From mboxrd@z Thu Jan  1 00:00:00 1970
From: NeilBrown <neilb@suse.de>
Subject: Re: help please - recovering from failed RAID5 rebuild
Date: Sat, 9 Apr 2011 21:29:30 +1000
Message-ID: <20110409212930.6f4ffb28@notabene.brown>
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	<20110408220130.4830852d@notabene.brown>
	<BANLkTimSh8f8cVihRxbKgKZq4zFv6VUmVQ@mail.gmail.com>
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To: sanktnelson 1 <sanktnelson@googlemail.com>
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On Sat, 9 Apr 2011 11:27:20 +0200 sanktnelson 1 <sanktnelson@googlemail=
=2Ecom>
wrote:

> 2011/4/8 NeilBrown <neilb@suse.de>:
> =20
> >
> > Maybe the best thing to do at this point is post the output of
> > =A0mdadm -E /dev/sd[bcdef]1
> > and I'll see if I can make sense of it.
>=20
> Thanks for your advice! here is the output:

It looks like it is in reasonably good shape (relatively speaking...).

I would
  mdadm -S /dev/md0
  mdadm -Af /dev/md0 /dev/sd[bdef]1
  fsck -nf /dev/md0

and if it looks good
  mount /dev/md0
  copy off any data that you can that you cannot live without.

Then stop the array
  mdadm -S /dev/md0
and copy sdd to sdc with dd-rescue
When that completes, assemble the array with
  mdadm -A /dev/md0 /dev/sd[bcef]1
  fsck -nf /dev/md0

and then if it looks good
  mdadm --zero /dev/sdd1
  mdadm /dev/md0 --add /dev/sdd1
and with luck it will successfully rebuild sdd1 and you will have redun=
dancy
again.

NeilBrown

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