Re: Replacing failed drive in software RAID
On Tue, Nov 05, 2013 at 02:15:07PM +0100, Veljko wrote:
> On Thu, Oct 31, 2013 at 02:41:01PM -0600, Bob Proulx wrote:
> > But if you are concerned about writes to sdb
> > then I would simply plan to boot from the debian-installer image in
> > rescue mode, assemble the raid, sync, then replace sdb, and repeat.
> > You can always install grub to the boot sectors after replacing the
> > suspect disks. Hopefully this makes sense.
>
> I replaced sdd drive and that went without problem, but after replacing sda,
> the drive with boot partition and MBR, system stalled at "veryfying dmi pool
> data". So I inserted debian CD and went with rescue mode. I haven't used it so
> I have some questions.
>
> I'm offered to reassemble RAID. Is it safe to use auto reconfigure option or
> should I assemble all three manually?
>
> If I should go with manually, what to do with md0? It's RAID1 for boot
> partition and now there is only one drive.
>
> Should I recreate md1 and md2 with three drives? Would that work?
>
> After this is done successfully, I assume I should go with:
> # vgscan
> # vgchange -a y volume_group_name
>
> and mount manually all partitions (there is root and swap, so I guess I only
> need to mount root). Am I right?
>
> Then, after creating partition table and adding new drive into RAID, would
> simple:
> # grub-install /dev/sda
> do the job?
>
> Anything else to think about?
Can anyone just confirm that it is safe to use auto reassemble RAID feature
from Debian installer?
Thanks!
Regards,
Veljko
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