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SubjectRe: SCSI disk error in 2.0.30, data loss
On Tue, 2 Mar 1999, Bob McElrath wrote:

> Looks like SCSI controller configuration problems. Disable
> Disconnect/Reconnect, and Tagged Queuing.

No go. I tried this and then gave the drive a low-level format (from the
controller's config menu at bootup), fdisked, did "mke2fs -cv /dev/sda1" and
then "e2fsck -fc /dev/sda1"; in the middle of checking for bad blocks came
this:

Mar 3 20:57:57 erie kernel: SCSI bus is being reset for host 0 channel 0.
Mar 3 20:57:57 erie kernel: scsi0: Sending Bus Device Reset CCB #45631 to
Target 0
Mar 3 20:57:58 erie kernel: scsi0: Bus Device Reset CCB #45631 to Target 0
Completed
Mar 3 20:57:59 erie kernel: SCSI disk error : host 0 channel 0 id 0 lun 0
return code = 28000002
Mar 3 20:57:59 erie kernel: extra data not valid Current error sd08:01:
sense key Not Ready
Mar 3 20:57:59 erie kernel: Additional sense indicates Logical unit is in
process of becoming ready
Mar 3 20:57:59 erie kernel: scsidisk I/O error: dev 08:01, sector 34936
Mar 3 20:57:59 erie kernel: SCSI disk error : host 0 channel 0 id 0 lun 0
return code = 28000002
Mar 3 20:57:59 erie kernel: extra data not valid Current error sd08:01:
sense key Not Ready
Mar 3 20:57:57 erie kernel: SCSI bus is being reset for host 0 channel 0.
Mar 3 20:57:57 erie kernel: scsi0: Sending Bus Device Reset CCB #45631 to
Target 0
Mar 3 20:57:58 erie kernel: scsi0: Bus Device Reset CCB #45631 to Target 0
Completed
Mar 3 20:57:59 erie kernel: SCSI disk error : host 0 channel 0 id 0 lun 0
return code = 28000002
Mar 3 20:57:59 erie kernel: extra data not valid Current error sd08:01:
sense key Not Ready
Mar 3 20:57:59 erie kernel: Additional sense indicates Logical unit is in
process of becoming ready
Mar 3 20:57:59 erie kernel: scsidisk I/O error: dev 08:01, sector 34936
Mar 3 20:57:59 erie kernel: SCSI disk error : host 0 channel 0 id 0 lun 0
return code = 28000002
Mar 3 20:57:59 erie kernel: extra data not valid Current error sd08:01:
sense key Not Ready

etc. ...

It's disturbing because the machine's been fine with this
configuration/hardware for at least a year. I don't think it's a bum drive,
since I replaced it when the problem first surfaced, about a week ago. I did
upgrade the machine to Debian 2.0 a couple months ago.


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