From: Phil Turmel <philip@turmel.org>
To: P Agenbag <internet@mweb.co.za>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID5+spare volume gone - mdadm sees RAID1 only?
Date: Sun, 22 Sep 2013 17:45:54 -0400 [thread overview]
Message-ID: <523F6512.2050007@turmel.org> (raw)
In-Reply-To: <CAFjqtwhDa03Yi2kaWAVCVpYPxPmF3omwAw2KW4cmKfQerXFwug@mail.gmail.com>
On 09/22/2013 02:02 PM, P Agenbag wrote:
> Hi List
>
> I have a D-Link DNS345 NAS which I configured as RAID5 + spare with 4x
> 500GB Seagate SATA drives.
>
> I suspect a power surge caused the NAS to suddenly lose the volume.
>
> All 4 drives checked out OK when doing a SMART test on the NAS itself.
> I proceeded to build all 4 drives into a CentOS server, but was unable
> to mount the RAID5 - error is always "not enough drives".
>
> I followed some advise in archives, and did some mdadm -- examines,
> and echo them below - what I don't understand is why the --examine
> picks them up as RAID1.
>
> Is there anything I can do to re-build this array?
The "mdadm --examine" info you gave is clearly for the NAS boot
volume--it is only 1/2 GB--and would be expected to be raid1.
Please take a closer look at your partition tables....
Share them here if you can't get further, and include "mdadm --examine"
from all other partitions that have raid superblocks.
Phil
next prev parent reply other threads:[~2013-09-22 21:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-22 18:02 RAID5+spare volume gone - mdadm sees RAID1 only? P Agenbag
2013-09-22 21:45 ` Phil Turmel [this message]
2013-09-23 5:15 ` P Agenbag
2013-09-23 12:40 ` Phil Turmel
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