Technical data

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SCSI Device Storage Module

SCSI Drive Removal and Replacement

The SCSI peripheral storage enclosure contains up to four half-

height storage devices. Two bays accommodate 3 1/2-inch devices

only. The other two bays accommodate either 3

1/2-inch devices,

when mounted in carrier adapters, or 5 1/4-inch devices.

The suggested procedure for removal and replacement of 3 1/2-

inch or 5 1/4-inch drive modules is described next.

Drive Removal

1. Switch the power supply of the system to

STANDBY and

disconnect the system from the AC or DC power source:

– If the power supply is an AC unit, unplug the power cord

from the AC outlet.

– If the power supply is a DC unit, turn off the -48Vdc power

source and unclamp the DC leads from the terminal block on

the power supply.

2. Remove the front bezel, if installed.

3. While pressing the latch at the side of the drive carrier, move the

module back and forth slightly to loosen the backplane

connection. Then carefully remove the module from the chassis

by pulling straight out.

Drive Replacement

1. Ensure that power to the system is set to

STANDBY and the power

cord is disconnected from the AC or DC power source.

2. Note the device address setting on the drive you are replacing,

and set the address switch on the new drive to the same device

number.

3. Slide the replacement drive module gently into the drive bay

until it contacts the backplane connector.

4. Use firm steady pressure to seat the drive connector in the

backplane.