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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 18:47:49 +0200
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To: LVM general discussion and development <linux-lvm@redhat.com>

Il giorno mer, 16/09/2009 alle 17.05 +0200, Andr=C3=A9 Gillibert ha scritto:

> Mirroring is software RAID1.
> What you want looks like LVM snapshots.
> See LVM HOWTO to see how to create snapshots.
> A backup may be a good thing to do, too.

snapshot is not a good choise for me. I want to have an identical copy
(like dd) on another identical disk, for fast recovery in case of
failure.

This is what I do with raid hardware, and I would like to know if is
possible to do it with lvm mirroring.

I'm looking also on mdadm to mirror a disk (or partition) but I think it
is not usable when disk is already partitioned and used without mdadm.

Backup is good but is not a good choise in this case, because a full
restore is a long process

Tnx
 Ambrogio