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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 22:22:33 +0200
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Il giorno mer, 16/09/2009 alle 22.03 +0200, Andr=C3=A9 Gillibert ha scritto:

> > 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.
> >=20
>=20
> Then, create a short-lived snapshot, dd the snapshot to the other disk, a=
nd then, remove the snapshot.

Hm...=20
Another no good approach.
In this way I loose everything appens to disk between the moment in
which I take the snap and the time in which dd end. I think at least 6/7
hours.

The good and most secure way is to mirror disks. In this way all blocks
are replicated, all I/O are replicated and disks are syncronized when I
shutdown the OS.

I will shutdown in a few moments and start an offline dd. Is the last
chance.
I hope it end fast

Bye
 Ambrogio