Sun Microsystems 280R manual FC-AL Controller Failure

2.Use the test command to get more information, type:

ok test /SUNW,qlc

3.Take one of the following actions depending on what the probe-scsicommand 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-scsitest 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.

Note –You can also use the probe-scsicommand to look for failures on the FC-AL loop. An Unable to initialize error message indicates a problem on the loop. Proceed by disconnecting all the loop devices and then probe the loop again. If the loop is present, then swap drives in and out first, then cables, and finally loop- device backplanes to isolate the problem.

FC-AL Controller Failure

Symptom

A disk drive fails to boot or is not responding to commands.

Action

To check whether the main logic board FC-AL controller is defective, first test the drive response to the probe-scsicommand and then run OpenBoot Diagnostics.

192 Sun Fire 280R Server Owner’s Guide • January 2001