Date: Tue, 10 Feb 2004 22:39:55 -0800 From: Michael Shafae <cadaver@tucu.net> To: freebsd-questions@freebsd.org Subject: Promise Fastrak ATA RAID 1 rebuild failed Message-ID: <1AA5AD7F-5C5D-11D8-875A-000393758564@tucu.net>
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Hi, I have an intel motherboard, s845wd1, with an onboard Promise Fastrak ATA RAID. Its running 4.8p10 on two mirrored Seagate 80 GB disks. It lost the mirror reporting this: ad6: hard error reading fsbn 140018943 of 0-127 (ad6 bn 140018943; cn 138907 tn 10 sn 57) trying PIO mode ad6: DMA problem fallback to PIO mode ad6: DMA problem fallback to PIO mode ad6: DMA problem fallback to PIO mode ad6: DMA problem fallback to PIO mode ad6: hard error reading fsbn 140019007 of 0-127 (ad6 bn 140019007; cn 138907 tn 11 sn 58) status=59 error=00 ar0: WARNING - mirror lost So following the handbooks steps at <http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/raid.html>; I detached channel 3 (which has ad6), attached channel 3 and then `atacontrol rebuild ar0`. An hour later it died with this message at the prompt: # atacontrol rebuild ar0 atacontrol: ioctl(ATARAIDREBUILD): Input/output error On the console, I saw the following message: ad4: hard error reading fsbn 75859712 of 0-255 (ad4 bn 75859712; cn 75257 tn 10 sn 26) trying PIO mode ad4: DMA problem fallback to PIO mode ad4: DMA problem fallback to PIO mode ad4: DMA problem fallback to PIO mode ad4: DMA problem fallback to PIO mode ad4: DMA problem fallback to PIO mode ad4: read error detected (too) late Running `atacontrol status ar0` returned: ar0: ATA RAID1 subdisks: ad4 ad6 status: REBUILDING 48% completed I waited 10 minutes or so and ran the command again and got the same output. I rebooted the system and it came up ok but with these messages on the console: ata0-slave: ATAPI identify retries exceeded ar0: 76293MB <ATA RAID1 array> [9726/255/63] status: DEGRADED subdisks: 0 READY ad4: 76319MB <ST380021A> [155061/16/63] at ata2-master UDMA100 1 SPARE ad6: 76319MB <ST380021A> [155061/16/63] at ata3-master UDMA100 acd0: CDROM <CD-540E> at ata0-master PIO4 Mounting root from ufs:/dev/ar0s1a swapon: adding /dev/ar0s1b as swap device Automatic boot in progress... /dev/ar0s1a: FILESYSTEM CLEAN; SKIPPING CHECKS /dev/ar0s1a: clean, 78595 free (123 frags, 9809 blocks, 0.1% fragmentation) /dev/ar0s1f: FILESYSTEM CLEAN; SKIPPING CHECKS /dev/ar0s1f: clean, 515272 free (720 frags, 64319 blocks, 0.1% fragmentation) /dev/ar0s1g: FILESYSTEM CLEAN; SKIPPING CHECKS /dev/ar0s1g: clean, 31729380 free (80444 frags, 3956117 blocks, 0.2% fragmentation) /dev/ar0s1e: FILESYSTEM CLEAN; SKIPPING CHECKS /dev/ar0s1e: clean, 2975836 free (1076 frags, 371845 blocks, 0.0% fragmentation) If I understand this correctly, ar0 is now basically ad4. ad4 was the one that had the read error so ad6 couldn't be rebuilt. ad6 had a similar error and that's why the mirror was lost. I would like to rebuild the mirror, but I don't see how I can do this without re-installing the entire system. Has anyone had any similar experience or some insight on how I can get out of this bind? Thanks, Michael
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