please explain CHK COND messages

[Harry Annett]

We occationally recieve these errors and I am being asked to explain why we are recieving them.... though we are having nagging issues with backups, I do not think that we are seeing these errors often enough to pinpoint our issues. Can someone explain to me why we get these specific errors:

1698. 10/23/2007 11:25:48 6d11h36m48.74s CHK COND with Sense Key=0x3, ASC=0x14, ASCQ=0x0 from SCSI LUN 3/3/4/0

1699. 10/23/2007 11:42:24 6d11h53m24.76s CHK COND with Sense Key=0x3, ASC=0x14, ASCQ=0x0 from SCSI LUN 3/3/4/0

1700. 11/03/2007 22:30:28 17d23h41m26.76s CHK COND with Sense Key=0x3, ASC=0xC, ASCQ=0x0 from SCSI LUN 3/0/1/0

[Torsten.]

In general: the HBA (initiator) will send a command to the device (target) and read the response. If there was a problem, the response is a check condition.

Please give more info about the OS and the device.

[Uwe Zessin]

Sense Key 0x3 is 'Medium Error'.

ASC 0xC is 'write error' and
0x14 is 'RECORDED ENTITY NOT FOUND' (whatever you SCSI device means by that)

[Phillip Thayer]

This looks to me like a medium error of some sort. You should probably call HP support about this and get an engineer out to check your HBA/SAN.

Look at http://docs.hp.com/en/J6373-90030/apas01.html#ciadehfd for a list of the sense key definitions.

Phil