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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