On Thu Nov 12, 2009 at 10:03:51PM +0100, Janek Kozicki wrote:
> Hi,
>
> I have an old debian etch backup server. It has 5 drives in raid4.
> I want to add a sixth drive to jump to raid6. I don't want to upgrade
> debian etch, because the server is working real fine, and doing an
> upgrade would be too much problems.
>
> And so my plan is to get some liveCD with 2.6.31 (or maybe 2.6.32 ?).
> Connect the sixth drive, boot liveCD, perform the migration:
>
> mdadm --add /dev/md2 /dev/sdd3
> mdadm --grow /dev/md2 --level=raid6 --raid-disks=6
>
> Then reboot back into linux 2.6.24.
>
> Will this work?
>
> Will 2.6.24 understand such raid6 ?
>
I don't think so, no. It's not a standard RAID6 (as all the Q parity is
on a single disk) so I think you need the newer kernel to understand it.
Cheers,
Robin
--
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( ' } | Robin Hill <robin@xxxxxxxxxxxxxxx> |
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