[CentOS] Raid 5 Q Solved

Phil Savoie psavoie1783 at rogers.com
Fri Nov 16 17:47:56 UTC 2012


On 11/16/2012 12:23 PM, Scott Silva wrote:
> on 11/16/2012 9:02 AM Phil Savoie spake the following:
>> I have a raid 5 built on an opensuse box that I just reinstalled Centos
>> 6.3 on.  Is it possible to rebuild the raid 5 array non-destructively?
>>
>> I have googled on this and have found using mdadm --scan --assemble
>> <list of fd devices>.  Will this do it?  I sure wouldn't want to lose my
>> data on the array if possible.
>>
>> thank you,
>>
>> Phil
>>
> It could be possible, but I think I would rather try to back it up with some
> sort of recovery system first... If the data is VERY critical, I would clone
> the drives with DD first just to make sure...
>
>
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Thank you for your reply.  What I did ewas the following:

mdadm --detail --scan > /etc/mdadm.conf

and thhis thankfully recreated /dev/md0 and was able to add the entry 
into the fstab mount the device and see all my data as I left it.

Big whew!!

Phil


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