DELL M8034-RF hard disk drive Datasheet

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DELL M8034-RF hard disk drive Datasheet | Manualzz

SYSTEMS MANAGEMENT

Introducing Dell SAS RAID

Storage Manager

for Dell PowerEdge SC Servers and Dell Precision Workstations

Dell

Serial Attached SCSI (SAS) RAID Storage Manager is a stand-alone storage management application that enables administrators to configure, monitor, and manage storage configurations on SAS controllers, physical drives, and virtual disks.

This article discusses the application’s key features for Dell PowerEdge

SC servers and Dell Precision

workstations.

Related Categories:

Dell PowerEdge SC servers

Dell Precision workstations

Serial Attached SCSI (SAS)

Systems management

Visit www.dell.com/powersolutions for the complete category index.

BY MANJUSHA GOPAKUMAR AND GAGAN SHRESTHA

D ell Serial Attached SCSI (SAS) RAID Storage Manager

(RSM) software provides administrators with versatile array configuration and management options, including online capacity expansion, RAID level migration, and random logical drive deletion without system shutdown.

A wide assortment of caching policies for logical drives, variable stripe sizing, and adjustable task rates enable administrators to quickly and easily modify their storage arrays to meet enterprise requirements.

Dell SAS RSM is supported for the following operating systems:

• Microsoft ® Windows® 2000

• 32- and 64-bit versions of Microsoft Windows XP

Server ® 2003

• Red Hat ® Enterprise Linux ® 4 and 5

• Novell ® SUSE ® Linux Enterprise Server 9 and 10

Installing Dell SAS RAID Storage Manager

Dell SAS RSM is preinstalled as a stand-alone application on

Dell PowerEdge SC servers and Dell Precision workstations that support the PowerEdge Expandable RAID Controller

(PERC) 5/i and the SAS 5/iR adapter.

If administrators need to install or reinstall Dell SAS

RSM on a system running a Windows OS, they can locate the executable file on the Dell OpenManage™ Server

Assistant CD provided with the system or download the file from support.dell.com, then run it and complete the installation wizard. Once the installation completes, administrators can launch the application by selecting

Start>Programs>Dell SAS RAID Storage Manager.

To install Dell SAS RSM on systems running a Linux

OS, administrators should first copy the SSM_Linux_

Installer-versionnumber.tar.gz file to a temporary directory, then un-tar this file using the following command: tar –zxvf SSM_Linux_Installer-versionnumber.tar.gz

This command creates a new disk directory. Administrators should go to this new disk directory and enter the command ./install.sh

. In Red Hat Enterprise

Linux, they can then launch the application by selecting Applications>System Tools>Dell SAS RAID Storage

Reprinted from Dell Power Solutions, February 2007. Copyright © 2007 Dell Inc. All rights reserved .

DELL POWER SOLUTIONS

1 www.dell.com/powersolutions

SYSTEMS MANAGEMENT

Manager StartupUI; in Novell SUSE Linux Enterprise Server, they can do so by selecting Start>System>More Programs>Dell SAS

RAID Storage Manager.

Understanding the Dell SAS RAID Storage Manager interface

When the login window appears after launching Dell SAS RSM, administrators enter their username and password and select either Full Access mode (which enables both viewing and changing configurations) or View Access mode (which enables only viewing and monitoring configurations) from the drop-down menu. If the computer is networked, administrators should enter the login information for the computer itself, not the network.

Using Full Access mode requires the root administrator username and password.

After login, Dell SAS RSM automatically detects and displays the system’s storage controllers, physical drives, and virtual disks.

The application’s main window includes three panels: a left panel showing the system devices, a right panel showing additional details about a particular device, and a bottom panel showing system event log entries.

The left panel presents either a physical or logical view of the system and devices, depending on the selected tab. The Physical tab shows the hierarchy of physical devices; storage controllers are enumerated with the disk drives and other devices attached to the ports. The Logical tab shows the hierarchy of controllers, virtual disks, and disk groups.

The right panel includes three tabs, with different tabs displayed depending on the type of device selected in the left panel and the login mode: quickest and simplest way to create a new storage configuration. Using the available physical disks, the wizard creates the optimal virtual disk with minimal administrator intervention.

figuration based on a series of queries. The wizard uses the information provided by the administrator to create an optimal storage configuration using the available physical disks.

the three, but is designed for advanced users with in-depth knowledge of storage configurations.

Saving and adding virtual disk configurations

In addition to creating new configurations, administrators can import existing configurations to help prevent virtual disks from being lost when migrating physical disks or to help simplify configuration of a new controller. They can use Dell SAS RSM to save an existing configuration to disk by performing the following steps: window, then select Operations>Advanced Operations>

Configuration>Save Configuration in the menu bar.

file, then click the Save button.

Administrators can import a saved configuration as follows:

1. Select a controller in the left panel of the application’s main window, then select Operations>Advanced Operations>

Configuration>Add Saved Configuration in the menu bar.

may arise from differences in physical devices in two configurations. Click the Yes button.

2 device. For example, if a controller is selected, this tab shows information such as the controller name, nonvolatile RAM

(NVRAM) size, and number of device ports.

formed on the selected device. Dell SAS RSM only displays this tab in Full Access mode.

selected device’s storage capacity (see Figure 1). Dell SAS RSM only displays this tab for physical drives and virtual disks.

The bottom panel displays the system event log entries, including the ID number, an error level indicating event severity, the date and time, and a brief description.

Managing virtual disks

The Dell SAS RSM Configuration Wizard enables administrators to create new virtual disk configurations on the PERC 5/i and the

SAS 5/iR without rebooting the systems. It includes three modes for the PERC 5/i:

DELL POWER SOLUTIONS

Figure 1. Viewing physical disk storage in the Dell SAS RAID Storage Manager

Graphical View tab

Reprinted from Dell Power Solutions, February 2007. Copyright © 2007 Dell Inc. All rights reserved .

February 2007

SYSTEMS MANAGEMENT disk arrays or as hot spares, and is designed to correct disk errors and restore data integrity.

Dell SAS RSM enables administrators to set the Patrol Read mode to Auto, Manual, or Disable. Auto mode initiates Patrol Read based on the schedule enforced by the controller, Manual mode enables administrators to start or stop Patrol Read manually, and

Disable mode prevents Patrol Read from executing.

Monitoring system activity and performance

Dell SAS RSM monitors the activity and performance of controllers and the storage devices connected to them:

Figure 2. Changing virtual disk properties in the Dell SAS RAID Storage Manager

Operations tab of the application’s main window. If a controller fails, a small red circle appears to the right of the controller icon. To display complete controller information, administrators can select the controller in the left panel and click the Properties tab in the right panel.

Open button, and select “Apply.” the application’s main window. To display a graphical view of the disk drive, administrators can select the drive in the left panel and click the Graphical View tab in the right panel.

Note: When adding a saved configuration to a replacement controller, administrators should ensure that the number and size of the physical disks connected to the controller are exactly the same as they were when the configuration was saved.

Changing virtual disk properties and configurations

Administrators can modify properties (such as the read, write, I/O, and access policies) for virtual disks configured on the PERC 5/i by selecting the virtual disk in the left panel, then clicking the Operations tab and selecting “Set Virtual Disk Properties” (see Figure 2).

To change virtual disk configurations, administrators can use the Dell SAS RSM Reconstruction Wizard, which allows changes to the RAID level and virtual disk without data loss. (This feature is only available for virtual disks configured on the PERC 5/i.) For example, administrators can change the RAID level of a preconfigured RAID-0 virtual disk as follows:

1.

Select a virtual disk in the left panel of the application’s main window, then select Operations>Advanced Operations>

Reconstruction Wizard in the menu bar.

lower right corner of the window, then click the Finish button.

progress of rebuilds, consistency checks, and other processes by selecting Group Operations>Show Progress in the menu bar.

Upgrading controller firmware

Dell SAS RSM enables administrators to easily upgrade PERC 5/i controller firmware without rebooting the system. Administrators can perform a firmware upgrade as follows:

2. In the left panel of the application’s main window, select the appropriate PERC 5/i.

3. In the right panel, click the Operations tab and select “Flash

Firmware,” then click the Go button.

4. Browse for the .ROM update file and click the OK button.

5. When prompted to confirm the upgrade, click the Yes button.

Enhancing SAS storage management

Dell SAS RAID Storage Manager, which comes preinstalled on Dell

PowerEdge SC servers and Dell Precision workstations, enables administrators to configure, monitor, and manage storage configurations on

SAS controllers. Dell SAS RSM tools can enhance flexibility when managing storage devices in enterprise environments.

Administrators can monitor the reconstruction progress by selecting Group Operations>Show Progress in the menu bar.

Identifying disk errors with Patrol Read

Dell SAS RSM uses the Patrol Read controller feature to identify disk errors. Patrol Read can be run on disks configured in virtual

Manjusha Gopakumar is an engineer senior analyst in the Test Case Design team at the Dell Bangalore Development Center.

Gagan Shrestha is a lead engineer in the Test Case Design team at the Dell

Bangalore Development Center.

www.dell.com/powersolutions Reprinted from Dell Power Solutions, February 2007. Copyright © 2007 Dell Inc. All rights reserved .

DELL POWER SOLUTIONS

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