Resetting SCSI error

[Kenneth Yap]

Dear Experts,
I have one HP9000 L2000 server. In the syslog I had found
Nov 20 22:27:53 MSA vmunix: SCSI: Resetting SCSI -- lbolt: 7838680, bus: 4
Nov 20 22:27:53 MSA vmunix: SCSI: Reset detected -- lbolt: 7838680, bus: 4
Nov 20 22:27:58 MSA vmunix: SCSI: Unexpected Disconnect -- lbolt: 7839180, dev: cb040002, io_id: 4000169
Nov 20 22:27:58 MSA vmunix: SCSI: Unexpected Disconnect -- lbolt: 7839181, dev: cb040002, io_id: 4000169

Pls advice which scsi that cause the scsi reset problem.

Kenneth

[Stefan Farrelly]

SCSI resets are difficult in that the errors you see may not be the ones causing the error. Far better to look at the hardware diagnostic logs for a clearer picture of what caused it. Run /usr/sbin/xstm
then go to TOOLS -> RUN -> LOGTOOL
and look at the logfiles - at the exact time of the scsi reset above 22:27:53 you will see some hardware errors in the log with the hardware path shown - eg. 10/0/0/0.6 Look for which path has the most errors at this time so that you can ignore possible ghosts.

[Keith Bevan_1]

Kenneth,

Follow Stefan's advice to obtain more detailed info. , but you will probably find that these lbolt errors are associated with phisicals disks and their controllers. This is not an issue as long as its a one off error and you are not getting a number of these. If you agetting a few of these then log a Hardware support call beofre th preoverbail happens !

Keith