EqualLogic PS Series Manuale del proprietario

Hardware Maintenance

September 2006

EqualLogic is a registered trademark of EqualLogic, Inc.

All trademarks and registered trademarks mentioned herein are the property of their

respective owners.

Possession, use, or copying of the documentation or the software described in this

publication is authorized only under the license agreement.

EqualLogic, Inc. will not be held liable for technical or editorial errors or omissions

contained herein. Information in this document is subject to change.

Part Number: 110-0003-R6

iii

Table of Contents

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

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

Organization ...................................................................................................vi

Conventions ....................................................................................................vi

Documentation and Technical Support .........................................................vii

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

Restricted Access Requirement ................................................................... viii

Regulatory Agency Notice and Notes ......................................................... viii

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

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

Interpreting LEDs......................................................................................... 1-2

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

Shutting Down and Restarting an Array ...................................................... 1-6

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

Disk Handling Requirements ....................................................................... 2-1

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

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

Installing Disks............................................................................................. 2-3

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

Control Module Handling Requirements ..................................................... 3-1

Identifying Control Module Failures............................................................ 3-2

Understanding Failover Behavior ................................................................ 3-2

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

Connecting Network Cables......................................................................... 3-4

Installing a Control Module ......................................................................... 3-7

Removing a Control Module........................................................................ 3-9

Replacing the Compact Flash Card ............................................................ 3-11

Replacing the Cache Battery ...................................................................... 3-12

Replacing the NVRAM Coin Cell Battery................................................. 3-15

4 Maintaining Power Supplies......................................................................... 4-1

Identifying Power Supply Failures............................................................... 4-1

Identifying the Power Supply Model ........................................................... 4-1

Removing a Power Supply ........................................................................... 4-2

Installing a Power Supply............................................................................. 4-3

PS Series 50E to 400E Hardware Maintenance Table of Contents

5 Maintaining Fan Trays.................................................................................. 5-1

Identifying Fan Tray Failures....................................................................... 5-1

Removing a Fan Tray ................................................................................... 5-1

Installing a Fan Tray..................................................................................... 5-2

A Environmental, Power, and Physical Requirements .................................A-1

B Control Module Models................................................................................B-1

Model Face Plates ........................................................................................B-1

Model Differences........................................................................................B-2

Setting Up a Serial Connection ....................................................................B-2

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

Preface

This manual describes how to maintain the hardware for EqualLogic PS Series

50E to 400E storage arrays. Each array contains hot-swappable fans and power

supplies, up to fourteen RAID-protected disks, and single or dual hot-swappable

control modules, each with three Gigabit Ethernet interfaces.

With one or more PS Series storage arrays, you can create a PS Series group—a

self-managing, iSCSI storage area network (SAN) that is affordable and easy to

use, regardless of scale. To install the array hardware and set up a group, see the

PS Series 50E to 400E QuickStart.

Note: For PS Series 50E to 400E storage arrays, PS Series Firmware Version 2.2

and higher firmware versions support the Type II control module, which

can be identified by a blue face plate and single serial port. The figures in

this manual show arrays installed with Type II control modules.

However—unless otherwise noted—the information herein also applies to

the functionally equivalent Type I control module, which can be identified

by a dark gray face plate and two serial ports.

Do not mix different control module models in an array. However, a

PS Series group can include arrays with Type II control modules and

arrays with Type I control modules, if all the arrays are running compatible

firmware, as described in the PS Series Release Notes.

Audience

This manual is designed for the administrators responsible for maintaining

PS Series 50E to 400E storage array hardware. Administrators are not required to

have extensive network or storage system experience. However, it is useful to

understand:

• Basic networking concepts

• Current network environment

• User disk storage requirements

• Disk storage management

• RAID configurations

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

in some common network configurations, detailed information about

setting up a network is beyond its scope.

PS Series 50E to 400E Hardware Maintenance Preface

Organization

This manual is organized as follows:

• Chapter 1, Basic Array Information, describes the PS Series storage 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 cache battery, NVRAM coin cell

battery, and compact flash card. It also describes the best way to connect

network cables to control modules for high performance and availability.

• Chapter 5, Maintaining Fan Trays, describes how to install and remove fan

trays in an array.

• Chapter 4, Maintaining Power Supplies, describes how to determine the type

of power supply and how to install and remove a power supply in an array.

• Appendix A, Environmental, Power, and Physical Requirements, describes

the requirements for an array.

• Appendix B, Control Module Models, explains the differences between a

Type I control module and a Type II control module.

Conventions

Conventions used in the manual are shown in the following table.

Convention Usage

When displayed, indicates that you must attach an

electrostatic wrist strap to your wrist and a grounded

device to prevent electrostatic discharge.

When displayed, indicates a potential personal injury

hazard.

PS Series 50E to 400E Hardware Maintenance Preface

vii

Documentation and Technical Support

For detailed information about PS Series storage arrays, groups, and volumes, see

the following documentation:

•ReleaseNotes.Provides the latest information about PS Series storage arrays.

•QuickStart. Describes how to set up PS Series 50E to 400E storage array

hardware and create a PS Series group.

•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.

•Hardware Maintenance.Provides information about maintaining PS Series

50E to 400E storage array hardware.

The QuickStart and Hardware Maintenance manuals are printed and shipped with

the product. They are also located on the documentation CD-ROM that is shipped

with the product, along with the Group Administration and CLI Reference

manuals and the Group Manager online help.

In addition, the Host Integration Tools for Windows®systems are available on the

EqualLogic website and on a CD-ROM that is shipped with the product.

Technical support on EqualLogic products is available for customers with arrays

under warranty and customers with a valid support contract. You can obtain

technical support in the following ways:

• Visit the EqualLogic Customer Support website to download the latest

documentation and firmware. Go to www.equallogic.com and log in to

your customer support account. If you do not have an account, create one.

• In the United States, call 877-887-7337. International customers should call

+00 1 919-767-5729. If the issue is urgent, ask to speak with a member of the

EqualLogic Customer Support team.

• From the EqualLogic Customer Support website, you can submit a service

request.

• Send e-mail to [email protected] and clearly describe the issue or

problem.

PS Series 50E to 400E Hardware Maintenance Preface

viii

Warranty Information

The PS Series storage array warranty is included in the shipping box. For

information about registering a warranty, visit the EqualLogic website,

www.equallogic.com.

Restricted Access Requirement

PS Series storage arrays must be installed in a restricted access location, which is

an area that is intended only for qualified or trained personnel.

Regulatory Agency Notice and Notes

PS Series storage arrays have been tested and found to comply with the limits for

a Class A digital device, pursuant to part 15 of the FCC rules and other

international standards. 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 instruction manual, may cause harmful

interference to radio communications. Operation of this equipment in a residential

area is likely to cause harmful interference, which the user will be required to

correct at their own expense.

Regulatory Notes

Service Note A PS Series storage array has more than one power supply cord.

Disconnect both power supply cords before servicing to avoid

electric shock.

Warning When an approved SFP (small form factor pluggable) optical

network connector is installed, a PS Series storage array is a

Class 1 laser product. Using an unapproved SFP may void some

safety certifications. See your PS Series array service provider for

a list of approved SFPs, or purchase an SFP from EqualLogic.

There is a danger of explosion if a PS Series storage array control

module cache battery is incorrectly replaced. Replace a battery

only with the same or equivalent battery, as recommended by the

manufacturer, and use the instructions in this document. Discard

used batteries according to the manufacturer’s instructions.

1–1

1 Basic Array Information

Basic information about PS Series 50E to 400E storage arrays include:

•Front and Back Panels on page 1-1

•Interpreting LEDs on page 1-2

•Using an Electrostatic Wrist Strap on page 1-5

•Shutting Down and Restarting an Array on page 1-6

Front and Back Panels

The front and back panels of a PS Series storage array are shown below.

Figure 1-1: PS Series 50E to 400E Storage Array Front Panel

Figure 1-2: PS Series 50E to 400E Storage Array Back Panel

PS Series 50E to 400E Hardware Maintenance Basic Array Information

1–2

Note: The figures in this manual show Type II control modules (blue face plate),

which are functionally equivalent to Type I control modules (dark gray

face plate). See Appendix B, Control Module Models, for information.

Figure 1-3: Type II Control Module Details

Interpreting LEDs

The following figures and tables describe PS Series 50E to 400E storage array

LEDs, which can alert you to errors and conditions that require your attention.

Report serious errors to your PS Series array service provider.

Figure 1-4: Front Panel LEDs

Table 1-1: Front Panel LED Descriptions

Disk LEDs Color Description

Left Off No power or error condition.

Green Power.

Right Off No power or normal condition.

Red Error condition.

Flashing green Disk activity.

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