Re: AIC + RAID1 error? (was: Re: aic7xxx errors)

["Justin T. Gibbs" <gibbs@scsiguy.com>]

>I run a RAID5-Array on three SCSI-Disks, all IBM, all LVD on the
>AIC7xxx-Controller on the Mobo (ASUS-P2B-DS)...and from time to time
>(usually about once per week) always the same partition of the RAID5
>gets a readerror and falls out of the array:

This is a very different issue.  The drive has even told you what is
wrong.

>-------------------------
>Sep  8 20:49:31 falcon kernel: SCSI disk error : host 0 channel 0 id 0
>lun 0 return code = 8000002
>Sep  8 20:49:31 falcon kernel: [valid=0] Info fld=0x0, Current sd08:04:
>sense key Hardware Error
>Sep  8 20:49:31 falcon kernel: Additional sense indicates Internal
				^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>target failure
 ^^^^^^^^^^^^^^

Something bad happened inside the disk.  Perhaps IBM can tell you what,
but it is not the aic7xxx driver, SCSI layer, or md's fault for this
disk going offline.

>Ok, i also thought: "Bad disk" and to verify this (i have still
>guarantee on the drive) i formated it, let the AIC-BIOS do a "remap of
>bad blocks" and ran "badblocks" about 5 times on it with the

Target failures are not "media errors".  If the drive was experiencing
a media problem, it would have said so.

--
Justin