HP D2600 User Manual

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

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

DescriptionDateEdition

Initial release. Described server connect environments.September 2009First

Added information about dual domain configurations; reworked information

February 2010Second

about server connect environments and added information about controller enclosure connect environments; reworked existing and added new cabling illustrations.

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 .................................................................................................................. 23

Required items .......................................................................................................................... 23

Preliminary tasks ....................................................................................................................... 24

Determining who will install and configure the disk enclosure ................................................... 24

Confirming support for your hardware and software components .............................................. 24

Signing up to automatically receive advisories, notices, and other messages .............................. 25

Confirming warranty support and finding out about related services .......................................... 25

Gathering and recording information .................................................................................... 25

Planning the storage configuration ........................................................................................ 25

D2600/D2700 Disk Enclosure User Guide 3

System and performance expectations ............................................................................ 26

Striping methods .......................................................................................................... 26

RAID levels ................................................................................................................. 26

Disk drive sizes and types ............................................................................................. 27

Spare disks ................................................................................................................. 27

Array sizing ................................................................................................................ 28

Preparing the site ...................................................................................................................... 29

Racking the disk enclosure ......................................................................................................... 30

Rack installation best practices ............................................................................................. 30

Racking procedures ............................................................................................................ 31

Installing disk drives in the enclosure ........................................................................................... 32

Disk drive options ............................................................................................................... 32

Disk drive guidelines ........................................................................................................... 32

Installing a disk drive .......................................................................................................... 32

Installing SAS controllers or controller enclosures ........................................................................... 34

Preparing the server .................................................................................................................. 34

Connecting SAS cables and power cords ..................................................................................... 35

Overview .......................................................................................................................... 35

Cabling best practices ........................................................................................................ 35

Connecting SAS cables to the server or controller enclosure ..................................................... 36

Connecting SAS cables to cascaded disk enclosures ............................................................... 37

Connecting power cords ..................................................................................................... 38

Powering on the disk enclosure ................................................................................................... 39

Power on best practices ....................................................................................................... 39

Power on procedures .......................................................................................................... 39

Verifying the operating status of the disk enclosures ....................................................................... 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 .................................. 46

Small Form Factor D2700 disk enclosures — maximum capacity configuration .................................. 47

Dual domain example — best fault tolerance cabling .................................................................... 48

Dual domain — best performance cabling ................................................................................... 49

Dual domain—alternative cabling ............................................................................................... 50

8 Troubleshooting ............................................................................... 51

If the enclosure does not initialize ............................................................................................... 51

Diagnostic steps ....................................................................................................................... 51

Is the enclosure front fault LED amber? .................................................................................. 51

Is the enclosure rear fault LED amber? ................................................................................... 52

Is the power on/standby button LED amber? .......................................................................... 52

Is the power supply LED amber? ........................................................................................... 52

Is the I/O module fault LED amber? ...................................................................................... 53

Is the fan LED amber? ......................................................................................................... 53

Recognizing disk drive failure ..................................................................................................... 54

Effects of a disk drive failure ................................................................................................ 54

Compromised fault tolerance ............................................................................................... 54

Factors to consider before replacing disk drives ...................................................................... 54

Automatic data recovery (rebuild) ......................................................................................... 55

Time required for a rebuild ............................................................................................ 55

Failure of another drive during rebuild ............................................................................ 55

Handling disk drive failures ........................................................................................... 56

9 Replacement procedures ................................................................... 57

Customer self repair (CSR) ......................................................................................................... 57

Parts-only warranty service ................................................................................................... 57

Best practices for replacing hardware components ........................................................................ 57

Verifying component failure ................................................................................................. 57

Identifying the spare part .................................................................................................... 58

Replaceable parts ..................................................................................................................... 58

Replacing the failed component .................................................................................................. 58

Replacement instructions ............................................................................................................ 59

Exploded view ......................................................................................................................... 59

10 Support and other resources ............................................................ 61

Contacting HP .......................................................................................................................... 61

Before you contact HP ......................................................................................................... 61

HP contact information ........................................................................................................ 61

Subscription service ............................................................................................................ 61

Documentation feedback ..................................................................................................... 62

Related information ................................................................................................................... 62

Websites ........................................................................................................................... 62

Document conventions and symbols ............................................................................................. 62

Customer self repair .................................................................................................................. 63

Rack stability ............................................................................................................................ 63

11 Regulatory compliance notices ......................................................... 65

Regulatory compliance identification numbers .............................................................................. 65

Federal Communications Commission notice ................................................................................ 65

FCC rating label ................................................................................................................ 65

Class A equipment ....................................................................................................... 65

Modifications .................................................................................................................... 66

Cables .............................................................................................................................. 66

Canadian notice (Avis Canadien) ............................................................................................... 66

Class A equipment ............................................................................................................. 66

European Union notice .............................................................................................................. 66

Japanese notices ...................................................................................................................... 66

VCCI-A notice .................................................................................................................... 66

Japanese power cord statement ............................................................................................ 67

Korean notices ......................................................................................................................... 67

Class A equipment ............................................................................................................. 67

Taiwanese notices ..................................................................................................................... 67

BSMI Class A notice ........................................................................................................... 67

Chinese notice ................................................................................................................... 67

Recycling notices ...................................................................................................................... 67

English notice .................................................................................................................... 67

Bulgarian notice ................................................................................................................. 68

Czech notice ..................................................................................................................... 68

D2600/D2700 Disk Enclosure User Guide 5

Danish notice .................................................................................................................... 68

Dutch notice ...................................................................................................................... 68

Estonian notice .................................................................................................................. 69

Finnish notice ..................................................................................................................... 69

French notice ..................................................................................................................... 69

German notice ................................................................................................................... 69

Greek notice ...................................................................................................................... 70

Hungarian notice ............................................................................................................... 70

Italian notice ...................................................................................................................... 70

Latvian notice .................................................................................................................... 70

Lithuanian notice ................................................................................................................ 71

Polish notice ...................................................................................................................... 71

Portuguese notice ............................................................................................................... 71

Romanian notice ................................................................................................................ 71

Slovak notice ..................................................................................................................... 72

Spanish notice ................................................................................................................... 72

Swedish notice ................................................................................................................... 72

Turkish notice ..................................................................................................................... 72

Index ................................................................................................. 73

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

Large Form Factor disk enclosureSmall 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

3. UID push button and LED1. Rack-mounting thumbscrews

4. Enclosure status LEDs2. Disk drive in bay 9

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

7. UID push button and LED4. I/O module A1. Power supply 1

8. Enclosure status LEDs5. I/O module B2. Power supply 2

9. Power push button and LED6. Fan 23. Fan 1

Hardware8

Large Form Factor disk enclosure chassis

Front view

3. UID push button and LED1. Rack-mounting thumbscrews

4. Enclosure status LEDs2. Disk drive in bay 6

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

7. UID push button and LED4. I/O module A1. Power supply 1

8. Enclosure status LEDs5. I/O module B2. Power supply 2

9. Power push button and LED6. Fan 23. Fan 1

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.

1. Locate/Fault

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.

Blue

Green2. Status

Blinking

DescriptionLED statusLED colorLED

Used to locate driveSlow blinking

Used for critical locateMedium blinking

Used for reserved locateFast blinking

Drive faultSolidAmber

Drive is spinning up or down and is not ready

Drive activityFast blinking

Ready for activitySolid

Hardware10

Front status and UID module

The front status and UID module includes status LEDs and a unit identification (UID) button.

Front UID module LEDs

DescriptionLED statusLED colorLED iconLED

No power or firmware faultOff

Green1. Health

Amber2. Fault

Blue3. UID

Blinking

Off

Blinking

Solid

Off

Blinking

Solid

Enclosure is starting up and not ready, performing POST

Power is onSolid

No fault conditions or no power

A fault of lesser importance was detected in the enclosure chassis or modules

A fault of greater importance was detected in the enclosure chassis or modules

Not being identified or power is off

Unit is being identified from the management utility

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.

DescriptionLED statusLED color

No powerOffOff

Normal, no fault conditionsSolidGreen

Hardware12

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.

Green

Amber

DescriptionLED statusLED color

No powerOffOff

The module is being identifiedBlinking

Normal, no fault conditionsSolid

Fault conditions detectedBlinking

Problems detecting the moduleSolid

D2600/D2700 Disk Enclosure User Guide 13

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.

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.

Large Form Factor I/O moduleSmall Form Factor I/O module

4. Double 7–segment display1. Manufacturing diagnostic port

5. I/O module LEDs2. SAS Port 1

NOTE:

The following image illustrates LEDs on the Small Form Factor I/O module.

Hardware14

DescriptionLED statusLED colorLED iconLED

3. 7–segment display

Off

Greenn/a1. SAS Port Link The port is being identified by

Ambern/a2. SAS Port Error

n/an/a

Blue4. UID

Blinking

Solid

Off

Solid

Off

No cable, no power, or port not connected

an application client

Healthy, active linkSolid

Normal, no errors detectedOff

Error detected by application client

Error, fault conditions detected on the port by the I/O module

No cable, no power, enclosure not detected

The enclosure box numberNumber

Not being identified or no power

Module is being identified, from the management utility

No power or firmware malfunction

Green5. Health Enclosure is starting up and not

Amber6. Fault

Blinking

Solid

ready, performing POST

Normal, power is onSolid

Normal, no fault conditionsOff

A fault of lesser importanceBlinking

A fault of greater importance, I/O failed to start

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

DescriptionStatusLED colorLED iconLED

4. On/Standby

Off

Blue1. UID

Green2. Health

Amber3. Fault

Blinking

Off

Blinking

Solid

Not being identified or no power

Unit is being identified, either from the UID button being pushed or from the management utility

No powerOff

Enclosure is starting up and not ready, performing POST

Normal, power is onSolid

Normal, no fault conditions

A fault of lesser importance

A fault of greater importance

Power is onSolidGreen

Standby powerSolidAmber

Hardware16

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 17

Hardware18

2 Technical specifications

Physical specifications

Dimensions 45.0 cm (17.99 in)Width

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)

8.8 cm (3.47 in)Height (2U)

56.7 cm (22.3 in)Depth

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))

Operating

Shipping

Operating

10°C to 35°C (50°F to 95°F) Maximum rate of change is 10ºC/Hr (18ºF/Hr)

–40°C to 66°C (–40°F to 150°F) Maximum rate of change is 20ºC/Hr (36ºF/Hr)

10% to 90% relative humidity (Rh) 28ºC (82.4ºF) Maximum wet bulb temperature noncondensing

5% to 95% relative humidity (Rh)Non-operating

3048 m (10,000 ft) This value might be limited by the type and number of options installed.

9144 m (30,000 ft)Non-operating

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.)

Input power (max)

D2600/D2700 Disk Enclosure User Guide 19

100 to 240 VACInput voltage

50 to 60 HzInput frequency

2.68 A at 115 VAC typical, 4 A maximumInput current

300 W

Technical specifications20

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 21

Deployment types22

4 Installation

Installation overview

Installation steps include:

1. Locating Required items, page 23

2. Completing Preliminary tasks, page 24

3. Preparing the site, page 29

4. Racking the disk enclosure, page 30

5. Installing disk drives in the enclosure, page 32

6. Connecting SAS cables and power cords, page 35

7. Powering on the disk enclosure, page 39

8. 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.

Installation24

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 enclos-

ures.

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.

Installation26

Best practicesSummary

Data redundancy

RAID method

RAID0

RAID1

RAID5

RAID6

RAID0 is optimized for I/O speed and efficient use of physical disk capacity, but provides no data redundancy.

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.

RAID5 provides a balance of data redundancy, I/O speed and efficient use of physical disk space.

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.

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.

In general, RAID1 virtual disks provide better performance characteristics over a wider range of application workloads than RAID5.

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.

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.

Medium

High

StripingNone

MirroringHigh

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.

Installation28

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 in-

stalled 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 enclos-

ures 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.

Installation30

Racking procedures

1. Position left and right rack rails at the desired 'U' position in the rack, adjusting the rails to fit the

rack, as needed (1).

2. 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. Remove the drive blank.

Installation32

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.

Installation34

Connecting SAS cables and power cords

Overview

Connecting cables includes the following steps:

1. Reading the Cabling best practices, page 35.

2. Connecting SAS cables to the server or controller enclosure, page 36.

3. Connecting SAS cables to cascaded disk enclosures, page 37.

4. 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 discon-

nected 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 en-

closure, 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.

Installation36

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 en-

closure, 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 mm2or 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.

Level of ProtectionConnection Method

Connected to:

• one power source

Connected to:

• two separate power

sources

Connected to:

• two UPS

• two separate power

sources

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. 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. 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.

Installation38

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. Apply power to each UPS.

2. 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. Apply power to the controller enclosure (if included in the configuration).

5. 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.

Front UID module

LEDs

Power supply module

Fan module

LEDDisk enclosure component

1. Port Link

Startup condition

condition

OffBlinking amber2. Fault

Solid greenSolid greenStatus

Blinking or solid green

Fault conditionOperating

OffSolid greenBlinking green1. Health

Blinking or Solid Amber

OffOffBlinking blue3. UID

OffSolid greenGreenStatus

Blinking or solid amber

Off

I/O module

Installation40

3. 7–segment display

A number, representing the box number

Off4. Fault

Solid amberOff2. Port Error

Off

Blinking or solid amber

OffSolid greenBlinking green5. Health

OffOff6. UID

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 re-

build/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

Configuration42

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. Apply power to each UPS. For more information, see the UPS documentation.

2. 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. Apply power to the controller enclosure (if included in the configuration). For more information,

see the controller enclosure documentation.

5. 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.

Operation and management44

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 en-

closure, 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

enclosures

Cabling examples46

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 en-

closure, 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, enclos-

ure 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.

1. Host (server or controller

2. Primary disk enclosure

3. Additional cascaded disk

4. Primary path

5. Additional path

enclosure)

enclosure

Cabling examples48

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

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

IMPORTANT:

This cabling scheme is supported for use only when the disk enclosure is connected to a Smart Array controller.

1. Host (server or controller

enclosure)

2. Primary disk enclosure

3. Cascaded disk enclosure

4. Primary path

5. Additional path

Cabling examples50

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?

Yes

• Front Status and UID module

might not be inserted properly, might have a damaged connector, or might have failed.

• Possible error condition exists.

ActionsPossible ReasonsAnswer

No action required.System functioning properly.No

• Be sure that the Front Status and

UID module is undamaged and is fully seated.

• 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?

ActionsPossible ReasonsAnswers

No action requiredFunctioning properly.No

Yes

Rear power and UID module might not be inserted properly, might have a damaged connector, or might have failed.

Is the power on/standby button LED amber?

Yes

• The power on/standby button

has not been pressed firmly or held long enough.

• The system might have experi-

enced a short. Controller firmware might be corrupted.

• The system midplane and/or

power button/LED assembly might need to be replaced.

• Be sure that the rear power and

UID module is undamaged and is fully seated.

• Contact an authorized service

provider for assistance.

Possible SolutionsPossible ReasonsAnswer

No action required.System functioning properly.No

• Firmly press the power

on/standby button and hold for approximately three seconds.

• Be sure that all components are

fully seated.

• Update controller firmware.

• Contact an authorized service

provider for assistance.

Is the power supply LED amber?

Yes

• Power cords not connected or

AC power is unavailable.

• Power supply functioning prop-

erly.

• Power supply might not be inser-

ted properly, might have a damaged connector, or might have failed.

ActionsPossible ReasonsAnswers

• Remove and inspect the AC

power cords from both power supplies and reconnect them.

• No action required.

• Be sure that the power supply

is undamaged and is fully seated.

• Be sure that all pins on connect-

ors and components are straight.

• Contact an authorized service

provider for assistance.

Troubleshooting52

Is the I/O module fault LED amber?

Possible SolutionsPossible ReasonsAnswer

No action required.Functioning properly.No

Yes

Is the fan LED amber?

• The I/O module is locked.

• The I/O module has failed.

• Other fault condition exists.

• 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.

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.

ActionsPossible ReasonsAnswers

Yes

Fan might not be inserted properly, might have a damaged connector, or might have failed.

No action requiredFunctioning properly.No

• Be sure that the fan is undam-

aged 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 non-

fault-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.

Troubleshooting54

• When RAID6 with ADG is used, two drives can fail simultaneously (and be replaced simultan-

eously) 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.

Troubleshooting56

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-author-

ized 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.

Replacement procedures58

• Placing removed cables on the floor or other surfaces, where they might be walked on or oth-

erwise 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

CSR statusDescription

Mandatory1. Disk drive

Mandatory2. Voltage Regulator Module (VRM)

Mandatory3. Front Unit ID

Mandatory4. Power supply

Mandatory5. I/O module

Mandatory6. Backplane

Mandatory7. Fan module

Mandatory8. Fan module interconnect board

Not a CSR part9. Drive cage

Mandatory10. Rear power UID module

To order a replacement part, contact an HP-authorized service provider or see the HP Parts Store online: http://www.hp.com/buy/parts

Replacement procedures60

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.

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 inform-

ation about Care Packs, see the HP website:

http://www.hp.com/hps.

• In other locations, see the Contact HP worldwide (in English) website:

http:// welcome.hp.com/country/us/en/wwcontact.html.

Subscription service

HP recommends that you register your product at the Subscriber's Choice for Business website:

http://www.hp.com/go/e-updates.

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

ElementConvention

Cross-reference links and e-mail addressesBlue text: Document conventions and symbols

Website addressesBlue, underlined text: http://www.hp.com

• Keys that are pressed

Bold text

Monospace text

Monospace, italic text

Monospace, bold text

WARNING!

Indicates that failure to follow directions could result in bodily harm or death.

• 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 emphasisItalic text

• File and directory names

• System output

• Code

• Commands, their arguments, and argument values

• Code variables

• Command variables

Emphasized monospace text

Support and other resources62

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.

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

Support and other resources64

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

Regulatory compliance notices66

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

Regulatory compliance notices68

Estonian notice

Finnish notice

French notice

German notice

D2600/D2700 Disk Enclosure User Guide 69

Greek notice

Hungarian notice

Italian notice

Latvian notice

Regulatory compliance notices70

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

Regulatory compliance notices72

Index

best practices

cabling, 35 power sources, 38 powering on, 39 racking, 30

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

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

environmental requirements, 29 European Union notice, 66

fan module

defined, 13

LEDs, 13 Federal Communications Commission notice,

front status and UID module

defined, 11

LEDs, 11

guidelines

cabling, 37

hard drive

installing, 32

options, 32 help

obtaining, 24, 61 HP

Subscriber's Choice for Business, 25

technical support, 61

I/O module

defined, 14

LEDs, 14 installation

assistance, HP, 24

in the rack, 31

of disk drives, 33 installing

hard drives, 32

Japanese notices, 66

Korean notices, 67

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

models, compared, 7

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

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

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

Taiwanese notices, 67 technical support

HP, 61

service locator website, 62 text symbols, 62 troubleshooting

powering on, 51

UID button

front, 12

rear, 17 utilities, supported, 41

ventilation requirements, 29 verifying the status

of disk enclosure, 40

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

HP D2600 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

D2600/D2700 Disk Enclosure User Guide

1 Hardware

Overview

Small Form Factor disk enclosure chassis

Front view

Drive bay numbering

Rear view

Large Form Factor disk enclosure chassis

Front view

Drive bay numbering

Rear view

Disk drives

Disk drive LEDs

Disk drive blanks

Front status and UID module

Front UID module LEDs

Unit identification (UID) button

Power supply module

Power supply LED

Fan module

Fan module LED

I/O module

I/O module LEDs

Rear power and UID module

Rear power and UID module LEDs

Unit identification (UID) button

Power on/standby button

SAS cables

2 Technical specifications

Physical specifications

Power and environmental specifications

3 Deployment types

4 Installation

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

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

5 Configuration

Configuration overview

Supported software tools

6 Operation and management

Powering on disk enclosures

Powering off disk enclosures

Updating disk enclosure firmware

7 Cabling examples