From mboxrd@z Thu Jan  1 00:00:00 1970
From: NeilBrown <neilb@suse.de>
Subject: Re: Re-assembling faulty array
Date: Tue, 15 May 2012 10:09:31 +1000
Message-ID: <20120515100931.15d12053@notabene.brown>
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To: "C.J. Adams-Collier KF7BMP" <cjac@colliertech.org>
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On Fri, 11 May 2012 12:41:16 -0700 "C.J. Adams-Collier KF7BMP"
<cjac@colliertech.org> wrote:

> Hey all,
>=20
> I've got an array that seems to have failed while I was re-synchronizing
> one of the disks.  sde fell out when I moved six disks from one chassis
> to another.  I re-added it and it was 98.8% done with 300 minutes left
> in the process when I went to sleep last night.  When I woke up, the
> array was in a FAILED state, sdg was marked failed and sde was marked
> spare.  I removed sdg from the array and re-booted and now the array
> won't start.
>=20
> Is there a way to re-add sdg back in to slot 5 rather than having it
> added as a spare?  AFAICT, no writes have been made to sdg or md0 since
> I removed it from the array, so it should be pretty close to its active
> state.  sde must be nearly ready to be added in as an active participant
> in the array, too.
>=20
> Is there anything I can do to re-build the array at this point?
>=20
>
Maybe.  However I cannot quite intuit the state of the arrays from your
description.
Could you report the output of "mdadm -E" on each member device please?

Thanks,
NeilBrown

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