On Tue Jul 14, 2009 at 10:44:15AM -0500, Ben Beuchler wrote:
> >> umount /dev/sdb4
> >> mdadm --build /dev/md0 --level=1 -n2 /dev/sdb4 missing
> >> mount /dev/md0 /mail
> >> mdadm --add /dev/md0 /dev/sda4
> >>
> >> Will that work? Or am I misunderstanding something fundamental?
> >
> > It'll work but you'll be using a legacy array without superblocks, so you
> > can't have various features that come with superblocks
>
> Right; for this particular application I'm willing to give up
> superblocks. Just to be 100% sure, thought: the way I've described
> the process would be non-destructive of the data on sdb4?
>
Yes - there'll be no need to write to sdb4 at all. Be aware that,
without a superblock, the array will need to do a full resync every
single time you start it (unless you use the --assume-clean switch, in
which case you could be risking corruption).
Cheers,
Robin
--
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( ' } | Robin Hill <robin@xxxxxxxxxxxxxxx> |
/ / ) | Little Jim says .... |
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