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Subject: Re: [linux-lvm] Using LVM Mirroring to obtain a usable backup
From: Ambrogio De Lorenzo <ambrogio.de.lorenzo@alice.it>
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Date: Wed, 16 Sep 2009 21:03:48 +0200
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To: LVM general discussion and development <linux-lvm@redhat.com>

Il giorno mer, 16/09/2009 alle 11.19 -0700, malahal@us.ibm.com ha
scritto:
> Ambrogio De Lorenzo [ambrogio.de.lorenzo@alice.it] wrote:
> > Hi all.
> > I'm doing a big upgrade on my computer and I tryed to use lv mirroring
> > to obtain a copy of my data before to do it.
> > 
> > As I do with LVM on other OS i thought that after mirroring one could
> > chose to split the mirrored lv.
> > 
> > I can't find how to do it with LVM2 on Linux.
> 
> snapshot may be a good fit in this case, but if you insist you can use
> lvconvert to convert your linear volume to a mirrored volume. Once the
> sync is complete, you can use the same lvconvert to convert the mirror
> volume to a linear one.
But with this I loose the secondary copy.
It's not a good idea.
Backup and destroy backup :-)

Bye
 Ambrogio