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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=523F6512.2050007@turmel.org \
--to=philip@turmel.org \
--cc=internet@mweb.co.za \
--cc=linux-raid@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.