[linux-lvm] software RAID over LVM
Kirby C. Bohling
kbohling at birddog.com
Tue Jan 29 17:53:02 UTC 2002
Paul,
I haven't done it. I have done mirrors underneath, but I am curious what
is the reasoning and/or application. The only thing I can think up is
so you can migrate your mirrors to faster drives easily. However,
putting the mirror underneath should allow you to move off one mirror
onto another.
I don't believe that mirroring can be expanded like a filesystem can. In
order to make the mirror bigger, you have to break the mirror as far as
I know. So what are you planning on doing with it, or is it just "to
see if it could be done".
Thanks,
Kirby
lvm at agilecat.mailshell.com wrote:
> Hi all,
>
> I understand the use of LVM over software RAID.
> But is it possible to use software RAID ON TOP
> of LVM? For example, have a RAID-1 mirroring
> array created from two logical volumes.
>
> I've tried and it seems to be working. Is
> it safe to do this? Any pitfalls?
>
> Thanks!
>
> Paul
>
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