Dell Equallogic PS6000 User Manual

Hardware Maintenance

EqualLogic is a registered trademark.

Dell is a trademark of Dell, Inc.

All trademarks and registered trademarks mentioned herein are the property of their respective owners.

Information in this document is subject to change without notice.

Reproduction in any manner whatsoever without the written permission is strictly forbidden.

July 2009

Part Number: 110-0117-R2

Table of Contents

Preface ..................................................................................................................v

Audience ..........................................................................................................v

Organization ....................................................................................................v

Documentation ...............................................................................................vi

Technical Support and Customer Service ......................................................vi

Warranty Information .................................................................................. viii

1 Basic Storage Array Information................................................................. 1-1

Array Front and Back Panels........................................................................ 1-1

Interpreting Operations Panel LEDs ............................................................ 1-2

Using an Electrostatic Wrist Strap ............................................................... 1-5

Shutting Down and Restarting an Array ...................................................... 1-5

2 Maintaining Disks.......................................................................................... 2-1

Removing the Bezel ..................................................................................... 2-1

Interpreting Disk LEDs ................................................................................ 2-2

Disk Handling Requirements ....................................................................... 2-4

Identifying Failed Disks ............................................................................... 2-4

Array Behavior When a Disk Fails .............................................................. 2-4

Removing Disks ........................................................................................... 2-5

Installing Disks............................................................................................. 2-6

Caution: Disk Installation Guidelines and Restrictions ............................... 2-6

Installing the Bezel....................................................................................... 2-8

3 Maintaining Control Modules ...................................................................... 3-1

Control Modules........................................................................................... 3-1

Interpreting Control Module LEDs .............................................................. 3-2

Identifying Control Module Failures............................................................ 3-3

Understanding Failover Behavior ................................................................ 3-3

Maintaining Control Module Firmware ....................................................... 3-4

Network Configuration Recommendations.................................................. 3-5

Connecting Network Cables......................................................................... 3-6

Control Module Handling Requirements ..................................................... 3-8

Removing a Control Module........................................................................ 3-8

Installing a Control Module ....................................................................... 3-11

Replacing the Micro SD Card .................................................................... 3-14

Caution: Removing the Micro SD Card..................................................... 3-14

iii

PS6000 Hardware Maintenance Table of Contents

3. Inserting the Micro SD Card.................................................................. 3-15

4 Maintaining Power Supply Modules............................................................ 4-1

Interpreting the LEDs................................................................................... 4-1

Identifying Failures ...................................................................................... 4-1

Removing a Power Supply and Cooling Module......................................... 4-2

Installing a Power Supply and Cooling Module .......................................... 4-3

A Environmental, Power, and Other Specifications......................................A-1

Index............................................................................................................Index-1

Preface

This manual describes how to maintain the hardware for PS6000 storage arrays. Each array contains hot-swappable power supply and cooling modules, eight or sixteen RAID-protected disks, and dual hot-swappable control modules.

With one or more PS Series arrays, you can create a PS Series group—a selfmanaging, iSCSI storage area network (SAN) that is affordable and easy to use, regardless of scale.

Audience

This manual is designed for the administrators responsible for maintaining PS6000 hardware. Administrators are not required to have extensive network or storage system experience. However, it may be useful to understand:

• Basic networking concepts

• Current network environment

• User disk storage requirements

• RAID configurations

• Disk storage management

Note: Although this manual provides examples of using PS Series arrays in some

common network configurations, detailed information about setting up a network is beyond its scope.

Organization

This manual is organized as follows:

• Chapter 1, Basic Storage Array Information, describes the array front and back panels, how to interpret LEDs, how to use an electrostatic wrist strap, and how to shut down and restart an array.

• Chapter 2, Maintaining Disks, describes how to install and remove disks.

• Chapter 3, Maintaining Control Modules, describes how to install and maintain control modules and replace the micro SD card. It also describes the best way to connect network cables to control modules for high performance and availability.

• Chapter 4, Maintaining Power Supply Modules, describes how to install and remove the modules that provide power and cooling to the array.

PS6000 Hardware Maintenance Preface

• Appendix A, Environmental, Power, and Other Specifications, describes the specifications for a PS6000 array.

Documentation

For detailed information about PS Series arrays, groups, and volumes, see the following documentation:

• Release Notes. Provides the latest information about PS Series arrays.

• Installation and Setup. Describes how to set up the array hardware and create a PS Series group. Use the manual specific to your array model.

• Group Administration. Describes how to use the Group Manager graphical user interface (GUI) to manage a PS Series group. This manual provides comprehensive information about product concepts and procedures.

• CLI Reference. Describes how to use the Group Manager command line interface (CLI) to manage a PS Series group and individual arrays.

• Online help. In the Group Manager GUI, expand and then click

The Installation and Setup and Hardware Maintenance manuals and the Release Notes are printed and shipped with the product. They are also located on the PS Series documentation CD-ROM that is shipped with the product, along with the Group Administration and CLI Reference manuals and the Group Manager online help.

Documentation for Host Integration Tools for Microsoft® Windows® systems is located on the Host Integration Tools CD-ROM that is shipped with the product.

Localized documentation is available on the localization CD-ROM that is shipped with the product in certain countries.

Online Help for help on both the GUI and the CLI.

Tools in the far left panel

Technical Support and Customer Service

Dell’s support service is available to answer your questions about PS Series arrays. If you have an Express Service Code, have it ready when you call. The code helps Dell’s automated-support telephone system direct your call more efficiently.

PS6000 Hardware Maintenance Preface

Contacting Dell

Dell provides several online and telephone-based support and service options. Availability varies by country and product, and some services may not be available in your area.

For customers in the United States, call 800-945-3355.

Note: If you do not have an Internet connection, you can find contact information

on your purchase invoice, packing slip, bill, or Dell product catalog.

To contact Dell for sales, technical support, or customer service issues:

1. Visit

support.dell.com.

2. Verify your country or region in the Choose A Country/Region drop-down

menu at the bottom of the window.

3. Click

4. Select the appropriate service or support link based on your need.

5. Choose the method of contacting Dell that is convenient for you.

Online Services

You can learn about Dell products and services on the following websites:

• www.dell.com/

• www.dell.com/ap/ (Asian/Pacific countries only)

•

www.dell.com/jp (Japan only)

•

www.euro.dell.com (Europe only)

•

www.dell.com/la (Latin American countries)

•

www.dell.ca (Canada only)

You can access Dell Support through the following websites:

• support.dell.com

• support.dell.com/EqualLogic

• support.jp.dell.com (Japan only)

•

support.euro.dell.com (Europe only)

vii

PS6000 Hardware Maintenance Preface

Warranty Information

The PS6000 array warranty is included in the shipping box. For information about registering a warranty, visit

support.dell.com/EqualLogic.

viii

1 Basic Storage Array Information

This chapter includes basic information about PS6000 storage arrays.

Array Front and Back Panels

The front and back panels of a PS6000 array are shown in the following figures.

Figure 1-1: PS6000 Front Panel

The disk drives are accessible from the front. See Chapter 2 for detailed information about disk drives.

The components on the back of a PS6000 are shown in Figure 1-2 and described in Table 1-1.

1–1

PS6000 Hardware Maintenance Basic Array Information

Figure 1-2: PS6000 Back Panel

Table 1-1: Back Panel Detail Description

Part Description

Power supply and cooling modules. From left to right, they are numbered 1 and

Control modules. From left to right, they are numbered 1 and 0.

Operation panel LED. Includes LEDs that show the status of the array (error and warning conditions), power status, and location.

Power switches on the power supply and cooling modules. Turns power on and off to the array.

Serial number label.

Interpreting Operations Panel LEDs

The PS6000 operations panel monitors array hardware components. The panel is not redundant, but an array can continue to operate if it fails. See your array support provider for information about servicing the operations panel.

Note: The serial number for your array is on a label on the operations panel.

1–2

PS6000 Hardware Maintenance Basic Array Information

Figure 1-3 shows the operations panel LEDs, which can alert you to errors and conditions that require your attention. Table 1-2 describes the LEDs. Report any serious problems to your array support provider.

For information about other array LEDs, see Interpreting Disk LEDs on page 2-2, Interpreting Control Module LEDs on page 3-2, and Interpreting the LEDs on page 4-1.

Figure 1-3: Operations Panel

Table 1-2: Operations Panel Descriptions

Item Status Description

Off No power.

Power LED

Array locator LED

Identifier switch

Green Power.

Off No power or normal condition.

Flashing orange Administrator enabled the array locator function.

N/A Not used.

1–3

PS6000 Hardware Maintenance Basic Array Information

Table 1-2: Operations Panel Descriptions (Continued)

Item Status Description

Off No power or normal condition.

Flashing orange One or more of the following has occurred:

Warning condition LED

Critical error condition LED

Off No power or normal condition.

Flashing orange One or more of the following has occurred:

• RAID set is degraded but still functioning.

• RAID set (volume level) has lost blocks.

• Component temperature is near a limit.

• Fan failed or fan RPMs exceed limit.

• Power supply is not installed or has no power.

• Cache battery has less than 72 hours of charge.

• Only one control module installed or control module has failed over.

• Control module has insufficient RAM.

• Syncing active and secondary control modules.

• No communication between control modules.

• Installed spare disk does not have enough capacity to replace a disk in a RAID set.

• A non-critical hardware component failed.

• Real-time clock battery is low.

• RAID is not functioning.

• Lost block table is full.

• Temperature exceeds upper or lower limit.

• Control module cache has lost data.

• A cooling module is not installed.

• Both fans on a cooling module have failed.

• Cache battery temperature is too high to charge battery.

• NVRAM coin cell battery failed.

• Cache contains data that does not belong to any of the installed disks.

• More than one valid RAID set exists in array.

• Control modules are different models.

• A critical hardware component has failed.

• Operations panel failed or not installed.

• Storage enclosure processor that monitors array components has experienced a failure.

1–4

PS6000 Hardware Maintenance Basic Array Information

Table 1-2: Operations Panel Descriptions (Continued)

Item Status Description

N/A This label contains the serial number for your array. If

you contact your PS Series support provider, you may

Serial number label

need to provide this number.

Using an Electrostatic Wrist Strap

When handling the array chassis, disks, or control modules, you must use an electrostatic protection device to prevent electrostatic discharge.

An electrostatic wrist strap is included in the shipping box.

Figure 1-4: Electrostatic Wrist Strap

Shutting Down and Restarting an Array

A PS6000 array includes redundant, hot-swappable disks, power supplies, and control modules (if a dual control module array). You can remove a redundant component without affecting operation if a functioning component is available. Otherwise, it is recommended that you cleanly shut down the array and turn off power before removing a component.

Note: When an array is shut down, any volumes with data on the array will be set

offline until the array is successfully restarted. This may affect initiators that are connected to the volumes.

1–5

2 Maintaining Disks

A PS6000 array includes up to 16 hot-swappable disks, either Serial Attached SCSI (SAS) disks or Serial ATA (SATA) disks. Disk maintenance topics apply to both SAS and SATA disks.

Removing the Bezel

To access the disks in a PS6000, you must remove the bezel.

The bezel comes with a lock, which helps protect the disks from being tampered with or accidentally removed.

To unlock and remove the bezel:

1. Insert the bezel key and turn it clockwise to unlock the bezel. See Figure 2-1.

Figure 2-1: Unlocking the Bezel

2. Push the bezel release latch up to disengage the bezel from the chassis. See Figure 2-2.

Figure 2-2: Pushing Up the Bezel Release Latch

2–1

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