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SCSI Reset Errors

TAMILVANAN
Advisor

SCSI Reset Errors

Hi Folks,
Suddenly one of my N-CLass Server which is connected to a HASS box and a SC10 array got hanged.The solution for my problem was then was recycle the power of the system. After I restarted I saw the below SCSI Errors in OLDsyslog.log file of my system.
Can u just help me to interpret this message.
Thanx & Regards,
V.Tamilvanan

Jun 22 14:58:04 gemini vmunix: SCSI: Resetting SCSI -- lbolt: 129243527, bus:
8
Jun 22 14:58:04 gemini vmunix: SCSI: Reset detected -- lbolt: 129243527, bus:
8
Jun 22 14:58:04 gemini vmunix: LVM: vg[10]: pvnum=0 (dev_t=0x1f08b000) is POWE
RFAILED
Jun 22 14:58:43 gemini vmunix: SCSI: Resetting SCSI -- lbolt: 129247427, bus:
8
Jun 22 14:58:43 gemini vmunix: SCSI: Reset detected -- lbolt: 129247427, bus:
8

 

 

P.S. This thread ahs been moved from General to Disk Array.- Hp Forum moderator

3 REPLIES
Michael Tully
Honored Contributor

Re: SCSI Reset Errors

Hi,

In most cases you will find that this particular error relates to actual timeouts between your server and the disk array that is servicing. To fix this problem have a look at increasing the SCSI timeout for that LUN or even all of your LUN's in your disk array. The use of the 'pvchange -t' will look after this. There is a man page for this as well.
As an example I would look at increasing this value to 180.
pvchange -t 180 /dev/dsk/c2t0d2

HTH
~Michael~
Anyone for a Mutiny ?
TAMILVANAN
Advisor

Re: SCSI Reset Errors

Hi Michael,
Thanx for your help. I identified the disk and ran dd to find for errors. It got terminated with I/O error. Now I am planning to replace the disk.
Thanx & Regards,
V.Tamilvanan.
Vincent Farrugia
Honored Contributor

Re: SCSI Reset Errors

Hello,

IO error does not necessarily mean a faulty harddisk. It could be a faulty SCSI cable or terminator. It could be the SCSI card.

HTH,
Vince
Tape Drives RULE!!!