Disk Drive Troubleshooting - Digital Equipment DIGITAL Server 7100 1200 Service Maintenance Manual

Troubleshooting

Disk Drive Troubleshooting

Problem
Server does not
recognize an internal
SCSI device.
4-24
Possible Cause
SCSI device jumpers
incorrectly set.
SCSI ID conflicts.
Terminating resistors not
removed from the SCSI
device.
SCSI adapter has failed.
Loose SCSI cable.
SCSI cables incorrectly
installed between SCSI host
adapter, wide Ultra SCSI bus
repeater module, SCSI device
or backplane.
SCSI device has failed.
Action
Refer to the supplied kit installation
instructions.
Refer to the supplied kit installation
instructions and to the storage
backplane jumper configuration.
Remove terminating resistors. Refer to
the supplied kit installation instructions.
Replace the SCSI adapter.
Secure all cable connections.
Check all cabling.
Replace SCSI device.
continued