Date: Wed, 15 Oct 2003 14:50:14 +0200 From: Marko Leer <marko@half2.nl> To: freebsd-questions@freebsd.org Subject: hard error reading Message-ID: <16825180407.20031015145014@half2.nl>
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Hi all,
This morning I found this entry in the messages:
Oct 15 08:20:25 pippi /kernel: ad6: hard error reading fsbn 1783727 of 0-15 (ad6 bn 1783727; cn 1769 tn 9 sn 8) trying PIO
mode
Oct 15 08:20:27 pippi /kernel: ad6: DMA problem fallback to PIO mode
>From searching around a bit I noticed that this probably is the
beginning of the end of ad6 and chances are the disk will not come up
when the server is rebooted; I haven't tried that yet :-)
Now ad6 is part of a RAID 1-setup. Does this message mean:
- this blocks are not used any more; while mirorring the lost data is
restored on ad6 on some other part
- you've lost the data and there's no way you ever gonna find out what
it was
What I'm also wondering about is if any dumps made now will be accurate.
Here's some recent atacontrol-output:
root (pippi) /var/cron/tabs>atacontrol list
ATA channel 0:
Master: no device present
Slave: acd0 <Slimtype COMBO LSC-24081M/3M35> ATA/ATAPI rev 5
ATA channel 1:
Master: no device present
Slave: no device present
ATA channel 2:
Master: ad4 <IC35L090AVV207-0/V23OA63A> ATA/ATAPI rev 6
Slave: no device present
ATA channel 3:
Master: ad6 <IC35L090AVV207-0/V23OA63A> ATA/ATAPI rev 6
Slave: no device present
root (pippi) /var/cron/tabs>atacontrol status ar0
ar0: ATA RAID1 subdisks: ad4 ad6 status: READY
Any answers and help on how to proceed from here much appreciated!
Cheers,
Marko
http://half2.nl
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