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Chapter 6 Diagnostics, Monitoring, and Troubleshooting 193
1. At the ok prompt, type:
If a message is displayed for each installed disk, the system FC-AL controllers have
successfully probed the devices. This indicates that the main logic board is working
correctly.
2. Use the test command to get more information, type:
3. Take one of the following actions depending on what the probe-scsi command
reports:
a. If one drive does not respond to the FC-AL controller probe but the others do,
replace the unresponsive drive.
b. If only one internal disk drive is configured with the system and the
probe-scsi test fails to show the device in the message, replace the drive.
4. If the problem is still evident after replacing the drive, replace the main logic
board.
5. If replacing both the disk drive and the main logic board does not correct the
problem, replace the associated FC-AL data cable and FC-AL backplane.
DVD/CD-ROM or SCSI Drive Failure
Symptom
A DVD/CD-ROM drive or externally connected SCSI drive read error or parity error
is reported by the operating system or a software application.
Action
1. Run the test command, type:
2. Replace the drive indicated by the failure message.
ok probe-scsi
ok test /SUNW,qlc
ok test scsi