From: "J. Ali Harlow" <ali@juiblex.co.uk>
To: linux-raid@vger.kernel.org
Subject: Re: Can't work out how to recover after multiple failures
Date: Tue, 26 Jul 2005 09:51:47 +0100 [thread overview]
Message-ID: <1122367907.1184.239244752@webmail.messagingengine.com> (raw)
In-Reply-To: <1122222141.13200.239118760@webmail.messagingengine.com>
On Sun, 24 Jul 2005 17:22:21 +0100, "J. Ali Harlow" <ali@juiblex.co.uk>
said:
> Can anyone please help me get my raid 1 device back up and running? I
> had a chipset failure which took out one disk and then just after
> replacing the disk and resyncing, the original disk lost power due to a
> loose connection. mdadm seems to think that both devices are fine, but I
> can't seem to fine the magic vodoo to get the raid array working again.
> Sorry if this is a really stupid question. I did read the documentation
> for mdadm pretty carefully, but I'm obviously missing something. Many
> thanks,
Finally got this working. There seem to have been two issues. First,
mdadm didn't like running an array as a seperate step to assembling it.
(mdadm -R /dev/md0 was giving me "Invalid Argument"). Doing this in one
step however did work. Secondly, I suspect the two devices weren't
synced even though mdadm -E wasn't showing this which was casuing
attempts to assemble an array containing both devices to quietly fail.
The final sequence which worked was:
reboot
mdadm --assemble /dev/md0 --run /dev/hda2
mdadm /dev/md0 -a /dev/hde2
Easy when you know :-)
Ali.
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prev parent reply other threads:[~2005-07-26 8:51 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-24 16:22 Can't work out how to recover after multiple failures J. Ali Harlow
2005-07-26 8:51 ` J. Ali Harlow [this message]
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