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    SubjectRe: Dying disk and filesystem choice.
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    Jens Axboe <axboe@suse.de> writes:

    > On Thu, May 24 2001, Andi Kleen wrote:
    > > On Thu, May 24, 2001 at 12:58:14AM -0600, Andreas Dilger wrote:
    > > > Well reiserfs is probably a very bad choice at this point. It
    > > > does not have any bad blocks support (yet), so as soon as you have
    > > > a bad block you are stuck.
    > >
    > > reiserfs doesn't, but the HD usually has transparently in its firmware.
    > > So it hits a bad block; you see an IO error and the next time you hit
    > > the block the firmware has mapped in a fresh one from its internal
    > > reserves.
    >
    > In fact you will typically only see an I/O error if the drive _can't_
    > remap the sector anymore, because it has run out. No point in reporting
    > a condition that was recovered.
    >
    > I'd still say, that if you get bad block errors reported from your disk
    > it's long overdue for replacement.
    >
    > --
    > Jens Axboe

    Well, I have been fighting this for a while now, its just that today it
    finally hit /home in a big way :( basically its giving a DoS trying
    to compile stuff (which needs to write 25Mb+ library files)

    The drive gives the patented IBM "replace me" audio and the kernel graces
    me with these little chums:

    May 24 14:50:22 kloof kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
    May 24 14:50:22 kloof kernel: hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=78294495, sector=957496
    May 24 14:50:22 kloof kernel: end_request: I/O error, dev 03:08 (hda), sector 957496
    May 24 14:50:22 kloof kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
    May 24 14:50:23 kloof kernel: hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=78294495, sector=957504
    May 24 14:50:23 kloof kernel: end_request: I/O error, dev 03:08 (hda), sector 957504
    May 24 14:50:23 kloof kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
    May 24 14:50:23 kloof kernel: hda: dma_intr: error=0x40 { UncorrectableError }, LBAsect=78294495, sector=957512

    I already knew that the drive was rooted by using the IBM DFT tool.
    I am backing up as I type. Then, roll the dice with yet another
    IBM drive :-/


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