problems with RAID0 and Intel/SE7501WV2/Promise
Danny Braniss
danny at cs.huji.ac.il
Fri Jul 2 23:45:44 PDT 2004
> On Fri, 2 Jul 2004, Danny Braniss wrote:
>
> > Hi,
> > the raid info keeps disappearing!, and im not convinced it's
> > hardware. I've tried it on 2 different - but similar - boxes, after some
> > time, kernel reports something like:
> > Jul 2 10:18:35 cs7.cs.huji.ac.il /kernel: ad6: hard error writing fsbn 0 (ad6
> > bn 0; cn 0 tn 0 sn 0) trying PIO mode
>
> How did you construct the array volume? This looks like one of the
> offsets in the disklabel is wrong.
>
I used sysinstall, and disklabel -e to change the partition letters.
The problem appears after several hours of disk usage, and the only
partition in use is h.
> > Jul 2 10:18:35 cs7.cs.huji.ac.il /kernel: ad4: hard error writing fsbn 0 (ad4
> > bn 0; cn 0 tn 0 sn 0) trying PIO mode
> > Jul 2 10:18:35 cs7.cs.huji.ac.il /kernel: ad6: hard error writing fsbn 0 (ad6
> > bn 0; cn 0 tn 0 sn 0) status=51 error=10
> > Jul 2 10:18:35 cs7.cs.huji.ac.il /kernel: ar0: ERROR - array broken
> > Jul 2 10:18:35 cs7.cs.huji.ac.il /kernel: ad4: hard error writing fsbn 0 (ad4
> > bn 0; cn 0 tn 0 sn 0) status=51 error=10
> > Jul 2 10:18:35 cs7.cs.huji.ac.il /kernel: ar0: ERROR - array broken
> > Jul 2 10:18:35 cs7.cs.huji.ac.il /kernel: ar0: ERROR - array broken
> >
> > from dmesg:
> > ...
> > FreeBSD 4.10-STABLE #7: Fri Jul 2 09:57:10 IDT 2004
> > ...
> > ar0: 381564MB <ATA RAID0 array> [48642/255/63] status: READY subdisks:
> > 0 READY ad4: 190782MB <ST3200822A> [387621/16/63] at ata2-master UDMA100
> > 1 READY ad6: 190782MB <ST3200822A> [387621/16/63] at ata3-master
> > UDMA100
> >
> > i've partitioned the disk so:
> > # size offset fstype [fsize bsize bps/cpg]
> > a: 1024000 0 4.2BSD 2048 16384 90 # (Cyl. 0 - 63*)
> > b: 8388608 1024000 swap # (Cyl. 63*- 585*)
> > c: 781433667 0 unused 0 0 # (Cyl. 0 - 48641*)
> > d: 1024000 9412608 4.2BSD 0 0 0 # (Cyl. 585*- 649*)
> > h: 770997059 10436608 4.2BSD 0 0 0 # (Cyl. 649*- 48641*)
> >
> > the machine boots diskless, so just to check the disk i did a newfs -U to
> > /dev/ar0s1a,
> > then restored a root image unto it, no problems.
> >
> > the h partition has a big postgres data base, starting postgres i get the
> > above error, notice that
> > the error is a bit suspicious, fsbn 0 ( ... bn 0; cn 0; tn 0; sn 0)
> >
> > using the Fastrack/Promise Bios i reconfigure the Raid, and if tried the above
> > again with
> > the same results.
> >
> > btw, on a different host, same motherboard, same type of disks, with a older
> > kernel,
> > it panics, but the disk error is the same, and the array info is lost.
> >
> >
> > Any more info/help needed to track this down?
> >
> > thanks,
> > danny
> >
> >
> >
> >
> >
> > _______________________________________________
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> >
>
> --
> Doug White | FreeBSD: The Power to Serve
> dwhite at gumbysoft.com | www.FreeBSD.org
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