IBM 8500R - Netfinity - 8681, Hardware Maintenance Manual

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Press <<Ctrl-A for SCSIselect(TM) Utility>>
Immediately after you see that line of text, the
SCSI ports and devices will be posted to the
screen as they are identified.
e. Watch the video display to see if the boot
hardfile is listed.
22. If the boot device is listed, but the system will not
boot to the operating system, replace FRUs in the
following order:
a. Boot device
b. I/O function card
c. I/O Planar (if your operating system is NT or
SCO Unix)
23. If the boot device is not listed on the SCSI device
screen and the boot device is an internal SCSI drive,
move the boot drive to the other internal SCSI bay
and reboot. If the drive is now listed on the SCSI
screen, replace the SCSI backplane and go to 29.
24. Move the SCSI cable from the internal SCSI port to
the external SCSI port. Reboot the system. If the
drive is now listed on the SCSI screen, replace the
I/O function card and go 29.
25. If you still do not see the boot device listed on the
SCSI screen, suspect FRUs in the following order:
a. Boot hardfile
b. SCSI cable
c. I/O function card
d. SCSI backplane
26. If the boot device is displayed on the SCSI screen but
you are unable to boot to the operating system,
suspect the following:
a. Corrupt boot code
b. Boot hardfile
c. SCSI cable
d. I/O function card
e. SCSI backplane
27. If the operating system begins to load and the system
hangs, suspect FRUs in the order listed. The FRU
replaced which allows the system to boot to the
operating system identifies the failing FRU.
a. Memory Board
b. I/O Board
c. I/O function card
d. Processor controller board
e. Processor daughter card
f. Processor
g. Processor terminator card
h. DIMM
i. Midplane
j. Power control card
k. Power supply
28. Power off the server.
29. Restore the server to its original configuration.
30. Retest the system without external devices attached.
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