[linux-lvm] mirror setup with LVM

Luca Berra luca.berra at comedia.it
Thu Jan 22 17:04:01 UTC 2004

On Thu, Jan 22, 2004 at 01:02:35PM +0100, fabio_s at inwind.it wrote:
>Hi all,
>I have a redhat 9 linux already installed and I'd like to add a second disk to
>be used as mirror.
>I assume it's easy to do this during linux installation.
>Does someone know how to do that without destrying data on the first disk?
create a degraded mirror on the second disk,
then either
  add this to the vg and pvmove all lv there, then remove the
  standalone disk and raidhotadd it to the array.
  create a new vg on the mirror, copy all data, remove the first vg,
  raidhotadd the disk.


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