sata drive or controller failing
hi guys,
today morning i realized that one of the software raid mirrors on my
computer report U_ in /proc/mdstat, i.e. one member of the array failed.
indeed, i can see the following in the dmesg output:
ata6: translated ATA stat/err 0x51/40 to SCSI SK/ASC/ASCQ 0x3/11/04
ata6: status=0x51 { DriveReady SeekComplete Error }
ata6: error=0x40 { UncorrectableError }
ata6: translated ATA stat/err 0x51/40 to SCSI SK/ASC/ASCQ 0x3/11/04
ata6: status=0x51 { DriveReady SeekComplete Error }
ata6: error=0x40 { UncorrectableError }
ata6: translated ATA stat/err 0x51/40 to SCSI SK/ASC/ASCQ 0x3/11/04
ata6: status=0x51 { DriveReady SeekComplete Error }
ata6: error=0x40 { UncorrectableError }
ata6: translated ATA stat/err 0x51/40 to SCSI SK/ASC/ASCQ 0x3/11/04
ata6: status=0x51 { DriveReady SeekComplete Error }
ata6: error=0x40 { UncorrectableError }
ata6: translated ATA stat/err 0x51/40 to SCSI SK/ASC/ASCQ 0x3/11/04
ata6: status=0x51 { DriveReady SeekComplete Error }
ata6: error=0x40 { UncorrectableError }
sd 5:0:0:0: SCSI error: return code = 0x8000002
sdb: Current: sense key=0x3
ASC=0x11 ASCQ=0x4
end_request: I/O error, dev sdb, sector 17563959
raid1: Disk failure on sdb1, disabling device.
Operation continuing on 1 devices
raid1: sdb1: rescheduling sector 17563896
there are some puzzling things, though:
1) i have 2 mirrors on sda/sdb (md0 has /, md1 has /home mounted). only
sdb in md1 is reported to fail
2) smartctl doesn't report any errors. however, when issued on sda, sdc,
and sdd, dmesg contains the same error message, only with number after
ata changed, e.g.
ata5: translated ATA....
for ata[5-8].
does this mean that sdb is dying and somehow influences other drives?
everything seems to work normally. or is the integrated sata controller
failing?
this is amd64/unstable/2.6.15, running for long time without any
problems (however, i had to replace sda - maxtor 160gb - because it
failed some time ago. sdb is the same drive, maybe it's dead too?)
thank you in advance for any hints. regards,
--
Lubos _@_"
http://www.lubos.vrbka.net
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