will go into a rebuild state.
After the rebuild is complete, the additional space must be added to the NT
Disk Administrator.
Cont’d
Chapter 9 Virtual Sizing and Online Capacity Expansion
133
Adding Capacity under Window NT 4.x, and Windows 2000, Continued
Adding Hard Disk Drives using Power Console Plus vX.X
On the main Power Console Plus screen, verify that the drive(s) that were added
display on the appropriate channel. There are three ways you can add a HDD to
an existing array. The first method is:
Step
1
2
3
4
5
Action
Highlight the drive(s) you want to add, and the logical drive to add them to.
On the Menu Bar, select Logical Drive.
Select Change Configuration.
Select Add Capacity. A menu displays for you to select the RAID level.
Select a RAID level and click on the Apply button. The array will begin
reconstructing.
The second method is:
Step
1
2
3
4
5
Action
Highlight the drive(s) you want to add, and the logical drive to add them to.
Right click on the logical drive.
Select Advanced Menu.
Select Add Drive.
Select a RAID level and click on the Apply button. The array will begin
reconstructing.
The third method is:
Step
1
2
3
Action
Highlight the drive(s) you want to add, and the logical drive to add them to.
Click on highlighted drive(s) and drag them to the logical drive you want to
add them to.
Select a RAID Level and click on the Apply button. The array will begin
reconstructing.
Applying additional space to NT Disk Administrator After the array rebuilds, go to the Disk
Administrator Utility. You should see at least one HDD size of 81917 MB or
500 GB, and there should be a logical drive created before the new drive(s) are
added. There are two ways to apply the new space to Disk Administrator:
•
•
Step
1
2
2
3
add a new logical drive using - “Create” or “Create Extended Partition”, or
add a new Logical Drive using “Extend Volume Set” (this is available only
when using the NTFS format; it is not available under FAT.)
Action
Click on existing partition.
Hold down the shift key and right click on available space.
From the pull down menu, select Extend Volume Set.
Enter the total space of both partitions, and the total size of the volume.
For example, if the first partition is 500MB, and the new capacity of the
array is 1000MB, then the volume space entered would be 1500MB.
Note: NT will make you reboot when you exit Disk Administrator.
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MegaRAID Configuration Software Guide
Adding Capacity under NetWare 4.x and 5.x
Adding capacity or adding a HDD to an existing array You can add capacity or a HDD only
under the following conditions:
•
•
•
•
Note:
the Virtual Sizing option is enabled in the "Boot Up Configuration Utility"
the FlexRAID Power Fail option needs to be enabled
only one logical drive can be configured per array (not per controller)
drives can be added to RAID levels 0, 3, or 5 only
See the readme file on the CD for information about special cases.
Adding a new drive to NetWare using Megamgr.nlm
Step
1
2
3
4
5
6
7
8
9
10
11
12
Action
Physically connect your new drive(s) to the SCSI bus or subsystem.
From the NetWare System Console, load Megamgr.nlm.
On the Main Menu, select Adapter if you have more then one adapter in the
system.
On the Main Menu, select Configure.
Select Add/View Configuration.
Make sure the drive appears in the View/Add Configuration option. The
new drive should be at a READY status.
Return to the Main Menu.
Select Advanced Menu.
Select Reconstruction Of Logical Drive.
Select the logical drive you want to contain the new drive(s).
The system will scan the channels for the new drive(s) and display a menu
to reconstruct the logical drive.
Highlight the new drive(s) using the up or down arrow keys and press the
space bar to select the drive(s). The system will reconstruct the new drive
into the existing array.
When finished, exit or change to NetWare System Console.
Cont’d
Chapter 9 Virtual Sizing and Online Capacity Expansion
135
Adding capacity under NetWare 4.x and 5.x, Continued
Adding new space into the NetWare Volume
Step
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Action
Load INSTALL.NLM.
Highlight the VOLUME OPTIONS (configure, mount, or dismount
volumes).
Press <Enter>.
Press <Insert>.
Highlight the drive that has available space (it should be nearly 81 GB).
Press <Enter>.
Highlight the option Make Segment Part of Another Volume or New
Volume.
Press <Enter>.
Highlight the existing volume that you want to add to, if adding to an
existing volume.
Press <Enter>.
At this point, NetWare will show the rest of the free space of FlexRaid as
81GB.
Press <Enter> to modify the size of the new segment.
Under Disk Segment Parameters, type the size of the new drive to modify
the disk segment size.
After entering the size of the new drive(s), press <Enter>.
Press the F10 key.
Press the F10 key again (to save the new information.)
Press <Esc>.
Highlight Yes to save the changes.
Mount all the volumes.
Additional space is ready to be accessed without rebooting.
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MegaRAID Configuration Software Guide
A
MegaRAID Service Monitor
Power Console Plus does not run as a Windows NT Service. The MegaRAID
Service Monitor runs as a Windows NT service. It logs events to the Application
log (MEGARAID.LOG) under Windows NT.
Power Console Plus Internal Messages Power Console Plus logs the following messages to
RAID.LOG:
Message
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
Message
Power Console Plus has been started again.
An adapter change has occurred.
Notify messages:
drive state change
•
start a reconstruction
•
enclosure alert
•
etc.
•
Begin any operation (initialize, rebuild, etc.) on any physical or
logical drive.
An error occurred during an operation (initialize, rebuild, etc.)
on a physical or logical drive.
Complete any operation (initialize, rebuild, etc.) on any physical
or logical drive.
Successfully abort any operation (initialize, rebuild, etc.) on any
physical or logical drive.
An error occurred while attempting to abort any operation
(initialize, rebuild, etc.) on any physical or logical drive.
Failure to start any operation (such as an initialize) on a logical
drive.
Drive state change for any channel and target.
Configuration file written.
SCSI sense data.
Battery status.
Appendix A MegaRAID Service Monitor
137
MegaRAID Service Monitor
The MegaRAID Service Monitor Program is a Windows NT Service Process. The
monitor program tracks status changes for hardware devices and runs in the
background. It polls the status of the resources connected to the MegaRAID
adapters every 10 to 15 seconds.
The monitor program, MegaService Monitor, can be started automatically the
same time Windows NT starts or you can start it manually after you log into
Windows NT. If installed, this program logs peripheral device activities and
status changes to Event Viewer. Event Viewer logs changes whether Power
Console Plus is running or not. The changes are also stored in View Log, which
records changes only when Power Console Plus is running. Status changes are
stored in the MEGARAID.LOG file.
This filename could be different if the system has been customized. The
contents of the displayable activity log include all status changes and device
activities.
Contents
The filename for the MegaService Monitor is:
•
Installation
138
MEGASERV.EXE
Installation is done through the Power Console Plus Install Shield.
MegaRAID Configuration Software Guide
Event Types
Valid event types recorded in the Log Viewer include:
Event types
Severity
Level
Log Messages
General Events
RAID Monitor Service Ver. # Month,Day, Year
Started
Warning
Adapter # Channel # Target #: Media Error Count= #,
Other Error Count= #
Informational Initial Check Consistency Schedule:
Enable Flag:
# Date: MM/DD/YY Day of Week # Hour of Day: #
Week(s): #
Weeks N is after every N weeks
Weeks 0
All Day of Week ignored
Enable Flag
0
Sunday
1
Monday
2
Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
Warning
Adapter # Logical Drive # is in Checking Consistency
Progress
Informational Adapter # Logical Drive #: Check Consistency is in
PROGRESS # %
Informational Registration Server Alert
Message: REG-SERV Service Started
Informational Registration Server Alert
Message: Register Server Successful
Error
Cannot Allocate Memory Spaces.
Error
No Adapter Found.
Error
Fail to Create Thread megaserv.exe
Error
Service Program Ver X.YZ started
Informational Initial Check Consistency Schedule is rescheduled as:
EnableFlag=0 or 1 Date: MM/DD/YYYY
DayOfMonth=x HourOfDay=yy Weeks=zz
Informational Check Consistency is rescheduled as:
EnableFlag=0 or 1 Date: MM/DD/YYYY
DayOfMonth=x HourOfDay=yy Weeks=zz
Logical Drive Status:
Informational Adapter #: The Number of Logical Drive is changed to
#
Warning
Adapter #: Logical Drive # is Degraded
Informational
Drive Media Errors
Logical drive is
deleted or added
Logical drive is not
optimal or the
logical drive state
changed
Logical drive is not
optimal or the
logical drive state
changed
Logical drive
initialization status
Logical drive
initialization status
Error
Adapter #: Logical Drive # is Offline
Warning
Adapter #:Logical Drive # is in Initialization
Progress.
Adapter #:Logical Drive #: Initialization is OVER
Informational
Physical Drive Status:
Appendix A MegaRAID Service Monitor
139
Event types
Physical drive state
changed
Physical drive state
changed
Physical drive state
changed
Physical drive state
changed
Physical drive state
changed
Physical drive state
changed
Physical drive state
changed
Physical drive state
changed
Physical drive
format status
Physical drive
format status
Physical drive error
or the error
count differs from
the last check
Temperature is
over threshold or
back to normal
Fan is not
operational or its
status changed
since last check
Power supply is
not operational or
its status changed
since last check
Severity
Level
Informational
1.Adapter #: Logical Drive # is Optimal
Warning
Adapter #: Logical Drive # is Degraded
Warning
Adapter #: Logical Drive # is Offline
Informational
2. Physical Drive # is changed to READY
Error
Physical Drive # is changed to FAILED
Informational
Physical Drive # is changed to REBUILD
Informational
Physical Drive # is changed to Hotspare
Warning
Physical Drive # is changed to Absent
Warning
Physical Drive # is in Format Progress.
Informational
Physical Drive #: Format over
Warning
Warning
Physical Drive Error:
Media Error Count = # Other Error Count =#
Display the last seven SenseData structure entries.
Each SenseData structure has 14 or 16 bytes.
For SAF-TE-compliant boxes:
Informational Adapter # Channel # Target # [ Fans= #, Power
Supplies= #, Slots= # & Temperature Sensors= # ]:
SAFE-TE Information
Warning
Temperature Sensor # is ?? Degree: Out of Range
Warning
Temperature Sensor # is Normal
Informational Status of Fan # =0x##: Operational
Warning
Status of Fan # =0x##: Malfunctioning
Warning
Status of Fan # =0x##: Unknown Status
Warning
Status of Fan # =0x##: Status Not Reportable
Informational
Warning
Warning
Warning
Warning
Warning
Warning
Warning
Device slot ID
number changed
Battery backup
module/pack
missing or added
140
Log Messages
Warning
Warning
Warning
MegaRAID Configuration Software Guide
Status of Power Supply #=0x##: Operational and On
Status of Power Supply #=0x##: Operational and Off
Status of Power Supply #=0x##: Malfunctioning and
Commanded On
Status of Power Supply #=0x##: Malfunctioning and
commanded Off
Status of Power Supply #=0x##: Not Present
Status of Power Supply #=0x##: Present
Status of Power Supply #=0x##: Unknown Status
Status of Power Supply #=0x##: Status Not
Reportable
Device Slot # ID=#:
The associated physical drive ID has changed.
Physical Drive # is Removed/Power Off. Physical
Drive # is Added/Power On.
These messages are not currently available.
Battery Status:
Battery Backup Module is Missing
Battery Backup Module present but Battery Backup
Pack is Missing
Event types
Battery
temperature out of
range or back to
normal
Battery Voltage
low or normal
Battery fast
charging in
progress/failed/
completed
Number of battery
charge cycles
Since the monitor
program
scans the bus
periodically, it
checks for devices
and compares with
the previous
results. If not a
match, it logs
messages.
Severity
Level
Informational
Warning
Informational
Log Messages
Battery Backup/Pack present
Battery Temperature OUT OF RANGE
Battery Temperature GOOD
Warning
Informational
Warning
Warning
Informational
Battery Voltage LOW
Battery Voltage GOOD
Battery Fast Charging IN PROGRESS
Battery Fast Charging FAILED
Battery Fast Charging COMPLETED
Informational
“No of Charge Cycles = ??”
Warning
Warning
Physical drive is Removed/Powered Off
Physical drive is Added/Powered On
The Power On/Off feature is not implemented in the
current version because the monitor program only
scans the bus once at the beginning of program
execution. It cannot detect later device changes.
Cont’d
Appendix A MegaRAID Service Monitor
141
Event Types, Continued
Event Message IDs Each event log message has its unique ID number. For general events, the
event message ID is three digits:
ID Fields
First digit
last two digits
Test Type ID
Status
1
Logical Drive Status
2
Physical Drive Status
3
Physical Drive Error Count
4
SAF-TE Box Status
5
Battery Status
Two digit event code
Event Message IDs for Test Events For test-related events, the event message ID is four digits:
ID Fields
First digit
Second digit
last two digits
Note:
142
Test Type ID
Status
1
Logical Drive Status
2
Physical Drive Status
3
Physical Drive Error Count
4
SAF-TE Box Status
5
Battery Status
Severity Level
1
Informational
2
Warning
3
Error
Two-digit event code
There may be slight variations in these message contents because
the MEGASRV.EXE and MEGACTRL.EXE utility programs are
updated frequently.
MegaRAID Configuration Software Guide
Index
#
#Stripes, 19, 23, 26, 74, 78, 81
A
Activate Channel, 65
ADAC Configuration Manager Adapter menu, 11
ADAC Configuration Utility, 5
Adapter and Server, 105
Adapter Menu, 115
Adapter option, 63
Configuration Utility, 10
Adapter Properties, 46
Adapter Properties icon, 108
Adapter Selection, 57
Adaptive, 20, 24, 27, 54, 75, 82
Adaptive Read Ahead, 124
Add Capacity, 124
Adding a Physical Drive to an Existing Array, 131
Adding Capacity under NetWare 3.12 and 4.x, 141
Adding a new drive to NetWare using
Megamgr.nlm, 141
Adding capacity or adding a HDD to an existing
array, 141
Adding new space into the NetWare Volume, 142
Adding Capacity under Windows NT 3.5x, and 4.x,
139
Adding additional space to NT Disk
Administrator, 140
Adding HDDs under Power Console Plus (PC)
version 3.x, 139
Adding HDDs under Power Console Plus (PCP)
version 1.x, 140
Adding Physical Drives, 131
Adding Physical Drives to a New Array, 131
Alarm, 115
Alarm Control, 10, 46, 119
Assigning Hot Spares, 131, 135
Auto Configuration, 62, 70, 72
Auto Rebuild, 46
Automatic configuration, 129
Automatic Configuration, 112, 129
Automatic Rebuild, 31, 87
B
Batch Initialization, 28, 83
Batch Rebuild, 31, 88
C
Cache Flush Timings, 10, 46
Cache Policy, 11, 20, 24, 27, 55, 72, 75, 79, 82, 124
Changing in Windows NT, 124
Cached I/O, 20, 24, 27, 55, 75, 79, 82
CanSpan, 23, 26, 55, 78
Change Config, 123
Change Status, 121
Channel, 12, 65
Check Consistency, 11, 14, 64, 67, 68, 123
Check Rebuild Rate, 134
Choose an Adapter, 128
Clear Configuration, 9, 10, 46, 47, 62, 63, 114
Clear Configuration Icon, 108
Client System Requirements, 90
Components, 90
Configuration Guidelines, 72
Configuration Menu, 111
Configuration Method, 16, 70
Configuration on Disk, 9
Configuration Utility, 5
Objects Menu, 17
Configuration Utility Check Consistency Menu, 14
Configuration Utility Format Menu, 13
Configuration Utility Initialize Menu, 9
Configuration Utility Menu Tree, 7, 8
Configuration Utility Objects Menu, 10
Configuration Utility Rebuild Menu, 13
Configuration Wizard, 52
Configure
Configuration Utility menu, 9
Configuring Arrays and Logical Drives, 15, 69, 127
Custom configuration, 129
Custom Configuration, 113, 130
D
Deactivate Channel, 65
Defining Logical Drives, 132
Deleting Logical Drives, 138
De-registering and Re-registering under Power
Console Plus, 103
Direct I/O, 20, 24, 27, 55, 75, 79, 82
Disable Termination, 65
Disk Spin-Up Parameters, 63
Disk Spin-Up Timings, 10
Display, 113
Display Configuration icon, 107
Display log icon, 110
Display the logical drive configuration, 25
Display the logical drives, 18, 22, 25, 73, 77, 80
Display the manufacturer data, 18, 22, 25, 73, 77, 80
Displaying Adapter Properties, 128
Displaying Logical Drive Properties, 128, 130, 131
Displaying Physical Drive Properties, 128, 130, 131
DOS volume.
Do not use RAID 3, 74, 78, 81
Drive roaming, 9
Drive States, 127
Drive-State, 23, 26, 74, 78, 81
Index
143
E
Installing the Power Console Plus Software, 92
Easy Configuration, 9, 16, 18, 62, 70, 73
Edit REGSERV.DAT for a RAID Server or
Registration Server, 102
Edit the Hosts File for a RAID Registration Server,
102
Edit the Hosts File for a RAID Server, 101
Enclosure Management, 115, 118
Icons, 119
Event Types, 146
Event Message IDs, 149
Event Message IDs for Test Events, 149
Example of Power Console Plus Configuration and
Network Layout, 97
Exit, 114
Exit icon, 110
L
F
M
Fail Drive, 12, 64
Failed, 127
Failed Disk Drives, 31
Rebuilding, 87
Features, 89
FlexRAID PowerFail, 46
Flush Cache, 115, 116
Format, 12, 13, 64, 66, 120
Formatting Drives, 85
Formatting Physical Drives, 85
Main Screen, 44
Make Hot Spare, 121
Make Hotspare, 12, 64
Make offline, 121
Make online, 121
Make Online, 12, 64
Manual Rebuild, 31, 87
Media Errors, 30, 85
MegaRAID Drive Characteristics, 138
MegaRAID Manager, 59
MegaRAID Manager Check Consistency Menu, 67,
68
MegaRAID Manager Configure Menu, 62
MegaRAID Manager Format Menu, 66
MegaRAID Manager Initialize Menu, 62
MegaRAID Manager Menu Tree, 61
MegaRAID Manager Objects Menu, 63
MegaRAID Manager Rebuild Menu, 66
MegaRAID Monitor Program
Adding the Program, 145
Command Line Options, 145
Deleting the Program, 145
Starting the Program Automatically, 145
Starting the Program with Windows NT, 144
MegaRAID Service Monitor, 100, 144
MegaRAID Service Monitor Program, 143
MegaRAID Web BIOS Configuration Utility, 43
MegaRAID.SYS Driver versions, 138
MegaRUM motherboard, 59
Memory Type, 46
Menu Bar, 105
G
Global Hot Spares, 135
H
Help icon, 110
Hot key functions, 18
Hot spare, 18, 22, 25, 73, 77, 80
Hot Spare, 127
Hot Spares, 17, 71, 135
I
Icons, 45
Individual Formatting, 30, 85, 86
Individual Initialization, 29, 48, 84
Individual Rebuild, 31, 87
Initialize, 9, 11, 64
Initialize logical drive, 122
Initialize Logical Drives, 134
Installation of SNMP Agent, 98
Installation Prequisites, 91
Installing an LSI Logic SNMP Agent, 98
Installing and Registering Power Console Plus
Components in a NetWare Server 4.x, 101
Installing on a Windows NT V4.x Server and
Workstation, 91
Installing Power Console Plus, 89
Installing SNMP Services in Windows NT 4.x, 98
144
MegaRAID Configuration Software Guide
LD, 19, 23, 26, 74, 78, 81
Load, 114
Logical Device, 128
Window, 128
Logical Devices, 105
Logical drive configuration, 22
Logical drive configuration screen, 26, 77, 80
Logical Drive Menu, 122
Logical Drive Properties icon, 109
Logical Drive Settings, 72
Logical drive size, 23, 27
Logical Drives, 11, 48, 49, 64
Initializing, 28, 48, 83
N
NetWare
and caching ploicy, 24
and caching policy, 20, 124
New Configuration, 9, 16, 22, 62, 70, 77
Normal, 124
NoSpan, 23, 26, 55, 78
Novell NetWare volume
Do not use RAID 3, 75
O
Objects, 10
Objects menu, 17
Online, 127
P
Performance Monitor, 116
Performance Monitor On/Off, 115
Physical Devices, 105
Physical Drive Menu, 120
Physical Drive Properties icon, 109
Physical Drives, 12, 51, 64
Formatting, 30, 85
Physical View, 58
Policy, 75
Cache, 11, 20, 24, 27, 55, 75, 79, 82
for caching, 24
Read, 11
Write, 11, 20
Power Console, 3
Power Console Plus, 89
Features, 89
Power Console Plus Adapter Menu, 115
Power Console Plus Client, 90
Power Console Plus Client Restrictions, 106
Power Console Plus Configuration Menu, 111
Power Console Plus Internal Messages, 143
Power Console Plus Logical Devices, 128
Power Console Plus Logical Drive Menu, 122
Power Console Plus Menus, 111
Main Menu Options, 111
Power Console Plus Physical Drive Menu, 120
Power Console Plus Screen Layout, 105
Power Console Plus Toolbar Icons, 107
Pre-loaded SCSI Drive, 32
Preview Configuration screen, 133
Print, 113
Print icon, 107
Print the Configuration, 134
Progress Menu, 125
Options, 125
Properties, 115, 117, 121, 123
R
RAID
Number of drives per RAID level, 22, 25
Number of drives required, 73
RAID 1
Spanning to configure RAID 10, 26, 78, 81
RAID 10
Configuring, 26, 78, 81
RAID 3
Spanning to configure RAID 30, 26, 78, 81
RAID 30
Configuring, 26, 78, 81
RAID 5
Spanning to make RAID 50, 26, 78, 81
RAID 50
Configuring, 26, 78, 81
RAID levels
Implementing, 77, 80
RAID Server, 90
Read Ahead, 124
Read Policy, 11, 72, 124
Changing in Windows NT, 124
Read-ahead, 20, 24, 27, 54, 75, 79, 82
Ready, 127
Rebuild, 13, 64
Rebuild option, 120
Rebuild Rate, 10, 46, 115, 117
Rebuild rate icon, 109
Rebuild Types, 87
Rebuilding, 127
Rebuilding drives, 31
Reclaim button, 129
Reclaiming Hot Spare
While Running the Wizard, 135
Reclaiming Hot Spares
During Normal Operation, 135
Registration Server, 90
Removing a Physical Drive from an Array, 131
Rescan, 115, 117
Rescan icon, 110
Running Power Console Plus, 105
S
Save, 114
Save Configuration, 134
Save Configuration and Initialize, 134
Save to Binary File, 134
Scan Devices, 47
SCSI Channel Properties, 47
SCSI-2 Command Tagging, 12
Securing Power Console Plus under Windows NT,
126
Select Adapter Menu
Configuration Utility, 15
SNMP Installation Prerequisites, 98
Spanning, 23, 55, 72
Spanning mode, 23, 26, 55, 78, 81
Spin Down, 121
Spin Up, 121
Start Power Console Plus, 127
Starting, 44
Starting the Monitor Program with Windows NT, 100
Step 1 Start Power Console Plus, 127
Step 2 Choose an Adapter, 128
Step 3 Run the Wizard, 129
Step 4 Save Configuration and Initialize, 134
Stripe size, 20, 24, 27, 54, 72, 75, 79, 82
StrpSz, 19, 23, 26, 74, 78, 81
Synchronous Negotiation, 12
T
Terminate High 8 Bits, 65
Index
145
Terminate Wide Channel, 65
Toolbar, 105
Theory of Operation, 137
Virtual Sizing & Online Capacity Expansion, 137
U
W
Undoing the Array, 129
Update Firmware, 115, 116
User Interface Restrictions, 106
Web BIOS Configuration Utility, 43
Web BIOS Icons, 45
Web Site, 91
Windows NT, 90
Wizard, 112, 129
Wizard icon, 107
Write Policy, 11, 20, 24, 27, 55, 72, 75, 79, 82, 124
Changing in Windows NT, 124
Write-back, 27, 55
WriteBack, 124
Write-back caching, 20, 24, 75
Write-through, 27, 55
Write-through caching, 20, 24, 75
WriteThru, 124
V
View Log, 115, 118
View Properties, 64, 65
View Rebuild Progress, 64
View/Add Configuration, 9, 16, 25, 62, 70, 80
View/Update Parameters, 11
View/Update Properties, 63, 64
Views, 105
Virtual Sizing, 11, 124
Enabling, 137
146
MegaRAID Configuration Software Guide
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