System information

Power-Up Diagnostics and Display
2-13
Table 2-3 Mass Storage Problems (continued)
Symptom Problem Corrective Action
Read/write errors
in the console
event log; storage
adapter port fails.
Terminator
missing or
wrong
terminator
used.
Check the following jumpers and
terminator to ensure that proper
termination is provided for all internal
SCSI devices.
• The SCSI terminator jumper (J51)
on the system motherboard should
be set to “on.” Refer to Appendix A.
• The J5 jumper on the hard disk drive
backplane should be set as shown in
Appendix A.
• The cable terminator at the end of
the SCSI removable media cable
should be properly seated.
For controllers other than the onboard
controller, the pk*0_soft_term
environment variable is used to
enable/disable SCSI terminators. Refer
to Table 6-1.
Devices produce
errors or device
IDs are dropped.
Extra
terminator.
Check that bus is terminated only at
beginning and end. Remove unnecessary
terminators.
Removable media devices should disable
termination (check device jumpers or
SIPs).
For controllers other than the onboard
controller, the pk*0_soft_term
environment variable is used to
enable/disable SCSI terminators. Refer
to Table 6-1.
Problems persist
after eliminating
the problem
sources.
SCSI storage
controller
failure.
Replace failing EISA or PCI storage
adapter module (or motherboard for the
native SCSI controller).