Mailinglist Archive: opensuse (1696 mails)
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Re: [opensuse] MD5 Raid array does not start
- From: Anders Johansson <ajohansson@xxxxxxx>
- Date: Sun, 19 Jul 2009 19:22:04 +0200
- Message-id: <200907191922.04285.ajohansson@xxxxxxx>
On Sunday 19 July 2009 18:48:08 Leen de Braal wrote:
I don't think there is a way. With raid5, if two drives break in an array,
your data is lost. I suspect you need to restore from backup (I hope you have
one)
Anders
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Yes. I have been checking some more and I think Murphy's Law is at hand
here. Some more info on what happened.
This morning I changed one of the disks, because it had failed with more
than 180 unrecoverable sectors.
After rebooting, the array started rebuilding. Somewhere in
/var/log/messages (had a tail -f on a terminal) I saw that the rebuild was
done this afternoon. When checking /proc/mdstat I saw to my horror that
sda had fallen of the array, sdc was active, and sde (the new disk) was
also out of the array. So apparently while rebuilding, a second disk in
the array broke.
In more or less panic I rebooted, thinking the array might be started with
sdc and the new sde as second, and sda as failed disk. But now it seems,
that sde has not been able to finish the rebuild, so there I have a lost
raid5 (probably).
Anyone know of a way to get the data back?
I don't think there is a way. With raid5, if two drives break in an array,
your data is lost. I suspect you need to restore from backup (I hope you have
one)
Anders
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