[CentOS] Recover software raid 10 on CentOS 6.3

Jacob Hydeman jhydeman at gmail.com
Tue Sep 4 19:38:29 EDT 2012


It's been fixed. The drives were ok but nothing would reassemble. The
drives were marked as faulty so I followed the suggestions here:
http://anders.com/cms/411/Linux/Software.RAID/inactive/mdadm

Thanks!

On Tue, Sep 4, 2012 at 12:25 PM, Jacob Hydeman <jhydeman at gmail.com> wrote:

> The setup is 4 1TB drives running RAID10. I was using the Gnome Disk
> Utility to verify the integrity of the array (which is a 500MB mirrored md0
> and the rest a R10 md1).
>
> I believe one of the drives is bad but prior to the system going offline
> it showed that 2 drives were detached from the array but healthy. A reboot
> results in a panic complaining that not enough mirrors are available.
>
> Is there a method to mount this array from a live CD so I can export the
> VM images. I have backups of the important ones but I'd lose 18 hours of
> data and a new PBX VM that was just finished but not backed up yet.
>
> I've been reading and testing various suggestions from the web but until I
> get this unit back up all phones and E-Mail are down, which leads to a
> slight panic, which makes it difficult to read and understand :)
>
> The backup server is at another location so I'm trying to recover first.
>
> Any direction would be appreciated.
>
> Thanks,
>
> Jacob
>


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