Dell PowerVault 221S 서비스 매뉴얼 - 페이지 25

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Removing and Replacing Parts : Dell PowerVault 220S and 221S Systems Service Manual

3. Using a #2 Phillips-head screwdriver, loosen the captive screw at the top of the EMM or SCSI terminator card (see

4. Grasp the handle of the module and pull it from the module slot.

NOTE:

If you leave the storage system powered on when you remove the module from the system, the amber shelf-fault indicator lights until the module is replaced. See

for location of the shelf-fault indicator.

Figure 16. Removing and Installing an EMM or SCSI Terminator Card

Installing an EMM or SCSI Terminator Card

1. Carefully insert the EMM or SCSI terminator card into the empty module slot.

2. Push the module to the back of the slot until it is firmly seated in the backplane connector.

3. Using a #2 Phillips-head screwdriver, tighten the captive screw at the top of the module to secure the module to the chassis.

Connect the SCSI cable to the EMM.

5. If necessary, update the firmware for your EMM(s). See the Dell Support website at support.dell.com for the latest information on firmware updates.

NOTE:

If you have two EMMs installed, both must be running the same firmware level. Also, both EMMs must be the same speed. (A label on the EMM identifies

whether the module is a U160 or a U320.)

Removing and Installing the Split-Bus Module

Your system comes equipped with one "warm-pluggable" split-bus module which can be removed or replaced with the system powered on, provided that all I/O activity to the module

has ceased. However, since the split-bus module is an extension of the backplane, it must be present for proper system operation. If you turn on your system without a split-bus

module present or the module is removed while the system is powered on, the shelf-fault LED illuminates, and an audible alarm sounds continuously until a split-bus module is inserted.

For more information on split-bus module features and functions, see

This section describes how to remove and install split-bus modules in your storage system.

NOTICE:

Always wear a wrist grounding strap when handling equipment with static-sensitive components.

Removing a Split-Bus Module

1. Turn off the storage system.

This step is optional if I/O activity to the device has ceased.

file:///C|/Users/rishi_sood/Desktop/220s/en/sm/remove.htm[3/7/2013 12:09:15 PM]

1 captive screw

2 handle

3 secondary EMM or SCSI terminator card

"Split-Bus

Module."

Figure

16).

Figure 2