Digital Equipment DIGITAL Server 7100 1200 Service Maintenance Manual page 71

Troubleshooting
Problem
Server does not boot
from an internal SCSI
hard disk drive.
SCSI hard disk drive
cannot read or write
information.
SBB failure.
4-26
Possible Cause
Boot device not attached to the
SCSI adapter at the lowest
ROM address.
PCI/EISA scanning order
incorrect.
Bootable CD-ROM drive not
connected to the primary SCSI
adapter.
SCSI boot hard disk drive not
formatted.
SCSI device drivers not
installed or incorrectly installed
on SCSI boot hard disk drive.
Operating system software is
not installed on the SCSI boot
hard disk drive.
Requested partition does not
exist.
SCSI boot hard disk drive at
wrong SCSI address.
SCSI device has failed.
Incorrect disk drive jumper
settings.
Loose or incorrectly installed
cables.
SCSI hard disk drive is not
correctly formatted or
partitioned.
Check SBB status LEDs for a
drive failure indication.
Action
Run the SCU to define the server
boot device.
Refer to the bus scanning
examples in the System Reference
manual.
Connect the CD-ROM to the SCSI
adapter.
Format the SCSI hard disk drive.
CAUTION: Formatting the SCSI
hard disk drive will destroy all the
data on the drive.
Properly install all required SCSI
device drivers.
Install the appropriate operating
system.
Partition the SCSI hard disk drive
and then reload the operating
software.
Set SCSI boot hard disk drive to
lowest "primary" SCSI address.
Replace SCSI device.
Refer to the supplied kit installation
instructions.
Make sure all cables are correctly
installed.
Format and partition as required
using the supplied operating
system.
Replace the SBB.