[CentOS] Shrinking a volume group
hyclak at math.ohiou.edu
Tue Sep 12 19:48:55 UTC 2006
On Tue, Sep 12, 2006 at 02:41:33PM -0500, Steve Bergman enlightened us:
> I did something stupid when setting up a server which is now live. I
> think I'm stuck.
> I set up swap on Raid1 which is decidedly non-optimal. I'd prefer 2
> independent swap partitions at the same priority.
> Here is the set up:
> /dev/sda1 + /dev/sdb1 -> md0 (raid1)
> md0 -> VolGroup00
> VolGroup00 -> VG00LV00(/), VG00LV01(/home), VG00LV02(swap)
> I've gotten as far as :
> Turning off swap and removing LV02.
> Next step would be to shrink VG00. But it looks like you can only
> shrink a volume group by removing entire PV's. I only have 1 PV.
> So I think I'm stuck.
> Any ideas?
Yes, leave it as a mirrored partition so when memory is swapped out to a
disk that dies, your server does not panic.
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