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SCSI Channel MAP 57
6-00020-02
SNC 5100
Examine SCSI Connectors
Caution
Before removing a SCSI cable, all I/O to the SNC 5100 must be
stopped and the SNC 5100 must be turned off.
Step 1. Inspect each connector to find out if pins were bent when the
connector was attache
d.
Step 2. Replace any cables that have bent pins.
Step 3. If you did not have to replace or re-secure a SCSI cable, go to
"SCSI Loop Back Test".
Step 4. If you replaced or re-secured a SCSI cable, turn on the SNC 5100.
Step 5. After it finishes booting, enter the
scsiShow command from the
service terminal.
For more information, see the
"scsiShow" command on page 160.
Step 6. Compare the list of attached devices with the physical devices.
If not all of the physical devices are shown, go to "SCSI Loop Back
Test".
If all of the physical devices are shown, go to "SCSI Health Check".
SCSI Health Check
Step 1. Perform a Health Check.
For more information, see “Perform Health Check” on page 46.
Step 2. Check the Event Log for SCSI errors.
For more information, see “Check the Host Event Log” on page 47.
Step 3. Perform a component check.
For more information, see“Quick Component Check” on page 46.
Step 4. If errors are still indicated, go to "SCSI Loop Back Test".
If no errors are reported, exit this MAP.