Dell PowerVault 201S Bedienungsanleitung

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

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





Throughout this guide, blocks of text may be accompanied by an icon and printed in

bold type or in italic type. These blocks are notes, cautions, and warnings, and they

are used as follows:

NOTE: A NOTE indicates important information that helps you make better use of your

computer system.



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!" !"



____________________

Information in this document is subject to change without notice.

Reproduction in any manner whatsoever without the written permission of Dell Computer

Corporation is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, PowerVault, PowerEdge, and Dell OpenManage

are trademarks of Dell Computer Corporation.

Other trademarks and trade names may be used in this document to refer to either the entities

claiming the marks and names or their products. Dell Computer Corporation disclaims any

proprietary interest in trademarks and trade names other than its own.

April 1999 P/N 6437P Rev. A01

Dell PowerVault 20xS Storage Systems Enclosure Services Expander Module Installation 1-1







This document provides instructions for configuring, installing, and servicing the

enclosure services expander module on a Dell PowerVault 20xS storage system.

The PowerVault 20xS storage system upgrade kit for cluster operation contains two

enclosure services expander modules. Other kits may contain one or two enclosure

services expander modules.

The enclosure services expander module (with a small computer system interface

[SCSI] bus expander chip) replaces the enclosure services module (without a SCSI

bus expander chip). The enclosure services expander module is labeled “ES Expander

Module;” the label is located adjacent to the SCSI connector.



The enclosure services expander module for the PowerVault 20xS storage system

provides the following features:

Uses the technology provided by the Ultra2 multimode SCSI bus expander chip

Provides SCSI cable support for longer cables (up to 20 meters)

Supports cluster operation

Supports the PowerVault 20xS storage system feature set

1-2 Dell PowerVault 20xS Storage Systems Enclosure Services Expander Module Installation



In addition to this document, you may need to refer to one or more of the following

documents to perform the installation, configuration, and servicing tasks:

Dell PowerVault 20xS Storage System Installation and Service Guide

Dell PowerEdge™cluster installation and troubleshooting documentation

User's Guide or Installation and Troubleshooting Guide for the host computer

Dell OpenManage™Server Assistant documentation, which provides

instructions for using the Dell Server Assistant CD

Dell PowerEdge™Expandable RAID Controller (PERC) 2/SC documentation,

which includes information on the SCSI host adapter card

HP OpenView Network Node Manager Special Edition x.x With Dell

OpenManage HIP x.x User’s Guide, which includes information on operating the

Dell OpenManage Hardware Instrumentation Package (HIP) server management

application

Service tag utility diskette instructions





The following configuration information applies only for cluster operation. No changes

are required for noncluster operation, which is the default configuration. You can

change the configuration by using the procedure described in “Configuring the

Enclosure Services Expander Module for Cluster Operation”found later in this

document.



Before you perform any of the procedures in this section, read the following warning

for your personal safety and to prevent damage to the storage system from

electrostatic discharge (ESD).

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Dell PowerVault 20xS Storage Systems Enclosure Services Expander Module Installation 1-3

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(-'.( ,( !/")+(,()!"()&)(.

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1. Turn off the storage system.

2. Disconnect the storage system from its power source(s).

3. Disconnect any communications cables.

4. Wear a wrist grounding strap, and clip it to an unpainted metal surface,

such as a part of the back panel, on the chassis. If a wrist grounding strap is

not available, touch the fan guard or some other unpainted metal surface

on the back of the chassis to discharge any static charge from your body.

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

NOTES: Two enclosure services expander modules are required for cluster operation.

When you configure the enclosure services expander modules using the forced

joined mode for cluster operation, the storage system cannot operate in a

split-backplane (2 x 4) configuration when two cables are attached.

To configure the enclosure services expander modules for cluster operation, perform

the following steps:

1. Locate the two-pin jumper labeled “FORCED JOINED JP8”on the enclosure

services expander module (see Figure 1-1).

The enclosure services expander module is shipped with a jumper plug that is

connected to only one pin of the jumper.

2. Move the jumper plug to connect the two pins of the FORCED JOINED JP8

jumper.

3. Repeat steps 1 and 2 for the second enclosure services expander module.

4. Install the two enclosure services expander modules into the PowerVault 20xS

storage system.

See “Installing the Enclosure Services Expander Module”found later in this

document.

1-4 Dell PowerVault 20xS Storage Systems Enclosure Services Expander Module Installation



If you want to configure the enclosure services expander modules from a cluster

operation to a noncluster operation, perform the following procedure on each module:

1. Remove the enclosure services expander module.

See “Replacing the Enclosure Services Expander Module”found later in this

document where removing the module is described.

2. Locate the two-pin jumper labeled “FORCED JOINED JP8”on the enclosure

services expander module (see Figure 1-1).

3. Move the jumper plug to connect only one pin of the FORCED JOINED JP8

jumper.

4. Install the two enclosure services expander modules into the PowerVault 20xS

storage system.

See “Installing the Enclosure Services Expander Module”found later in this

document.

NOTE: HP OpenView Network Node Manager Special Edition (NNM SE) 1.4 With

Dell OpenManage HIP 3.4 contains the backplane configuration feature that is used

to configure the enclosure services expander module for cluster operation through

software. However, this feature does not function properly. This problem will be

addressed in a future release of HP OpenView NNM SE x.x With Dell OpenManage

HIP x.x.

cluster operation

(forced joined mode)

noncluster operation

(default configuration)

two-pin jumper

(FORCED JOINED JP8)

Dell PowerVault 20xS Storage Systems Enclosure Services Expander Module Installation 1-5





This section provides the procedure for installing the enclosure services expander

module on the Dell PowerVault 20xS storage system.

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To install the enclosure services expander module, perform the following steps.

NOTE: To perform the following installation and subsequent tasks, you view the

PowerVault 20xS storage system from its back panel.

1. Turn off the storage system.

2. Disconnect the power cable(s) from the electrical outlet and the power supply.

3. Using a Phillips-head screwdriver, loosen the captive screw at the top of the

existing module on the left-back side of the storage system (see Figure 1-2).

4. Grasp the handle of the existing module and pull it from the module bay.



enclosure services

(expander) module

captive screw

handle

1-6 Dell PowerVault 20xS Storage Systems Enclosure Services Expander Module Installation

5. Carefully insert the enclosure services expander module into the module bay.

6. Push the module to the back of the bay until it is seated in the connector.

The module is seated when its front plate is even with the neighboring

components.

7. Using a Phillips-head screwdriver, tighten the captive screw at the top of the

enclosure services expander module to secure the module to the chassis.

8. Repeat steps 3 through 7 to install the second enclosure services expander

module on the right-back side of the storage system.

9. Proceed to the next section, “Connecting the Storage System to the Host

Computer.”

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

See the Dell PowerEdge cluster installation and troubleshooting documentation for

detailed information on cabling the PowerVault 20xS storage system for cluster

operation. See “Configuring the Enclosure Services Expander Module for Cluster

Operation”found earlier in this document for configuration information.

NOTE: When you configure the enclosure services expander modules using the

forced joined mode for cluster operation, the storage system cannot operate

in a split-backplane (2 x 4) configuration when two cables are attached.

To connect the PowerVault 20xS storage system to the host computer, perform the

following steps:

1. Turn off the host computer and all peripheral devices connected to it.

2. Connect the SCSI cable(s) to the SCSI connectors on the storage system's back

panel (see Figure 1-3) and to the SCSI host adapter(s) in the host computer.

If you are attaching one cable to the PowerVault 20xS storage system, connect

the Dell external SCSI cable between SCSI connector A on the storage system's

back panel (see Figure 1-3) and the SCSI host adapter card in the host computer.

If you are attaching a second cable to the PowerVault 20xS storage system,

connect the Dell external SCSI cable between SCSI connector B on the storage

system's back panel (see Figure 1-3) and the SCSI host adapter card in the host

computer.

NOTE: The connectors on the SCSI cable(s) are keyed for proper orientation.

Dell PowerVault 20xS Storage Systems Enclosure Services Expander Module Installation 1-7

!"#$

3. Connect the storage system power cable to the power supply and to an electrical

outlet.

To help safeguard your storage system from power problems, connect the AC

power cable to an uninterruptible power supply (UPS), line conditioner, or surge

protector. If your storage system includes an optional redundant power supply,

connect the two power supplies to different circuits, if possible.

If this is the first time you have installed the enclosure services expander

module, go to step 4.

4. Boot the system with the service tag utility diskette and load the

PowerVault 20xS storage system service tag data (see the instructions for the

service tag utility diskette).

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

You can use Dell OpenManage HIP x.x to manage the shared PowerVault 20xS

storage system in a cluster configuration. Dell recommends that each node use the

default attributes. If you change any node attributes on the shared PowerVault 20xS

storage system, you must stop and restart the Dell Baseboard agent service on the

second node of the cluster configuration. Refer to the Dell OpenManage HIP x.x

User’s Guide for more information.

SCSI connector A

(enclosure services

expander module)

SCSI connector B

(second enclosure

services expander

module)

1-8 Dell PowerVault 20xS Storage Systems Enclosure Services Expander Module Installation

 

This section provides service procedures for the PowerVault 20xS storage system.

 

Refer to the Dell PowerVault 20xS Storage System Installation and Service Guide for

troubleshooting information.

!

NOTE: In a cluster configuration, you must turn off any server nodes connected to the

PowerVault 20xS storage system while you replace an enclosure services expander

module.

When you need to replace the A enclosure services expander module in a redundant

storage system, replace it with the B enclosure services expander module. Then

replace the B enclosure services expander module with a new one.

In a redundant configuration, the A enclosure services expander module copies

system-specific information to the B enclosure services expander module. Both

modules retain the same information. By replacing the A module with the B module

and then installing the new module in the B enclosure services expander module bay,

what is now the A enclosure services expander module copies the system-specific

information to the new B enclosure services expander module.

If you need to replace only the B enclosure services expander module, replace it with

a new enclosure services expander module.

To replace the enclosure services expander module, perform the following steps.

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1. Turn off the storage system.

2. Disconnect the power cable(s) from the electrical outlet and the power supply.

3. Disconnect any SCSI cables between the module and the server.

4. Using a Phillips-head screwdriver, loosen the captive screw at the top of the

enclosure services expander module (see Figure 1-2).

5. Grasp the handle on the enclosure services expander module and pull it from the

module bay.

6. Carefully insert the replacement enclosure services expander module into the

module bay.

7. Push the module to the back of the bay until it is seated in the connector.

The module is seated when its front plate is even with the neighboring

components.

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