HP StorageWorks
D2600/D2700 Disk Enclosure User Guide
This guide describes the D2600/D2700 6Gb SAS disk enclosure. Installation, cabling, configuration, and
troubleshooting procedures are included.
Part number: 504227–002
Second edition: February 2010
Legal and notice information
© Copyright 2009-2010 Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice. The only warranties for HP products and services are set
forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as
constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
WARRANTY STATEMENT: To obtain a copy of the warranty for this product, see the warranty information website:
http://www.hp.com/go/storagewarranty
Revision History
Edition
Date
Description
First
September 2009
Initial release. Described server connect environments.
February 2010
Added information about dual domain configurations; reworked information
about server connect environments and added information about controller
enclosure connect environments; reworked existing and added new cabling
illustrations.
Second
Contents
1 Hardware ......................................................................................... 7
Overview ................................................................................................................................... 7
Small Form Factor disk enclosure chassis ........................................................................................ 8
Front view ........................................................................................................................... 8
Drive bay numbering ...................................................................................................... 8
Rear view ............................................................................................................................ 8
Large Form Factor disk enclosure chassis ........................................................................................ 9
Front view ........................................................................................................................... 9
Drive bay numbering ...................................................................................................... 9
Rear view ............................................................................................................................ 9
Disk drives ............................................................................................................................... 10
Disk drive LEDs .................................................................................................................. 10
Disk drive blanks ................................................................................................................ 10
Front status and UID module ....................................................................................................... 11
Front UID module LEDs ........................................................................................................ 11
Unit identification (UID) button ............................................................................................. 12
Power supply module ................................................................................................................ 12
Power supply LED ............................................................................................................... 12
Fan module .............................................................................................................................. 13
Fan module LED ................................................................................................................. 13
I/O module ............................................................................................................................. 14
I/O module LEDs ............................................................................................................... 14
Rear power and UID module ...................................................................................................... 16
Rear power and UID module LEDs ........................................................................................ 16
Unit identification (UID) button ............................................................................................. 17
Power on/standby button .................................................................................................... 17
SAS cables .............................................................................................................................. 17
2 Technical specifications ..................................................................... 19
Physical specifications ............................................................................................................... 19
Power and environmental specifications ....................................................................................... 19
3 Deployment types ............................................................................ 21
4 Installation ...................................................................................... 23
Installation overview ..................................................................................................................
Required items ..........................................................................................................................
Preliminary tasks .......................................................................................................................
Determining who will install and configure the disk enclosure ...................................................
Confirming support for your hardware and software components ..............................................
Signing up to automatically receive advisories, notices, and other messages ..............................
Confirming warranty support and finding out about related services ..........................................
Gathering and recording information ....................................................................................
Planning the storage configuration ........................................................................................
D2600/D2700 Disk Enclosure User Guide
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25
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25
3
System and performance expectations ............................................................................
Striping methods ..........................................................................................................
RAID levels .................................................................................................................
Disk drive sizes and types .............................................................................................
Spare disks .................................................................................................................
Array sizing ................................................................................................................
Preparing the site ......................................................................................................................
Racking the disk enclosure .........................................................................................................
Rack installation best practices .............................................................................................
Racking procedures ............................................................................................................
Installing disk drives in the enclosure ...........................................................................................
Disk drive options ...............................................................................................................
Disk drive guidelines ...........................................................................................................
Installing a disk drive ..........................................................................................................
Installing SAS controllers or controller enclosures ...........................................................................
Preparing the server ..................................................................................................................
Connecting SAS cables and power cords .....................................................................................
Overview ..........................................................................................................................
Cabling best practices ........................................................................................................
Connecting SAS cables to the server or controller enclosure .....................................................
Connecting SAS cables to cascaded disk enclosures ...............................................................
Connecting power cords .....................................................................................................
Powering on the disk enclosure ...................................................................................................
Power on best practices .......................................................................................................
Power on procedures ..........................................................................................................
Verifying the operating status of the disk enclosures .......................................................................
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40
5 Configuration .................................................................................. 41
Configuration overview .............................................................................................................. 41
Supported software tools ........................................................................................................... 41
6 Operation and management ............................................................. 43
Powering on disk enclosures ....................................................................................................... 43
Powering off disk enclosures ....................................................................................................... 44
Updating disk enclosure firmware ............................................................................................... 44
7 Cabling examples ............................................................................ 45
Large Form Factor D2600 disk enclosures — maximum capacity configuration ..................................
Small Form Factor D2700 disk enclosures — maximum capacity configuration ..................................
Dual domain example — best fault tolerance cabling ....................................................................
Dual domain — best performance cabling ...................................................................................
Dual domain—alternative cabling ...............................................................................................
46
47
48
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50
8 Troubleshooting ............................................................................... 51
If the enclosure does not initialize ...............................................................................................
Diagnostic steps .......................................................................................................................
Is the enclosure front fault LED amber? ..................................................................................
Is the enclosure rear fault LED amber? ...................................................................................
Is the power on/standby button LED amber? ..........................................................................
Is the power supply LED amber? ...........................................................................................
Is the I/O module fault LED amber? ......................................................................................
Is the fan LED amber? .........................................................................................................
Recognizing disk drive failure .....................................................................................................
4
51
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54
Effects of a disk drive failure ................................................................................................
Compromised fault tolerance ...............................................................................................
Factors to consider before replacing disk drives ......................................................................
Automatic data recovery (rebuild) .........................................................................................
Time required for a rebuild ............................................................................................
Failure of another drive during rebuild ............................................................................
Handling disk drive failures ...........................................................................................
54
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55
55
56
9 Replacement procedures ................................................................... 57
Customer self repair (CSR) .........................................................................................................
Parts-only warranty service ...................................................................................................
Best practices for replacing hardware components ........................................................................
Verifying component failure .................................................................................................
Identifying the spare part ....................................................................................................
Replaceable parts .....................................................................................................................
Replacing the failed component ..................................................................................................
Replacement instructions ............................................................................................................
Exploded view .........................................................................................................................
57
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58
58
58
59
59
10 Support and other resources ............................................................ 61
Contacting HP ..........................................................................................................................
Before you contact HP .........................................................................................................
HP contact information ........................................................................................................
Subscription service ............................................................................................................
Documentation feedback .....................................................................................................
Related information ...................................................................................................................
Websites ...........................................................................................................................
Document conventions and symbols .............................................................................................
Customer self repair ..................................................................................................................
Rack stability ............................................................................................................................
61
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63
11 Regulatory compliance notices ......................................................... 65
Regulatory compliance identification numbers ..............................................................................
Federal Communications Commission notice ................................................................................
FCC rating label ................................................................................................................
Class A equipment .......................................................................................................
Modifications ....................................................................................................................
Cables ..............................................................................................................................
Canadian notice (Avis Canadien) ...............................................................................................
Class A equipment .............................................................................................................
European Union notice ..............................................................................................................
Japanese notices ......................................................................................................................
VCCI-A notice ....................................................................................................................
Japanese power cord statement ............................................................................................
Korean notices .........................................................................................................................
Class A equipment .............................................................................................................
Taiwanese notices .....................................................................................................................
BSMI Class A notice ...........................................................................................................
Chinese notice ...................................................................................................................
Recycling notices ......................................................................................................................
English notice ....................................................................................................................
Bulgarian notice .................................................................................................................
Czech notice .....................................................................................................................
D2600/D2700 Disk Enclosure User Guide
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5
Danish notice ....................................................................................................................
Dutch notice ......................................................................................................................
Estonian notice ..................................................................................................................
Finnish notice .....................................................................................................................
French notice .....................................................................................................................
German notice ...................................................................................................................
Greek notice ......................................................................................................................
Hungarian notice ...............................................................................................................
Italian notice ......................................................................................................................
Latvian notice ....................................................................................................................
Lithuanian notice ................................................................................................................
Polish notice ......................................................................................................................
Portuguese notice ...............................................................................................................
Romanian notice ................................................................................................................
Slovak notice .....................................................................................................................
Spanish notice ...................................................................................................................
Swedish notice ...................................................................................................................
Turkish notice .....................................................................................................................
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Index ................................................................................................. 73
6
1 Hardware
Overview
6Gb SAS disk enclosures are available in two models:
• Small Form Factor (SFF): Supports 25 SFF (2.5 inch) disk drives
• Large Form Factor (LFF): Supports 12 LFF (3.5 inch) disk drives
Small Form Factor disk enclosure
Large Form Factor disk enclosure
NOTE:
Depending on your disk enclosure model and controller installation environment, one or more disk
enclosures can be cascaded from the disk enclosure that is connected to the controller. For more
information, see the QuickSpecs for the disk enclosure, available on the D2000 website:
http://www.hp.com/go/D2000.
The enclosure and its components are detailed in the following sections:
•
•
•
•
•
•
•
•
•
Small Form Factor disk enclosure chassis, page 8
Large Form Factor disk enclosure chassis, page 9
Disk drives, page 10
Front status and UID module, page 11
Power supply module, page 12
Fan module, page 13
I/O module, page 14
Rear power and UID module, page 16
SAS cables, page 17
D2600/D2700 Disk Enclosure User Guide
7
Small Form Factor disk enclosure chassis
Front view
1. Rack-mounting thumbscrews
3. UID push button and LED
2. Disk drive in bay 9
4. Enclosure status LEDs
Drive bay numbering
Disk drives mount in bays on the front of the enclosure. Bays are numbered sequentially from top to
bottom and left to right. Bay numbers are indicated on the left side of each drive bay.
Rear view
1. Power supply 1
4. I/O module A
7. UID push button and LED
2. Power supply 2
5. I/O module B
8. Enclosure status LEDs
3. Fan 1
6. Fan 2
9. Power push button and LED
8
Hardware
Large Form Factor disk enclosure chassis
Front view
1. Rack-mounting thumbscrews
3. UID push button and LED
2. Disk drive in bay 6
4. Enclosure status LEDs
Drive bay numbering
Disk drives mount in bays on the front of the enclosure. Bays are numbered sequentially from top to
bottom and left to right. A drive-bay legend is included on the left bezel.
Rear view
1. Power supply 1
4. I/O module A
7. UID push button and LED
2. Power supply 2
5. I/O module B
8. Enclosure status LEDs
3. Fan 1
6. Fan 2
9. Power push button and LED
D2600/D2700 Disk Enclosure User Guide
9
Disk drives
A variety of disk drive models are supported for use, including dual-ported and single-ported models.
For more information, see the QuickSpecs for the disk enclosure, available on the D2000 website:
http://www.hp.com/go/D2000.
Disk drives are hot-pluggable.
Disk drive LEDs
Two LEDs indicate drive status.
NOTE:
The following image shows a Small Form Factor (SFF) disk drive. LED patterns are the same for SFF
and LFF disk drives.
LED
LED color
Blue
LED status
Description
Slow blinking
Used to locate drive
Medium blinking
Used for critical locate
Fast blinking
Used for reserved locate
Solid
Drive fault
Blinking
Drive is spinning up or
down and is not ready
Fast blinking
Drive activity
Solid
Ready for activity
1. Locate/Fault
Amber
2. Status
Green
Disk drive blanks
To maintain the proper enclosure air flow, a disk drive or a disk drive blank must be installed in each
drive bay. The disk drive blank maintains proper airflow within the disk enclosure.
10
Hardware
Front status and UID module
The front status and UID module includes status LEDs and a unit identification (UID) button.
Front UID module LEDs
LED
1. Health
2. Fault
3. UID
LED icon
LED color
Green
Amber
Blue
LED status
Description
Off
No power or firmware fault
Blinking
Enclosure is starting up and
not ready, performing POST
Solid
Power is on
Off
No fault conditions or no
power
Blinking
A fault of lesser importance
was detected in the enclosure
chassis or modules
Solid
A fault of greater importance
was detected in the enclosure
chassis or modules
Off
Not being identified or power
is off
Blinking
Unit is being identified from
the management utility
Solid
Unit is being identified from
the UID button being pushed
D2600/D2700 Disk Enclosure User Guide
11
Unit identification (UID) button
The unit identification (UID) button helps locate an enclosure and its components. When the UID button
is activated, the UID on the front and rear of the enclosure are illuminated.
NOTE:
A remote session from the management utility can also illuminate the UID.
• To turn on the UID light, press the UID button. The UID light on the front and the rear of the enclosure
will illuminate solid blue. (The UID on cascaded storage enclosures are not illuminated.)
• To turn off an illuminated UID light, press the UID button. The UID light on the front and the rear
of the enclosure will turn off.
Power supply module
Two power supplies provide the necessary operating voltages to all controller enclosure components.
If one power supply fails, the remaining power supply is capable of operating the enclosure. (Replace
any failed component as soon as possible.)
NOTE:
If one of the two power supply modules fails, it can be hot-replaced.
Power supply LED
One LED provides module status information.
LED color
LED status
Description
Off
Off
No power
Green
Solid
Normal, no fault conditions
12
Hardware
Fan module
Fan modules provide cooling necessary to maintain proper operating temperature within the controller
enclosure. If one fan fails, the remaining fan is capable of cooling the enclosure. (Replace any failed
component as soon as possible.)
NOTE:
If one of the two fan modules fail, it can be hot-replaced.
Fan module LED
One bi-color LED provides module status information.
LED color
LED status
Description
Off
Off
No power
Blinking
The module is being identified
Solid
Normal, no fault conditions
Blinking
Fault conditions detected
Solid
Problems detecting the module
Green
Amber
D2600/D2700 Disk Enclosure User Guide
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I/O module
The I/O module provides the interface between the disk enclosure and the host.
Each I/O module has two ports that can transmit and receive data for bidirectional operation.
Small Form Factor I/O module
Large Form Factor I/O module
1. Manufacturing diagnostic port
4. Double 7–segment display
2. SAS Port 1
5. I/O module LEDs
3. SAS Port 2
I/O module LEDs
LEDs on the I/O module provide status information about each I/O port and the entire module.
NOTE:
The following image illustrates LEDs on the Small Form Factor I/O module.
14
Hardware
LED
1. SAS Port Link
2. SAS Port Error
3. 7–segment display
4. UID
5. Health
6. Fault
LED icon
n/a
n/a
n/a
LED color
Green
Amber
LED status
Description
Off
No cable, no power, or port
not connected
Blinking
The port is being identified by
an application client
Solid
Healthy, active link
Off
Normal, no errors detected
Blinking
Error detected by application
client
Solid
Error, fault conditions detected
on the port by the I/O module
Off
No cable, no power, enclosure
not detected
Number
The enclosure box number
Off
Not being identified or no
power
Solid
Module is being identified,
from the management utility
Off
No power or firmware malfunction
Blinking
Enclosure is starting up and not
ready, performing POST
Solid
Normal, power is on
Off
Normal, no fault conditions
Blinking
A fault of lesser importance
Solid
A fault of greater importance,
I/O failed to start
n/a
Blue
Green
Amber
D2600/D2700 Disk Enclosure User Guide
15
Rear power and UID module
The rear power and UID module includes status LEDs, a unit identification (UID) button, and the power
on/standby button.
Rear power and UID module LEDs
LED
LED icon
1. UID
2. Health
3. Fault
LED color
Status
Description
Off
Not being identified or no
power
On
Unit is being identified,
either from the UID button
being pushed or from the
management utility
Off
No power
Blinking
Enclosure is starting up
and not ready, performing POST
Solid
Normal, power is on
Off
Normal, no fault conditions
Blinking
A fault of lesser importance
Solid
A fault of greater importance
Green
Solid
Power is on
Amber
Solid
Standby power
Blue
Green
Amber
4. On/Standby
16
Hardware
Unit identification (UID) button
The unit identification (UID) button helps locate an enclosure and its components. When the UID button
is activated, the UID on the front and rear of the enclosure are illuminated.
NOTE:
A remote session from the management utility can also illuminate the UID.
• To turn on the UID light, press the UID button. The UID light on the front and the rear of the enclosure
will illuminate solid blue. (The UID on cascaded storage enclosures are not illuminated.)
• To turn off an illuminated UID light, press the UID button. The UID light on the front and the rear
of the enclosure will turn off.
Power on/standby button
The power on/standby button applies either full or partial power to the enclosure chassis.
• To initially power on the enclosure, press and hold the on/standby button for a few seconds, until
the LEDs begin to illuminate.
• To place an enclosure in standby, press and hold the on standby button for a few seconds, until
the on/standby LED changes to amber.
NOTE:
System power to the disk enclosure does not completely shut off with the power on/standby button.
The standby position removes power from most of the electronics and components, but portions of
the power supply and some internal circuitry remain active. To completely remove power from the
system, disconnect all power cords from the device.
SAS cables
These disk enclosures use cables with mini-SAS connectors for connections to the host and to additional
cascaded disk enclosures.
Use supported SAS cables with mini-SAS connectors. A variety of SAS cables and cable lengths are
supported for use with this disk enclosure. For more information, see the QuickSpecs for the disk
enclosure, available on the D2000 website: http://www.hp.com/go/D2000.
D2600/D2700 Disk Enclosure User Guide
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18
Hardware
2 Technical specifications
Physical specifications
Dimensions
Height (2U)
8.8 cm (3.47 in)
Width
45.0 cm (17.99 in)
Depth
56.7 cm (22.3 in)
No disk drives: 17.2 kg (38 lb)
Weight
Fully populated with SFF disk drives: 24.9 kg (54.90 lb)
Fully populated with LFF disk drives: 27.2 kg (59.97 lb)
Mini SAS connector life expectancy
250 connect/disconnect cycles (for external, internal, and cable Mini
SAS connectors)
Power and environmental specifications
Temperature range (Temperature ratings
shown are for sea level. An altitude rating
of 1°C per 300 m (1.8°F per 1,000 ft) to
3048 m (10,000 ft) is applicable. The upper
limit might be limited by the type and number
of options installed.)
Relative humidity (Non-operating maximum
humidity of 95% is based on a temperature
of 45°C (113°F). Altitude maximum for storage corresponds to a pressure minimum of
70 KPa.)
Altitude (Maximum allowable altitude change
rate is 457 m/min (1500 ft/min))
Input power (Input Power and Heat Dissipation specifications are maximum values and
apply to worst-case conditions at full rated
power supply load. The power/heat dissipation for your installation will vary depending
on the equipment configuration.)
Operating
10°C to 35°C (50°F to 95°F) Maximum rate
of change is 10ºC/Hr (18ºF/Hr)
Shipping
–40°C to 66°C (–40°F to 150°F) Maximum
rate of change is 20ºC/Hr (36ºF/Hr)
Operating
10% to 90% relative humidity (Rh) 28ºC
(82.4ºF) Maximum wet bulb temperature noncondensing
Non-operating
5% to 95% relative humidity (Rh)
Operating
3048 m (10,000 ft) This value might be limited by the type and number of options installed.
Non-operating
9144 m (30,000 ft)
Input voltage
100 to 240 VAC
Input frequency
50 to 60 Hz
Input current
2.68 A at 115 VAC typical, 4 A maximum
Input power
(max)
300 W
D2600/D2700 Disk Enclosure User Guide
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20
Technical specifications
3 Deployment types
The following types of deployments are supported:
• Single domain
In a single domain deployment, one path exists from the disk enclosure to the host. In a single
domain deployment, only one I/O module in the disk enclosure is used
• Dual domain
In a dual domain deployment, two paths exist from the disk enclosure to the host. In a dual domain
deployment, both I/O modules in the disk enclosure are used. Because dual domain deployments
provide two paths to the storage, access is ensured, even in the event of device, cable, or power
failure. In dual domain environments, dual-port disk drives are required.
• Server attached (single or dual domain)
In a server attached deployment, the disk enclosure is connected to a controller card installed in
a server. Several models of controller cards are supported for use with this disk enclosure. For
more information, see the QuickSpecs for the disk enclosure.
• Controller enclosure attached (single or dual domain)
In a controller enclosure attached deployment, the disk enclosure is connected to a rack-mounted
array controller enclosure. The controller enclosure is then connected to the server or network.
Several models of array controller enclosures are supported for use with this disk enclosure. For
more information, see the QuickSpecs for the disk enclosure.
NOTE:
Cabling illustrations are provided elsewhere in this guide, showing a variety of example deployments.
See Chapter 7 on page 45.
D2600/D2700 Disk Enclosure User Guide
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22
Deployment types
4 Installation
Installation overview
Installation steps include:
1.
2.
3.
4.
5.
6.
Locating Required items, page 23
Completing Preliminary tasks, page 24
Preparing the site, page 29
Racking the disk enclosure, page 30
Installing disk drives in the enclosure, page 32
Connecting SAS cables and power cords, page 35
7.
8.
Powering on the disk enclosure, page 39
Verifying the operating status of the disk enclosures, page 40
Required items
Items required for installation include the following, some of which ship with the disk enclosure:
•
•
•
•
•
•
•
•
Rack mounting kit
Disk enclosure
Disk drives and drive blanks
SAS controller or controller enclosure
SAS cables
Power cables
Access to a workstation on the server
Access to the Internet
NOTE:
A variety of disk drives, SAS controllers, controller enclosures, and SAS cables are supported for use
with this disk enclosure. For more information, see the QuickSpecs for the disk enclosure, available
on the D2000 website: http://www.hp.com/go/D2000.
D2600/D2700 Disk Enclosure User Guide
23
Preliminary tasks
Planning tasks include:
•
•
•
•
•
•
Determining who will install and configure the disk enclosure, page 24
Confirming support for your hardware and software components, page 24
Signing up to automatically receive advisories, notices, and other messages, page 25
Confirming warranty support and finding out about related services, page 25
Gathering and recording information, page 25
Planning the storage configuration, page 25
Determining who will install and configure the disk enclosure
Storage management experience is required to successfully install and configure this product. If you
are not familiar with installing and configuring storage array systems, HP can install this product for
you. For more information, see the Business & IT Services website: http://www.hp.com/go/services.
Different levels of assistance are available. For example, the following services might be included:
•
•
•
•
•
•
•
•
Site inspection
Verification of operating system patch levels
Customized virtual disk design
Array hardware installation and activation of optional software
Array initialization
Verification that the implemented solution meets your specifications
Availability of an HP Services Storage Specialist to answer questions during the deployment process
Verification testing to confirm product functionality and adherence to HP installation quality
standards
• On-site orientation, including highlights of basic operation and a review of documentation
Confirming support for your hardware and software components
Specific versions of hardware, firmware, software, drivers, and other components are designed to
work together.
The QuickSpecs for your disk enclosure model provide an up-to-date list of supported servers, operating
systems, controllers, switches, and software tools. Download and review the QuickSpecs for your disk
enclosure model to confirm that the components you plan to use are supported for use with the disk
enclosure.
Check the QuickSpecs before initially installing the disk enclosure and before making any changes
to an existing installation. QuickSpecs are available on the D2000 disk enclosures website: http://
www.hp.com/go/D2000.
24
Installation
Signing up to automatically receive advisories, notices, and other messages
The Subscriber's Choice website includes options to register for and automatically receive, by e-mail,
personalized product tips, update information, driver- and support-related advisories, and other notices
for this and other HP devices. Although optional, HP recommends registering all of your HP products
with Subscriber's Choice. For more information, see the Subscriber's Choice website: http://
www.hp.com/go/e-updates.
To register for and automatically receive product tips, update information, driver- and support-related
advisories, see the Subscriber's Choice website: http://www.hp.com/go/e-updates. Click Subscribe
and follow the onscreen instructions to select all of the HP products for which you want to receive
notices. While subscribing, indicate your delivery preference (HTML, text, or RSS) and frequency of
delivery (as they become available, weekly, or monthly).
Confirming warranty support and finding out about related services
The standard warranty protects against product defects and some causes of downtime. You can extend
your warranty with HP Care Pack Services. This portfolio of predefined packages is flexible, allowing
you to extend coverage to the exact level of support required. You choose the support level that meets
your business requirement, from basic to mission-critical.
Recommended service levels and appropriate related services for your particular disk enclosure model
are listed on the QuickSpecs. For more information, see the Storage Services website: http://
www.hp.com/hps/storage.
Gathering and recording information
A brief worksheet is included on the getting started instructions that is shipped with the disk enclosure.
As you gather and identify the hardware and software components for your environment, use the
worksheet to record information about your components and your configuration. Some information
is easily obtained before installing the disk enclosure, while some of the information is created during
the configuration process.
A basic worksheet is included on the poster, but HP recommends creating and keeping more detailed
records.
Information recorded on the worksheet is used during the initial system setup and configuration, and
is helpful for future configuration changes and troubleshooting purposes.
NOTE:
If a supplier is installing or configuring your disk enclosure, provide them with the poster, and verify
that they complete the worksheet and record other important configuration and set up information.
Planning the storage configuration
Proper planning of the system storage and its subsequent performance is critical to a successful
deployment of the disk enclosure. Improper planning or implementation can result in wasted storage
space, degraded performance, or inability to expand the system to meet growing storage needs.
D2600/D2700 Disk Enclosure User Guide
25
Storage planning considerations include:
•
•
•
•
•
•
System and performance expectations
Striping methods
RAID levels
Disk drive sizes and types
Spare drives
Array sizing (capacity)
NOTE:
For the minimum supported configuration, and other configuration information, see the QuickSpecs
for the disk enclosure.
System and performance expectations
To help determine the best way to configure your storage, rank the following three storage
characteristics in order of importance:
• Fault tolerance (high availability)
• I/O performance
• Storage efficiency
With priorities established, you can determine which striping method and RAID level to use; some
configuration methods offer greater fault tolerance, while other configuration methods offer better I/O
performance or storage efficiency.
Striping methods
There are two methods for configuring the physical layout of the disk arrays:
• Vertical striping—the RAID array uses one physical drive from each disk enclosure.
• Horizontal striping—the RAID array uses multiple drives contained within one or more disk enclosures.
RAID levels
Controllers use RAID technology to group multiple disk drives together in larger logical units (LUNs).
Key RAID methods include the use of data striping, data mirroring, and parity error checking. Data
striping improves speed by performing virtual disk I/O with an entire group of physical disks at the
same time. Mirroring provides data redundancy by storing data and a copy of the data. Parity error
checking provides automatic detection and correction if corruption of a physical disk occurs.
Depending on the host environment, the following RAID levels are supported with this disk enclosure:
RAID0, RAID1, RAID5 and RAID6 with ADG. Each level uses a different combination of RAID methods
that impact data redundancy, the amount of physical disk space used, and I/O speed. After you
create a LUN, you cannot change the RAID level.
The following table compares the different RAID levels.
26
Installation
Summary
Best practices
Data redundancy
RAID method
RAID0
RAID0 is optimized for I/O
speed and efficient use of
physical disk capacity, but
provides no data redundancy.
IMPORTANT: Do not use RAID0
for LUNs if fault tolerance is required. Consider RAID0 only for
noncritical storage. RAID0 LUNs
provide the best performance for
applications that use random I/O.
None
Striping
RAID1 is optimized for data
redundancy and I/O speed,
but uses the most physical
disk space. IMPORTANT:
RAID1 uses about 100%
more physical disk space
than RAID0 and 70% more
than RAID5.
In general, RAID1 virtual disks
provide better performance characteristics over a wider range of
application workloads than
RAID5.
RAID1
High
Mirroring
RAID5
RAID5 provides a balance
of data redundancy, I/O
speed and efficient use of
physical disk space.
RAID5 virtual disks can provide
performance advantages over
RAID1 for some applications that
use sequential I/O. Consider
RAID5 disks for applications with
high sequential I/O of records in
multiples of 8K bytes. The larger
the record size, the greater the
advantage.
Medium
Striping and
parity
RAID6
Like RAID5, RAID6 generates and stores parity information to protect against data
loss caused by drive failure.
With RAID6, however, two
different sets of parity data
are used, allowing data to
be preserved if two drives
fail.
RAID6 is most useful when data
loss is unacceptable but cost is
also an important factor. The
probability that data loss will occur when an array is configured
with RAID6 is less than it would
be if it was configured with
RAID5. However, write performance is lower than RAID5 because of the two sets of parity
data.
High
Striping and
parity
Disk drive sizes and types
RAID arrays should be composed of disk drives of the same size and performance capability. When
drives are mixed within a disk enclosure, the usable capacity and the processing ability of the entire
storage sub-system is affected. For example, when a RAID array is composed of different sized drives,
the RAID array defaults to the smallest individual drive size, and capacity in the larger drives goes
unused.
Spare disks
Spares are disks that are not active members of any particular array, but have been configured to
be used when a disk in one of the arrays fails. If a spare is present, it will immediately be used to
begin rebuilding the information that was on the failed disk, using parity information from the other
member disks. During the rebuilding process, the array is operating in a reduced state and, unless it
is a RAID6 or RAID1+0 array, it cannot tolerate another disk failure in the same array. If another disk
D2600/D2700 Disk Enclosure User Guide
27
fails at this time, the array becomes inaccessible and information stored there must be restored from
backup.
After the rebuild of the data onto the spare is completed, when a replacement drive is inserted to
replace the failed drive, the system will automatically transfer the data from the spare onto the
replacement drive and return the spare to an available-spare state. It is important to note that the
process of rebuilding the spare or the replacement drive must not be interrupted or the process will
be aborted.
Some administrators have multiple spare disks, so that multiple arrays can experience failure and
successfully recover, before administrative intervention would be required to replace the spare or
failed disk. When assigning a spare to an array, the administrator chooses which arrays and how
many arrays are protected by that spare.
Array sizing
As a general rule, the greater the number of drives that are included in an array, the greater the
performance level that can be achieved. However, performance considerations are offset by fault
tolerance considerations. The greater the number of drives in an array, the higher the probability of
one or more disk failures in that array. The administrator must strike a balance between performance
and fault tolerance.
28
Installation
Preparing the site
Preparing your site includes:
• Providing adequate structural support
Calculate the total weight of your equipment and verify that your site can support the weight.
For HP ProLiant server environments, consider using Rack Builder, a software tool that provides a
simplified method to planning and configuring racks and rack-mountable products. Rack Builder
is available on the Options tab of the ProLiant Home page of the HP servers website: http://
www.hp.com/country/us/eng/prodserv/servers.html.
• Providing adequate clearance space and ventilation
Be sure to provide adequate clearance around the front and back of the racks. Provide at least
63.5 cm (25 in) in the front of the rack to allow the doors to open fully and provide at least 76.2
cm (30 in) in the rear of the rack to allow for servicing and airflow.
If there are unused spaces in your rack, attach blanking panels across those empty spaces to force
the airflow through the components instead of through the open spaces.
• Providing adequate and redundant sources of power
Make sure that you have two high-line power feeds installed near your computer. These two power
sources usually come from the same external power grid, but occasionally might originate from
different grids or even entirely different sources.
For protection against a power-source failure, obtain and include two uninterruptible power supplies
in your installation.
For power consumption specifications, see the QuickSpecs for your disk enclosure model.
To ensure continuous, safe, and reliable operation of your equipment, place your system in an approved
environment.
Consider using the HP Enterprise Configurator (eCO) to help plan and configure racks and
rack-mountable devices. The eCO is available on the HP website: http://h30099.www3.hp.com/
configurator.
D2600/D2700 Disk Enclosure User Guide
29
Racking the disk enclosure
The disk enclosure can be installed into most standard server racks. To verify that your rack is supported
for use with the disk enclosure, see the QuickSpecs for the disk enclosure, available on the D2000
website: http://www.hp.com/go/D2000.
CAUTION:
Install disk drives in the enclosures only after mounting the enclosures in the rack.
• A disk enclosure populated with disk drives is too heavy to lift safely.
• Movement of a disk enclosure during installation might damage the internal storage media of installed disk drives.
Rack installation best practices
In addition to industry-standard recommendations, consider the following:
• Locate the heaviest items, such as uninterruptable power supplies (UPS) and additional disk enclosures near the bottom of the rack.
• To make cabling easy, install the disk enclosures below the server.
• Install similar components next to each other in the rack. Because disk enclosures, switches, and
servers are of differing depths, if you have more than one of a device, mount those devices adjacent
to one another to accommodate working behind the rack.
WARNING!
To reduce the risk of personal injury or damage to the equipment, be sure that:
• At least two people lift the storage system during removal or installation if the weight exceeds
22.7 kg (50 lb). If the system is being loaded into the rack above chest level, a third person MUST
assist with aligning the system with the rails while the other two people support the weight of the
system.
• The leveling jacks on the rack are extended to the floor.
• The full weight of the rack rests on the leveling jacks.
• The stabilizing feet are attached to the rack if it is a single-rack installation.
• The racks are coupled together in multiple-rack installations.
• Only one component in a rack is extended at a time. A rack might become unstable if more than
one component is extended.
• To prevent damage and to ease insertion of the device into the rack, support the weight of the
device and keep it level when sliding it into the rack.
30
Installation
Racking procedures
1.
2.
Position left and right rack rails at the desired 'U' position in the rack, adjusting the rails to fit the
rack, as needed (1).
Secure rack rails to the front and back rack columns using screws. Make sure that the shoulders
of the screws fit inside the square or round holes of the rack (2).
NOTE:
If installing rails in a square hole rack, use larger-sized shoulder screws and pins for mounting.
If installing rails in a round hole rack, use smaller-sized shoulder screws and pins for mounting.
3.
Slide the device into position on the rails (1) and then tighten the thumbscrews on the front of the
device to secure the device to the rack.
NOTE:
The rear ends of the rails have a bracket that must engage the device chassis to secure the rear
of the chassis to the rails.
D2600/D2700 Disk Enclosure User Guide
31
Installing disk drives in the enclosure
Disk drive options
Depending on the enclosure model, 12 or 25 disk drives can be installed in the enclosure.
A variety of disk drive models are supported for use, including dual-ported and single-ported models.
For more information about supported disk drives, see the QuickSpecs for the disk enclosure, available
on the D2000 website: http://www.hp.com/go/D2000.
Disk drive guidelines
CAUTION:
• Follow industry-standard practices when handling disk drives. Internal storage media can be
damaged when drives are shaken, dropped, or roughly placed on a work surface.
• When installing a disk drive, press firmly to make sure the drive is fully seated in the drive bay
and then close the latch handle.
• When removing a disk drive, press the release button and pull the drive only slightly out of the
enclosure. Then, to allow time for the internal disk to stop rotating, wait approximately 10 seconds
before completely removing the drive from the enclosure.
• Always populate hard drive bays starting with the lowest bay number. If only one hard drive is
used, install it in the bay with the lowest device number.
• Disk drives are hot-pluggable.
• SAS and SATA disk drives may be installed in the same enclosure, but can not be included in the
same RAID logical volume.
Installing a disk drive
CAUTION:
To prevent improper cooling and thermal damage, operate the enclosure only when all bays are
populated with either a component or a blank.
1.
32
Remove the drive blank.
Installation
2.
Unlatch and swing out the latch handle on the drive. Then, slide the drive into the bay (1),
pressing firmly on the drive to seat it. Close the latch handle (2), pressing firmly until it locks in
place.
IMPORTANT:
When a drive is inserted in an operational enclosure, the drive LEDs flash to indicate that the
drive is seated properly and receiving power.
3.
Determine the status of the hard drive (see Drive status reporting).
IMPORTANT:
For proper airflow and cooling, a drive blank must remain installed in all unused drive bays.
D2600/D2700 Disk Enclosure User Guide
33
Installing SAS controllers or controller enclosures
When installing controllers or controller enclosures, be sure to do the following.
• Record information about the controller or controller enclosure that will connect to the disk enclosure.
• Depending on your deployment, do one of the following:
• For server connect deployments, install one or more Smart Array controllers in the server that
will access the disk enclosure.
• For controller enclosure connect deployments, install or locate the controller enclosure to which
the disk enclosure will connect.
NOTE:
For detailed installation and configuration information about controller cards or controller enclosures,
see the documentation provided with the controller card or controller enclosure.
Preparing the server
When preparing servers for the disk enclosure, be sure to do the following.
• Record information about the server and environment (server connect or controller enclosure connect)
that will connect to the disk enclosure.
• Verify that the servers, controllers, operating system version, and service packs are supported for
use with the disk enclosure. For more information, see the QuickSpecs for the disk enclosure,
available on the D2000 website: http://www.hp.com/go/D2000.
• Install all operating-system-specific service packs, patch kits, or other required tools.
• Install HP system management and monitoring tools, such as HP Systems Insight Manager (HP-SIM)
and the Array Configuration Utility (ACU).
NOTE:
For detailed installation and configuration information about the server or the software tools, see the
documentation provided with the server or software.
34
Installation
Connecting SAS cables and power cords
Overview
Connecting cables includes the following steps:
1.
2.
3.
4.
Reading the Cabling best practices, page 35.
Connecting SAS cables to the server or controller enclosure, page 36.
Connecting SAS cables to cascaded disk enclosures, page 37.
Connecting power cords, page 38.
IMPORTANT:
The following illustrations demonstrate connecting a disk enclosure to a server with an installed
controller. In your environment, the disk enclosure might connect to a controller enclosure, which then
connects to the host or network. Cabling restrictions may exist for the different installation environments.
For more information, see the user documents for your controller or controller enclosure.
NOTE:
For additional examples of cabling scenarios, see Chapter 7 on page 45.
Cabling best practices
• Use supported SAS cables and power cords. A variety of cables and cable lengths are supported
for use with this disk enclosure. For more information, see the QuickSpecs for the disk enclosure,
available on the D2000 website: http://www.hp.com/go/D2000.
• Use the shortest possible cable between devices. Shorter cables reduce the possibility of signal
degradation that might occur over longer distances. In addition, shorter cables are easier to
manage and route along the back of the rack.
• Gather cables in the rear of the disk enclosure to ensure that the cabling in the back of the rack
system does not interfere with system operation or maintenance. Bind cables loosely with cable
ties and route the cables out of the way, along the side of the rack. When the cables are tied together and routed down the side of the rack, system components and indicators are easily visible
and accessible.
• Bind and support cables in a manner that eliminates stress on connectors and tight bends of the
cables. This prevents damage to the connector and cable, and ensures that the connector remains
fully seated in the port.
• Attach a label near both ends of each cable to identify the device connected to that cable. Include
the device, device name, port, or other useful information.
• Use colored markers to color code both ends of each cable, to help visually identify a particular
cable without having to read or locate the label.
• In multipath configurations, you might want to loosely bind the matching pair of cables connecting
devices.
D2600/D2700 Disk Enclosure User Guide
35
Connecting SAS cables to the server or controller enclosure
To connect the first disk enclosure to the server or controller enclosure, use a standard mini-SAS cable.
IMPORTANT:
When connecting this disk enclosure in a single-domain environment, only the top I/O module (I/O
module A) in the disk enclosure is supported for use.
Observe the following guidelines:
• Only use supported SAS cables with mini-SAS connectors.
• Ensure that the servers or controller enclosures are powered down and power cords are disconnected before connecting SAS cables to the disk enclosure.
The following illustration demonstrates connecting a disk enclosure to a server with an installed
controller. In your environment, the disk enclosure might connect to a controller enclosure, which then
connects to the host or network. Regardless of environment, cabling principles from the disk enclosure
to the host are the same.
Note the following when connecting cables:
• P1 on the disk enclosure I/O module is treated as the SAS “in” port.
• P2 on the disk enclosure I/O module is treated as the SAS “out” port.
• In single-domain configurations, one cable path is created between the host, the primary disk enclosure, and additional cascaded disk enclosures. (Shown)
• In dual-domain configurations, two cable paths are created between the host, the primary disk
enclosure, and additional cascaded disk enclosures.
36
Installation
Connecting SAS cables to cascaded disk enclosures
To cascade additional disk enclosures from the disk enclosure that is connected to the server or
controller enclosure, use standard mini-SAS cables.
As additional disk enclosures are connected to the first disk enclosure, they are assigned a box number.
The assigned box number is displayed on the 7-segment display on the rear of the disk enclosure.
IMPORTANT:
• When connecting this disk enclosure in a single-domain environment, only the top I/O module
(I/O module A) in the disk enclosure is supported for use.
• The number of supported cascaded disk enclosures varies per disk enclosure model and installation
environment. For more information, see the QuickSpecs for the disk enclosure, controller, or controller enclosure, available on the HP storage website: http://www.hp.com/go/storage.
Observe the following guidelines:
• Only use supported SAS cables with mini-SAS connectors.
• Use provided color clues on the disk enclosure when cabling cascaded disk enclosures; for example,
connect “green” ports to “green” ports (connect I/O module A on one disk enclosure to I/O
module A on the additional disk enclosure).
Note the following when connecting cables:
• P1 on the disk enclosure I/O module is treated as the SAS “in” port.
• P2 on the disk enclosure I/O module is treated as the SAS “out” port.
• In single-domain configurations, one cable path is created between the host, the primary disk enclosure, and additional cascaded disk enclosures. (Shown)
• In dual-domain configurations, two cable paths are created between the host, the primary disk
enclosure, and additional cascaded disk enclosures.
D2600/D2700 Disk Enclosure User Guide
37
Connecting power cords
When connecting power cords, use the cords shipped with the disk enclosure.
The power cord should be approved for use in your country. The power cord must be rated for the
product and for the voltage and current marked on the electrical ratings label of the product. The
voltage and current rating for the cord should be greater than the voltage and current rating marked
on the product. In addition, the diameter of the wire must be a minimum of 1.00 mm2 or 18 AWG,
your maximum length may be up to 3.66 m (12 ft).
After power is supplied to the disk enclosure, the power supply automatically senses the input voltage
and the power supply LED illuminates as solid amber.
To protect the system from power-failure-related downtime, each disk enclosure ships standard with
a redundant power supply. Depending how you connect the power supplies to the power source,
you can eliminate downtime caused by power-related failures.
Connection Method
Connected to:
• one power source
Level of Protection
Protects you from downtime when one of the disk enclosure power supplies fails.
The remaining power supply/fan module can operate the disk enclosure until you
install a replacement module.
Protects you from downtime when one of the disk enclosure power supplies fails.
Connected to:
• two separate power
sources
Protects you from data loss when one of your power sources fails, due to a pulled
cable or tripped breaker.
The remaining power source can power the disk enclosure until the failed power
source is restored or relocated. Depending on the cause and duration of the power
outage, you can use this time to properly shut down your storage sub-system.
Protects you from downtime when one of the disk enclosure power supplies fails.
Connected to:
• two UPS
• two separate power
sources
Protects you from data loss when one or both of your power sources fails, due to
a pulled cable, tripped breaker, or local power outage.
The remaining power source or the UPS will power the disk enclosure until power
is restored to the source. Depending on the cause and duration of the power
outage, you can use this time to properly shut down your storage sub-system.
WARNING!
To reduce the risk of electric shock or damage to the equipment:
• Do not disable the power cord grounding plug. The grounding plug is an important safety feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible at all times.
• Route the power cord so that it is not likely to be walked on or pinched by items placed against
it. Pay particular attention to the plug, electrical outlet, and the point where the cord is attached
to the disk enclosure.
38
Installation
Powering on the disk enclosure
After disk enclosures are physically installed and cabled, power on all devices and verify that they
are operating properly.
Power on best practices
Observe the following best practices before powering on the enclosure for the first time:
• Complete the server, controller, or controller enclosure installation. For more information, see the
server, controller, or controller enclosure user documents.
• Install the disk enclosures.
• Install disk drives in the disk enclosures so that the connected host controller can identify and
configure them at power on.
• Connect the SAS cables and power cords to the enclosure.
Power on procedures
1.
2.
Apply power to each UPS.
Apply power to all disk enclosures by pressing and holding the power on/standby button on the
rear of the disk enclosures until the system power LED illuminates solid green.
The LED on the power on/standby button changes from amber to solid green, indicating that the
disk enclosure has transitioned from a standby state to fully powered.
3.
Wait a few minutes for the disk enclosures to complete their startup routines.
CAUTION:
If power is applied to the server before the disk enclosures complete their startup routine, the
server might not properly discover the storage.
4.
5.
Apply power to the controller enclosure (if included in the configuration).
Power on (or restart) the server with access to the disk enclosures, start the operating system, and
log on as administrator.
CAUTION:
When you power on the server, the monitor might display a “New Hardware Found” message.
Cancel out of this window to prevent the installation of unsupported software.
6.
Verify that each component is operating properly.
D2600/D2700 Disk Enclosure User Guide
39
Verifying the operating status of the disk enclosures
To verify that the disk enclosures and disk drives are operating properly, view the enclosure and disk
drive LEDs and compare them with the patterns described in the following table. If LED patterns are
not as expected, check cable connections between the devices, check the availability of your power
source, review the installation procedures, and remove and reinsert the module. For more information
about disk enclosure LEDs, see Chapter 1 on page 7.
Disk enclosure component
LED
Startup condition
Operating
condition
Fault condition
Front UID module
1. Health
Blinking green
Solid green
Off
2. Fault
Blinking amber
Off
Blinking or Solid
Amber
3. UID
Blinking blue
Off
Off
Status
Green
Solid green
Off
Status
Solid green
Solid green
Blinking or solid
amber
1. Port Link
Blinking or solid
green
Off
2. Port Error
Off
Solid amber
3. 7–segment
display
A number, representing the
box number
Off
4. Fault
Off
Blinking or solid
amber
Solid green
Off
Off
Off
LEDs
Power supply module
Fan module
nl
I/O module
5. Health
6. UID
40
Installation
Blinking green
5 Configuration
Configuration overview
Regardless of the installation environment, operating system, or software tool used to configure the
disk enclosure, the following tasks must be completed:
• Updating controller or controller enclosure firmware or drivers. Instructions are included with the
controller or controller enclosure.
• Updating disk enclosure firmware. Instructions are included with the firmware. For more information,
see “Updating disk enclosure firmware” on page 44.
• Configuring the disk enclosure and its storage.
• Creating the logical storage units (LUNs).
• Entering global controller settings, such as setting the read/write cache ratio, setting the rebuild/expand priority, and setting the redundancy level.
• Identifying the operating system type (also called Host Mode or Profile) of the host that will
access the disk enclosure. This ensures that the disk enclosure will communicate properly with
that host.
• Verifying that the configured storage is visible to the host.
Supported software tools
A variety of configuration, management, and diagnostic tools are supported for use with these disk
enclosures. Which tools are supported for your installation environment is determined by the controller
or controller enclosure to which the disk enclosure is connected.
For support information, see the QuickSpecs and user documents for the controller or controller
enclosure.
D2600/D2700 Disk Enclosure User Guide
41
42
Configuration
6 Operation and management
Included topics:
• Powering on disk enclosures, page 43
• Powering off disk enclosures, page 44
• Updating disk enclosure firmware, page 44
Powering on disk enclosures
IMPORTANT:
Always power on disk enclosures before controller enclosures and servers. This ensures that servers,
during the discovery process, identify the enclosures and installed disk drives as operational devices.
1.
2.
Apply power to each UPS. For more information, see the UPS documentation.
Apply power to the disk enclosures. Press and hold the power on/standby button on the disk
enclosures until the system power LED illuminates solid green.
The LED on the power on/standby button changes from amber to solid green, indicating that the
disk enclosure has transitioned from a standby state to fully powered.
3.
Wait a few minutes for the disk enclosures to complete their startup routines.
IMPORTANT:
If power is applied to the server before disk enclosures complete their startup routine, the server
might not properly discover the storage and may erroneously mark the drives as failed when the
server is powered on.
4.
5.
Apply power to the controller enclosure (if included in the configuration). For more information,
see the controller enclosure documentation.
Power on (or restart) the server with access to the disk enclosures, start the operating system, and
log on as administrator. For more information, see the server documentation.
IMPORTANT:
When you power on the server, the monitor might display a “New Hardware Found” message.
Cancel out of this window to prevent the installation of unsupported software.
6.
Verify that each component is operating properly.
D2600/D2700 Disk Enclosure User Guide
43
Powering off disk enclosures
IMPORTANT:
Always power off disk enclosures after controller enclosures and servers.
IMPORTANT:
When installing a hot-pluggable component, such as a disk drive, it is not necessary to power down
the enclosure.
To power off a disk enclosure:
1.
Power off any attached servers. For more information, see the server documentation.
2.
Power off the controller enclosure (if included in the configuration.) For more information, see the
controller enclosure documentation.
3.
Power off the disk enclosures. Press and hold the power on/standby button on the disk enclosure
for three seconds or until the system power LED changes from green to amber.
4.
Disconnect power cords.
The system is now without power.
Updating disk enclosure firmware
After initial installation and periodically after that, verify that all devices in the configuration have the
latest available firmware installed.
To determine currently-installed firmware and software versions on system components, use
management software utilities such as the HP System Management Homepage, HP Systems Insight
Manager (HP SIM), Storage Management Utility (SMU), or Command Line Interface (CLI).
To obtain the latest-available firmware and software, see the HP website: http://www.hp.com/
support.
To perform the update, follow the procedures for your environment:
• For server connect environments, execute the downloaded Smart Component using the Firmware
Maintenance CD.
• For controller enclosure connect environments, install the firmware download using the Storage
Management Utility (SMU) or Command Line Interface (CLI).
NOTE:
You can receive proactive support alerts, such as Customer Advisories, as well as updates on drivers,
software, firmware, and customer replaceable components, via e-mail through HP Subscriber's Choice.
Sign up for Subscriber's Choice at the following HP website: http://www.hp.com/go/myadvisory
and select the appropriate product.
44
Operation and management
7 Cabling examples
The following basic cabling examples are included:
•
•
•
•
•
Large Form Factor D2600 disk enclosures — maximum capacity configuration
Small Form Factor D2700 disk enclosures — maximum capacity configuration
Dual domain example — best fault tolerance cabling
Dual domain — best performance cabling
Dual domain—alternative cabling
IMPORTANT:
The following illustrations demonstrate connecting disk enclosures to a generic host. Cabling restrictions
may exist for server connect and controller enclosure connect environments. For more information,
see the user documents for your controller or controller enclosure.
D2600/D2700 Disk Enclosure User Guide
45
Large Form Factor D2600 disk enclosures — maximum capacity
configuration
This example illustrates cabling for a single-domain configuration. In this configuration, note the
following:
• P1 on the disk enclosure I/O module is treated as the SAS “in” port.
• P2 on the disk enclosure I/O module is treated as the SAS “out” port.
• In single-domain configurations, one cable path is created between the host, the primary disk enclosure, and additional cascaded disk enclosures. (Shown)
• In dual-domain configurations, two cable paths are created between the host, the primary disk
enclosure, and additional cascaded disk enclosures.
46
Cabling examples
1.
Host (server or controller
enclosure)
2.
Primary disk enclosure
3.
Additional cascaded disk
enclosures
Small Form Factor D2700 disk enclosures — maximum capacity
configuration
This example illustrates cabling for a single-domain configuration. In this configuration, note the
following:
• P1 on the disk enclosure I/O module is treated as the SAS “in” port.
• P2 on the disk enclosure I/O module is treated as the SAS “out” port.
• In single-domain configurations, one cable path is created between the host, the primary disk enclosure, and additional cascaded disk enclosures. (Shown)
• In dual-domain configurations, two cable paths are created between the host, the primary disk
enclosure, and additional cascaded disk enclosures.
1.
Host (server or controller
enclosure)
2.
Primary disk enclosure
3.
Additional cascaded disk
enclosure
D2600/D2700 Disk Enclosure User Guide
47
Dual domain example — best fault tolerance cabling
This example illustrates cabling for a dual-domain configuration in a pattern that offers best possible
fault tolerance. In this configuration, note the following:
• A multi-port, dual-domain controller in the host and dual-port disk drives in the disk enclosure are
required for dual-domain deployments.
• Cables from each I/O module in the disk enclosure to the server or controller enclosure and to
additional cascaded disk enclosures provide dual-domain connectivity.
• The reversing of the cable paths ensures access to the storage, even if the controller, cable, enclosure I/O module, or enclosure power supply fails.
• This example illustrates using a Small Form Factor disk enclosure with one additional cascaded
disk enclosure. When using Large Form Factor disk enclosures, more than one additional disk
enclosure can be cascaded. For more information, see the QuickSpecs for the Large Form Factor
disk enclosure.
48
Cabling examples
1.
Host (server or controller
enclosure)
2.
Primary disk enclosure
3.
Additional cascaded disk
enclosure
4.
Primary path
5.
Additional path
Dual domain — best performance cabling
This example illustrates cabling for a dual-domain configuration in a pattern that offers best possible
performance. In this configuration, note the following:
• A multi-port, dual-domain controller in the host and dual-port disk drives in the disk enclosure are
required for dual-domain deployments.
• Cables from each I/O module in the disk enclosure to the server or controller enclosure and to
additional cascaded disk enclosures provide dual-domain connectivity.
• The symmetrical cabling pattern lowers latency and provides best possible performance.
• This example illustrates using a Small Form Factor disk enclosure with one additional cascaded
disk enclosure. When using Large Form Factor disk enclosures, more than one additional disk
enclosure can be cascaded. For more information, see the QuickSpecs for the Large Form Factor
disk enclosure.
1.
Host (server or controller
enclosure)
2.
Primary disk enclosure
3.
Cascaded disk enclosure
4.
Primary path
5.
Additional path
D2600/D2700 Disk Enclosure User Guide
49
Dual domain—alternative cabling
This example illustrates cabling for a dual-domain configuration in a pattern that offers a balance of
fault tolerance and performance. In this configuration, note the following:
• A multi-port, dual-domain controller in the host and dual-port disk drives in the disk enclosure are
required for dual-domain deployments.
• Cables from each I/O module in the disk enclosure to the server or controller enclosure and to
additional cascaded disk enclosures provide dual-domain connectivity.
• The crossing of the cables between each disk enclosure offers both good fault tolerance and good
performance, but may be confusing to implement and maintain.
• This example illustrates using a Small Form Factor disk enclosure with one additional cascaded
disk enclosure. When using Large Form Factor disk enclosures, more than one additional disk
enclosure can be cascaded. For more information, see the QuickSpecs for the Large Form Factor
disk enclosure.
IMPORTANT:
This cabling scheme is supported for use only when the disk enclosure is connected to a Smart Array
controller.
50
Cabling examples
1.
Host (server or controller
enclosure)
2.
Primary disk enclosure
3.
Cascaded disk enclosure
4.
Primary path
5.
Additional path
8 Troubleshooting
If the enclosure does not initialize
IMPORTANT:
After a power failure, the system automatically returns to the last-powered state (On or Off) when
A/C power is restored.
1.
Ensure that the power on/standby button was pressed firmly and held for approximately three
seconds.
2.
Verify that the power on/standby button LED is green.
3.
Verify that the power source is working:
a.
Verify that the power supplies are working by viewing the power supply LEDs. If necessary,
remove and reinstall the power supplies to verify that they are seated properly.
b.
Remove and inspect AC power cords from both power supplies and reconnect them.
Diagnostic steps
Is the enclosure front fault LED amber?
Answer
Possible Reasons
Actions
No
System functioning properly.
No action required.
Yes
• Front Status and UID module
might not be inserted properly,
might have a damaged connector, or might have failed.
• Be sure that the Front Status and
UID module is undamaged and
is fully seated.
• Possible error condition exists.
• Check rear fault LEDs to isolate
failed component.
• Contact an authorized service
provider for assistance.
D2600/D2700 Disk Enclosure User Guide
51
Is the enclosure rear fault LED amber?
Answers
Possible Reasons
Actions
No
Functioning properly.
No action required
Yes
Rear power and UID module might
not be inserted properly, might
have a damaged connector, or
might have failed.
• Be sure that the rear power and
UID module is undamaged and
is fully seated.
• Contact an authorized service
provider for assistance.
Is the power on/standby button LED amber?
Answer
Possible Reasons
Possible Solutions
No
System functioning properly.
No action required.
Yes
• The power on/standby button
has not been pressed firmly or
held long enough.
• Firmly press the power
on/standby button and hold for
approximately three seconds.
• The system might have experienced a short. Controller firmware might be corrupted.
• Be sure that all components are
fully seated.
• The system midplane and/or
power button/LED assembly
might need to be replaced.
• Contact an authorized service
provider for assistance.
Possible Reasons
Actions
• Power cords not connected or
AC power is unavailable.
• Remove and inspect the AC
power cords from both power
supplies and reconnect them.
• Update controller firmware.
Is the power supply LED amber?
Answers
No
• Power supply functioning properly.
Yes
• Power supply might not be inserted properly, might have a
damaged connector, or might
have failed.
• No action required.
• Be sure that the power supply
is undamaged and is fully
seated.
• Be sure that all pins on connectors and components are
straight.
• Contact an authorized service
provider for assistance.
52
Troubleshooting
Is the I/O module fault LED amber?
Answer
Possible Reasons
Possible Solutions
No
Functioning properly.
No action required.
Yes
• The I/O module is locked.
• Make sure that the I/O module
is seated properly by pressing
the I/O module firmly into its
bay after the handle has clicked
in place.
• The I/O module has failed.
• Other fault condition exists.
CAUTION:
Never remove an I/O
module from the chassis
while the status LED is
green. Removing an
active I/O module can
result in data loss.
• Contact an authorized service
provider for assistance.
Is the fan LED amber?
Answers
Possible Reasons
Actions
No
Functioning properly.
No action required
Yes
Fan might not be inserted properly,
might have a damaged connector,
or might have failed.
• Be sure that the fan is undamaged and is fully seated.
• Contact an authorized service
provider for assistance.
D2600/D2700 Disk Enclosure User Guide
53
Recognizing disk drive failure
In an HP enclosure, a steadily glowing fault LED indicates that a disk drive has failed. Other indications
of failed disk drives are as follows:
• ACU represents failed drives with a distinctive icon.
• HP SIM can detect failed drives remotely across a network. (For more information about HP SIM,
see the documentation on the Management CD.)
• ADU lists all failed drives.
• Operating System log files
For additional information about diagnosing disk drive problems, see the HP ProLiant Servers
Troubleshooting Guide.
Effects of a disk drive failure
When a disk drive fails, all logical drives that are in the same array are affected. Each logical drive
in an array might be using a different fault-tolerance method, so each logical drive can be affected
differently.
• RAID0 configurations cannot tolerate drive failure. If any physical drive in the array fails, all nonfault-tolerant (RAID0) logical drives in the same array also fail.
• RAID1+0 configurations can tolerate multiple drive failures as long as no failed drives are mirrored
to one another (with no spares assigned).
• RAID5 configurations can tolerate one drive failure (with no spares assigned).
• RAID6 with ADG configurations can tolerate simultaneous failure of two drives (with no spares
assigned).
Compromised fault tolerance
If more disk drives fail than the fault-tolerance method allows, fault tolerance is compromised, and
the logical drive fails.
Factors to consider before replacing disk drives
Before replacing a degraded drive:
• Open HP SIM and inspect the Error Counter window for each physical drive in the same array to
confirm that no other drives have any errors. For details, see the HP SIM documentation on the
Management CD.
• Be sure that the array has a current, valid backup.
• Use replacement drives that have a capacity at least as great as that of the smallest drive in the
array. The controller immediately fails drives that have insufficient capacity.
To minimize the likelihood of fatal system errors, take these precautions when removing failed drives:
• Do not remove a degraded drive if any other drive in the array is offline (the online LED is off). In
this situation, no other drive in the array can be removed without data loss.
• Exceptions:
• When RAID1+0 is used, drives are mirrored in pairs. Several drives can be in a failed condition
simultaneously (and they can all be replaced simultaneously) without data loss, as long as no
two failed drives belong to the same mirrored pair.
54
Troubleshooting
• When RAID6 with ADG is used, two drives can fail simultaneously (and be replaced simultaneously) without data loss.
• If the offline drive is a spare, the degraded drive can be replaced.
• Do not remove a second drive from an array until the first failed or missing drive has been replaced
and the rebuild process is complete. (The rebuild is complete when the Online LED on the front of
the drive stops blinking.)
Exceptions:
• In RAID6 with ADG configurations, any two drives in the array can be replaced simultaneously.
• In RAID1+0 configurations, any drives that are not mirrored to other removed or failed drives
can be simultaneously replaced offline without data loss.
Automatic data recovery (rebuild)
When you replace a disk drive in an array, the controller uses the fault-tolerance information on the
remaining drives in the array to reconstruct the missing data (the data that was originally on the
replaced drive) and write it to the replacement drive. This process is called automatic data recovery,
or rebuild. If fault tolerance is compromised, this data cannot be reconstructed and is likely to be
permanently lost.
Time required for a rebuild
• The time required for a rebuild varies considerably, depending on several factors:
• The priority that the rebuild is given over normal I/O operations (you can change the priority setting
by using ACU)
• The amount of I/O activity during the rebuild operation
• The rotational speed of the disk drives
• The availability of drive cache
• The model and age of the drives
• The amount of unused capacity on the drives
• The number of drives in the array (for RAID5 and RAID6 with ADG)
Allow approximately 5 minutes per gigabyte without any I/O activity during the rebuild process. This
figure is conservative, and newer drive models usually require less time to rebuild.
System performance is affected during the rebuild, and the system is unprotected against further drive
failure until the rebuild has finished. Therefore, replace drives during periods of low activity when
possible.
CAUTION:
If the Online LED of the replacement drive stops blinking and the amber fault LED glows, or if other
drive LEDs in the array go out, the replacement drive has failed and is producing unrecoverable disk
errors. Remove and replace the failed replacement drive.
When automatic data recovery has finished, the online LED of the replacement drive stops blinking
and begins to glow steadily.
Failure of another drive during rebuild
If a non-correctable read error occurs on another physical drive in the array during the rebuild process,
the Online LED of the replacement drive stops blinking and the rebuild abnormally terminates. If this
D2600/D2700 Disk Enclosure User Guide
55
situation occurs, restart the server. The system might temporarily become operational long enough to
allow recovery of unsaved data. In any case, locate the faulty drive, replace it, and restore data from
backup.
Handling disk drive failures
If the controller was configured with hardware fault tolerance, complete the following steps after a
disk drive failure:
1.
Determine which physical drive failed. On hot-plug drives, an amber drive failure LED illuminates.
2.
If the unit containing the failed drive does not support hot-plug drives, perform a normal shutdown.
3.
Remove the failed drive and replace it with a drive that is of the same capacity. For hot-plug
drives, after you secure the drive in the bay, the LEDs on the drive each flash once in an alternating
pattern to indicate a successful connection. The online LED flashes, indicating that the controller
recognized the drive replacement and began the recovery process.
4.
Power on the server, if applicable.
5.
The controller reconstructs the information on the new drive, based on information from the
remaining physical drives in the logical drive. While reconstructing the data on hot-plug drives,
the online LED flashes. When the drive rebuild is complete, the online LED is illuminated.
56
Troubleshooting
9 Replacement procedures
Customer self repair (CSR)
Information in “Exploded view” on page 59 identifies hardware components that are customer
replaceable. Using WEBES, ISEE or other diagnostic tools, a support specialist will work with you to
diagnose and assess whether a replacement component is required to address a system problem.
The specialist will also help you determine whether you can perform the replacement.
Parts-only warranty service
Your HP Limited Warranty might include a parts-only warranty service. Under the terms of parts-only
warranty service, HP will provide replacement parts free of charge.
For parts-only warranty service, CSR part replacement is mandatory. If you request HP to replace
these parts, you will be charged for travel and labor costs.
Best practices for replacing hardware components
The following information will help you replace the hardware components on your storage system
successfully.
CAUTION:
Removing a component significantly changes the air flow within the enclosure. Components or a
blanking panel must be installed for the enclosure to cool properly. If a component fails, leave it in
place in the enclosure until a new component is available to install.
Verifying component failure
• Consult HP technical support to verify that the hardware component has failed and that you are
authorized to replace it yourself.
• Additional hardware failures can complicate component replacement. Check your management
utilities to detect any additional hardware problems:
• When you have confirmed that a component replacement is required, you might want to clear
the failure message from the display. This makes it easier to identify additional hardware
problems that might occur while waiting for the replacement part.
• Before installing the replacement part, check the management utility for new hardware problems.
If additional hardware problems have occurred, contact HP support before replacing the
component.
D2600/D2700 Disk Enclosure User Guide
57
Identifying the spare part
Parts have a nine-character spare part number on their label. For some spare parts, the part number
might be available in the management software utility. Alternatively, the HP call center will assist in
identifying the correct spare part number.
Replaceable parts
This product contains the replaceable parts illustrated in “Exploded view” on page 59.
Parts that are available for customer self repair (CSR) are indicated as follows:
• Mandatory CSR where geography permits. Order the part directly from HP and repair the product
yourself. On-site or return-to-depot repair is not provided under warranty.
• Optional CSR. You can order the part directly from HP and repair the product yourself, or you
can request that HP repair the product. If you request repair from HP, you might be charged for
the repair depending on the product warranty.
• No CSR. The replaceable part is not available for self repair. For assistance, contact an HP-authorized service provider
For more information about CSR, contact your local service provider or see the CSR website: http://
www.hp.com/go/selfrepair
To determine the warranty service provided for this product, see the warranty information website:
http://www.hp.com/go/storagewarranty
To order a replacement part, contact an HP-authorized service provider or see the HP Parts Store
online: http://www.hp.com/buy/parts
Replacing the failed component
CAUTION:
Components can be damaged by electrostatic discharge (ESD). Use proper anti-static protection.
• Always transport and store components in an ESD protective enclosure.
• Do not remove the components from the ESD protective enclosure until you are ready to install it.
• Always use ESD precautions, such as a wrist strap, heel straps on conductive flooring, and an
ESD protective smock when handling ESD sensitive equipment.
• Avoid touching the components connector pins, leads, or circuitry.
• Do not place ESD generating material such as paper or non anti-static (pink) plastic in an ESD
protective enclosure with ESD sensitive equipment.
• HP recommends waiting until periods of low storage system activity to replace a component.
• When replacing components at the rear of the rack, cabling might obstruct access to the component.
Carefully move any cables out of the way to avoid loosening any connections. In particular, avoid
cable damage that might be caused by:
• Kinking or bending.
• Disconnecting cables without capping. If uncapped, cable performance might be impaired by
contact with dust, metal or other surfaces.
58
Replacement procedures
• Placing removed cables on the floor or other surfaces, where they might be walked on or otherwise compressed.
Replacement instructions
Printed instructions are shipped with the replacement part. Instructions for all replaceable components
are also posted to the HP website: http://www.hp.com/support/manuals.
Exploded view
D2600/D2700 Disk Enclosure User Guide
59
Description
CSR status
1. Disk drive
Mandatory
2. Voltage Regulator Module (VRM)
Mandatory
3. Front Unit ID
Mandatory
4. Power supply
Mandatory
5. I/O module
Mandatory
6. Backplane
Mandatory
7. Fan module
Mandatory
8. Fan module interconnect board
Mandatory
9. Drive cage
10. Rear power UID module
Not a CSR part
Mandatory
To order a replacement part, contact an HP-authorized service provider or see the HP Parts Store
online: http://www.hp.com/buy/parts
60
Replacement procedures
10 Support and other resources
Contacting HP
Before you contact HP
Be sure to have the following information available before you call or contact HP:
• Technical support registration number (if applicable)
• Product serial number
• Product model name and number
•
•
•
•
•
Product identification number
Applicable error message
Add-on boards or hardware
Third-party hardware or software
Operating system type and revision level
HP contact information
For the name of the nearest HP authorized reseller:
• See the Contact HP worldwide (in English) website:
http://welcome.hp.com/country/us/en/wwcontact.html.
nl
For HP technical support:
• In the United States, for contact options see the Contact HP United States website:
http://welcome.hp.com/country/us/en/contact_us.html. To contact HP by phone:
• Call 1-800-HP-INVENT (1-800-474-6836). This service is available 24 hours a day, 7 days
a week. For continuous quality improvement, calls might be recorded or monitored.
• If you have purchased a Care Pack (service upgrade), call 1-800-633-3600. For more information about Care Packs, see the HP website:
http://www.hp.com/hps.
nl
nl
• In other locations, see the Contact HP worldwide (in English) website:
http:// welcome.hp.com/country/us/en/wwcontact.html.
nl
Subscription service
HP recommends that you register your product at the Subscriber's Choice for Business website:
http://www.hp.com/go/e-updates.
nl
After registering, you will receive email notification of product enhancements, new driver versions,
firmware updates, and other product resources.
D2600/D2700 Disk Enclosure User Guide
61
Documentation feedback
HP welcomes your feedback.
To make comments and suggestions about product documentation, please send a message to
storagedocsFeedback@hp.com. All submissions become the property of HP.
Related information
Websites
• HP: http://www.hp.com
• HP storage: http://www.hp.com/go/storage
• HP support: http://www.hp.com/support
• HP manuals: http://www.hp.com/support/manuals
• HP downloads: http://www.hp.com/support/downloads
Document conventions and symbols
Convention
Element
Blue text: Document conventions and symbols
Cross-reference links and e-mail addresses
Blue, underlined text: http://www.hp.com
Website addresses
• Keys that are pressed
Bold text
Italic text
• Text typed into a GUI element, such as a box
• GUI elements that are clicked or selected, such as
menu and list items, buttons, tabs, and check boxes
Text emphasis
• File and directory names
Monospace text
• System output
• Code
• Commands, their arguments, and argument values
Monospace, italic text
Monospace, bold text
• Code variables
• Command variables
Emphasized monospace text
WARNING!
Indicates that failure to follow directions could result in bodily harm or death.
62
Support and other resources
CAUTION:
Indicates that failure to follow directions could result in damage to equipment or data.
IMPORTANT:
Provides clarifying information or specific instructions.
NOTE:
Provides additional information.
TIP:
Provides helpful hints and shortcuts.
Customer self repair
HP customer self repair (CSR) programs allow you to repair your StorageWorks product. If a CSR
part needs replacing, HP ships the part directly to you so that you can install it at your convenience.
Some parts do not qualify for CSR. Your HP-authorized service provider will determine whether a
repair can be accomplished by CSR.
For more information about CSR, contact your local service provider or see the CSR website:
http://www.hp.com/go/selfrepair.
nl
This product has no customer replaceable components.
Rack stability
Rack stability protects personnel and equipment.
WARNING!
To reduce the risk of personal injury or damage to equipment:
• Extend leveling jacks to the floor.
• Ensure that the full weight of the rack rests on the leveling jacks.
• Install stabilizing feet on the rack.
• In multiple-rack installations, fasten racks together securely.
• Extend only one rack component at a time. Racks can become unstable if more than one component
is extended.
D2600/D2700 Disk Enclosure User Guide
63
64
Support and other resources
11 Regulatory compliance notices
This section contains regulatory notices for the HP StorageWorks D2600/2700 6Gb SAS disk
enclosures.
Regulatory compliance identification numbers
For the purpose of regulatory compliance certifications and identification, this product has been
assigned a unique regulatory model number. The regulatory model number can be found on the
product nameplate label, along with all required approval markings and information. When requesting
compliance information for this product, always refer to this regulatory model number. The regulatory
model number is not the marketing name or model number of the product.
Federal Communications Commission notice
Part 15 of the Federal Communications Commission (FCC) Rules and Regulations has established
Radio Frequency (RF) emission limits to provide an interference-free radio frequency spectrum. Many
electronic devices, including computers, generate RF energy incidental to their intended function and
are, therefore, covered by these rules. These rules place computers and related peripheral devices
into two classes, A and B, depending upon their intended installation. Class A devices are those that
might reasonably be expected to be installed in a business or commercial environment. Class B devices
are those that might reasonably be expected to be installed in a residential environment (for example,
personal computers). The FCC requires devices in both classes to bear a label indicating the interference
potential of the device as well as additional operating instructions for the user.
This is a class A device.
FCC rating label
The FCC rating label on the device shows the classification (A or B) of the equipment.
Class A equipment
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, might cause harmful interference to radio communications. Operation
of this equipment in a residential area is likely to cause harmful interference, in which case the user
will be required to correct the interference at personal expense.
D2600/D2700 Disk Enclosure User Guide
65
Modifications
The FCC requires the user to be notified that any changes or modifications made to this device that
are not expressly approved by Hewlett-Packard Company might void the user's authority to operate
the equipment.
Cables
When provided, connections to this device must be made with shielded cables with metallic RFI/EMI
connector hoods in order to maintain compliance with FCC Rules and Regulations.
Canadian notice (Avis Canadien)
Class A equipment
This class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment
Regulations.
Cet appareil numérique de la class A respecte toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
European Union notice
This product complies with the following EU directives:
• Low Voltage Directive 2006/95/EC
• EMC Directive 2004/108/EC
Compliance with these directives implies conformity to applicable harmonized European standards
(European Norms) which are listed on the EU Declaration of Conformity issued by Hewlett-Packard
for this product or product family. This compliance is indicated by the following conformity marking
placed on the product:
Certificates can be obtained from http://www.hp.com/go/certificates.
Hewlett-Packard GmbH, HQ-TRE, Herrenberger Strasse 140, 71034 Boeblingen, German
Japanese notices
VCCI-A notice
66
Regulatory compliance notices
Japanese power cord statement
Korean notices
Class A equipment
Taiwanese notices
BSMI Class A notice
Chinese notice
Recycling notices
English notice
D2600/D2700 Disk Enclosure User Guide
67
Bulgarian notice
Czech notice
Danish notice
Dutch notice
68
Regulatory compliance notices
Estonian notice
Finnish notice
French notice
German notice
D2600/D2700 Disk Enclosure User Guide
69
Greek notice
Hungarian notice
Italian notice
Latvian notice
70
Regulatory compliance notices
Lithuanian notice
Polish notice
Portuguese notice
Romanian notice
D2600/D2700 Disk Enclosure User Guide
71
Slovak notice
Spanish notice
Swedish notice
Turkish notice
Türkiye Cumhuriyeti: EEE Yönetmeliğine Uygundur
72
Regulatory compliance notices
Index
B
best practices
cabling, 35
power sources, 38
powering on, 39
racking, 30
C
cables
best practices, 35
cable management considerations, 35
connecting cascaded enclosures, 37
connecting power cords, 38
connecting to the controller, 36
SAS, 17, 35
cabling example
dual-domain, 48, 49, 50
single-domain, 46, 47
cabling guidelines, 37
Canadian notice, 66
cascaded disk enclosures, 37
Chinese notices, 67
clearance space, 29
components, 7
disk drive blanks, 10
disk drives, 10
fan, 13
front status and UID, 11
I/O module, 14
power supply, 12
rear power and UID, 16
SAS cables, 17
supported disk drives, 32
configuration
initial tasks, 41
supported software tools, 41
connecting cables to cascaded enclosures, 37
connecting cables to the controller, 36
connecting power cords, 38
controller
preparing for use with disk enclosure, 34
conventions
documentation, 62
text symbols, 62
converting rack rails for round-hole racks, 31
Customer Self Repair (CSR)
defined, 57, 63
parts list, 58
website, 63
D
diagnostic steps, 51
if the enclosure does not initialize, 51
if the enclosure front fault LED is amber, 51
if the enclosure rear fault LED is amber, 52
if the fan LED is amber, 53
if the I/O module fault LED is amber, 53
if the power on/standby LED is amber, 52
if the power supply LED is amber, 52
recognizing disk drive failure, 54
diagnostic tools, 41
disk drives
approved models, 33
caution, 30
defined, 10
installing, 33
LEDs, 10
recognizing disk drive failure, 54
supported, 32
disk enclosure
at startup, 40
available models, 7
example cabling
dual-domain, 48, 49, 50
single-domain, 46, 47
exploded view, 59
illustrated, 7
LFF
component callout, 9
drive bay numbering, 9
front view, 9
rear view, 9
SFF
component callout, 8
drive bay numbering, 8
front view, 8
rear view, 8
verifying the status of, 40
D2600/D2700 Disk Enclosure User Guide
73
document
revision history, 2
documentation
conventions, 62
providing feedback, 62
dual domain
example cabling, 48, 49, 50
E
environmental requirements, 29
European Union notice, 66
F
fan module
defined, 13
LEDs, 13
Federal Communications Commission notice,
65
front status and UID module
defined, 11
LEDs, 11
G
guidelines
cabling, 37
H
hard drive
installing, 32
options, 32
help
obtaining, 24, 61
HP
Subscriber's Choice for Business, 25
technical support, 61
I
I/O module
defined, 14
LEDs, 14
installation
assistance, HP, 24
in the rack, 31
of disk drives, 33
installing
hard drives, 32
J
Japanese notices, 66
74
K
Korean notices, 67
L
LEDs
disk drives, 10
fan module, 13
front status and UID module, 11
I/O module, 14
of enclosure at startup, 40
power supply module, 12
rear power and UID module, 16
M
models, compared, 7
P
parts
replaceable, 58
physical requirements, 29
planning
confirming support for components, 24
confirming warranty support, 25
identifying system components, 25
installation, 24
preparing the site, 29
recording information, 25
signing up for email alerts, 25
the storage configuration, 26
using the overview poster, 25
power
applying to the disk enclosure, 39, 43
connecting power cords, 38
protection against failure, table, 38
providing redundant sources, 29
removing from the disk enclosure, 44
shutdown sequence, 44
startup sequence, 39, 43
power cord
AC, 38
power on/standby button
defined, 17
location, 16
operation, 17
power requirements, 29
power supply module
defined, 12
LEDs, 12
powering off, 44
powering on, 43
best practices, 39
troubleshooting, 51
preparing the controller
for disk enclosure, 34
preparing the server
for disk enclosure, 34
R
Rack Builder
website, 29
rack rails
converting for round-hole racks, 31
rack stability
warning, 63
racking
best practices, 30
procedures, 31
rear power and UID module
defined, 16
LEDs, 16
redundant
power cables, 38
regulatory compliance
Canadian notice, 66
Chinese notices, 67
European Union notice, 66
identification numbers, 65
Japanese notices, 66
Korean notices, 67
Taiwanese notices, 67
revision table, 2
S
SAS cables, connecting, 35
server
preparing for use with disk enclosure, 34
shutdown
sequence, 44
single domain
example cabling, 46, 47
software utilities, supported, 41
specifications
environmental, 19
general, 19
power, 19
startup
sequence, 39, 43
status
rear power and UID module,
disk drives, 10
fan module, 13
front status and UID module, 11
I/O module, 14
power supply module, 12
structural support, 29
Subscriber's Choice, HP, 61
website, 25
symbols in text, 62
T
Taiwanese notices, 67
technical support
HP, 61
service locator website, 62
text symbols, 62
troubleshooting
powering on, 51
U
UID button
front, 12
rear, 17
utilities, supported, 41
V
ventilation requirements, 29
verifying the status
of disk enclosure, 40
W
warnings
personal injury, equipment damage, 30
power related, 38
rack stability, 63
websites
customer self repair, 63
HP ,
HP Subscriber's Choice for Business, 61
weight considerations, 29
D2600/D2700 Disk Enclosure User Guide
75
76
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