[linux-lvm] mapping blocks to PVs?
Andres Salomon
dilinger at mp3revolution.net
Tue Feb 26 01:09:01 UTC 2002
That did the trick, thank you :)
On Sun, Feb 24, 2002 at 09:59:21PM -0700, Andreas Dilger wrote:
>
> On Feb 24, 2002 17:58 -0500, Andres Salomon wrote:
> > Ok, assuming the block/sector stuff is correct:
> >
> > --- Physical extents ---
> > PE LV LE Disk sector
> > 00000 /dev/site/lvol1 00000 33144
> > 00001 /dev/site/lvol1 00001 65912
> >
> > badblocks(2) is not picking up those blocks as being bad; this means I
> > need to manually remove the first LE from this LV. I assume I can
> > do something similar to `pvmove -n /dev/site/lvol1:0 /dev/hdf1 /dev/hdb1`
> > (hdf1 is the one causing problems, but I can't simply remove the PV from the
> > VG w/out deleting lots of stuff). However, how do I lvreduce from the
> > beginning of the LV? Is that possible?
>
> Actually, judging by the error, I think that this error is in the layout
> of the journal itself instead of a disk error. If it was a disk error
> you would also be getting IDE errors, and badblocks would detect it.
> The "bad block at offset" message happens when it is doing a bmap on the
> journal, and hasn't even started the read.
>
> I would suggest just removing the journal (tune2fs -O^has_journal <LV>) and
> then re-creating it (tune2fs -j <LV>) and the problem should go away.
>
> Cheers, Andreas
>
> > On Sun, Feb 24, 2002 at 12:01:43AM -0700, Andreas Dilger wrote:
> > > On Feb 23, 2002 16:45 -0500, Andres Salomon wrote:
> > > > I've got a LV that keeps corrupting, made up of several IDE disks. I've
> > > > already discovered one of the drives to be flaking out, after various
> > > > read tests on the device gave BadCRC/IRQ timeout errors. Read tests on
> > > > the other drives succeeded; however, I'm still getting stuff like:
> > > >
> > > > journal_bmap: journal block not found at offset 7180 on lvm(58,0)
> > > >
> > > > and
> > > >
> > > > /dev/site/lvol1: recovering journal
> > > > JFS: bad block at offset 7182
> --
> Andreas Dilger
> http://sourceforge.net/projects/ext2resize/
> http://www-mddsp.enel.ucalgary.ca/People/adilger/
>
>
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