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3. If original ISPR code is still present after disconnecting all SCSI cables and
SCSI error codes
Error code
All SCSI Errors One or more of the
following might be causing the problem:
v A failing SCSI device
(adapter, drive, controller)
v An improper SCSI configuration or SCSI
termination jumper setting
v Duplicate SCSI IDs in the same SCSI
chain
v A missing or improperly installed SCSI
terminator
v A defective SCSI terminator
v An improperly installed cable
v A defective cable
Temperature error messages
Note: See "System replaceable units" on page 122 to determine which components should be replaced by a field
service technician.
Message
DASD Over Temperature
(level-critical; direct access storage device
bay x was over temperature)
DASD Over recommended Temperature
(sensor x)
(level-warning; DASD bay x had over
temperature condition)
DASD under recommended temperature
(sensor x) (level-warning; direct access
storage device bay x had under
temperature condition)
DASD Over Temperature
(level-critical; sensor for DASD1 reported
temperature over recommended range)
Power supply x Temperature Fault
(level-critical; power supply x had over
temperature condition)
c. Disconnect one drive at a time attached to channel identified in step 2a on
page 114 and reboot each time to determine which drive is causing the
problem.
d. Replace SCSI cable attached to channel identified in step 2a on page 114.
e. Replace backplane attached to channel identified in step 2a on page 114.
rebooting, perform the following actions until the error is no longer present:
v Reseat the controller
v Replace the controller
FRU/action
1. External SCSI devices must be turned on before you turn on
the server.
2. Make sure that the cables for all external SCSI devices are
connected correctly.
3. If you have attached an external SCSI device to the server, make
sure the external SCSI termination is set to automatic.
4. Make sure that the last device in each SCSI chain is terminated
correctly.
5. Make sure that the SCSI devices are configured correctly.
FRU/action
v Ensure that the system is being properly cooled; see "System
reliability considerations" on page 15.
v Ensure that the system is being properly cooled; see "System
reliability considerations" on page 15.
v Ambient temperature must be within normal operating
specifications; see "Features and specifications" on page 3.
v Ensure system is being properly cooled; see "System reliability
considerations" on page 15.
1. Ensure system is being properly cooled; see "System reliability
considerations" on page 15.
2. Replace power supply x
Chapter 6. Symptom-to-FRU index
115
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Table of Contents
Troubleshooting
