SCSI: First party detected bus hang

[C_V]

Hey guys what does this error mean:

SCSI: First party detected bus hang -- lbolt: 53346442, bus: 1

cat -n /var/adm/syslog/syslog.log | grep SCSI

7020 Jan 22 00:10:15 vfauh131 vmunix: SCSI: Resetting SCSI -- lbolt: 53348942, bus: 1
7021 Jan 22 00:10:15 vfauh131 vmunix: SCSI: Reset detected -- lbolt: 53348942, bus: 1
7022 Jan 22 00:10:26 vfauh131 vmunix: SCSI: First party detected bus hang -- lbolt: 53350042, bus: 1
7042 Jan 22 00:10:27 vfauh131 vmunix: SCSI: Resetting SCSI -- lbolt: 53350142, bus: 1
7043 Jan 22 00:10:27 vfauh131 vmunix: SCSI: Reset detected -- lbolt: 53350142, bus: 1
7044 Jan 22 00:10:38 vfauh131 vmunix: SCSI: First party detected bus hang -- lbolt: 53351242, bus: 1
7064 Jan 22 00:10:39 vfauh131 vmunix: SCSI: Resetting SCSI -- lbolt: 53351342, bus: 1
7065 Jan 22 00:10:39 vfauh131 vmunix: SCSI: Reset detected -- lbolt: 53351342, bus: 1
7066 Jan 22 00:10:50 vfauh131 vmunix: SCSI: First party detected bus hang -- lbolt: 53352442, bus: 1
7086 Jan 22 00:10:51 vfauh131 vmunix: SCSI: Resetting SCSI -- lbolt: 53352542, bus: 1
7087 Jan 22 00:10:51 vfauh131 vmunix: SCSI: Reset detected -- lbolt: 53352542, bus: 1


- Is this a critical issue?

[TTr]

It looks like this may be related to the veritas filesystem error in your other posting. You need to look through the errors in the sysog and look for lines with "dev:0x...". This would be the disk device that the errors are for.

[Steven E. Protter · Accepted solution]

Shalom,

A disk or controller has gone down.

When disks go bad.
http://docs.hp.com/en/5992-3385/5992-3385.pdf

The lbolt alone can be triggered by swapping out a hot swap disk. This would be cleared by a reboot. I do in this case suspect a suspect a disk or controller has gone down.

SEP

[Jaime Bolanos Rojas.]

I agree with the above, the problem is usually HW related, my recommendation is to open a support call so that they can start replacing usually the disk or the controller that failed.

Sometimes, ( the least ) might be that you are missing the latest SCSI IO cumulative patch for your OS version.

Good luck!

Regards,

Jaime.

[C_V]

Thanks for the info guys