[linux-lvm] Re: Split LV mirror or something

[malahal at us.ibm.com]

Stuart D. Gathman [stuart at bmsi.com] wrote:
> On Wed, 16 Jul 2008, Levy Abinajm Melero Sant'Anna wrote:
> 
> > > I have one LV with some critical data, and want to make a safe copy with
> > > less time possible of downtime. Could I make one mirror on a new PV
> > > (lvconvert -m1) and split this copy into a new LV or/and maybe split the VG
> > > into a new VG?
> 
> Why not take a snapshot, and copy that to an LV on new VG ?

More over, this is a better approach than an LVM mirror in your case.