backup rsync

[Simon Matter]

> Am Freitag, den 29.08.2014, 07:56 -0700 schrieb David R Bosso:
>> --On August 29, 2014 at 4:27:57 PM +0200 Marcus Schopen
>> <lists at localguru.de> wrote:
>>
>> > Hi,
>> >
>> > I'm planing to use lvm snaps and rsync for a daily disaster recovery
>> > backup on my master cyrus (2.4.12 Ubuntu 12.04 LTS):
>>
>> Have you tested lvm snaps for this purpose yet?  When I tried to use lvm
>> snapshots in this way a few years ago, it absolutely killed performance
>> on
>> the volume with the active snapshots.  Hopefully things have improved,
>> but
>> I wouldn't bet on it.
>
> Yes, I've tested it and don't see any performance problems while the
> snaphot is active. My problem is how to backup about 140 GB mailspool in
> an acceptable time slot. What tools are recommended?
>
> If using rsync what options are best practice?

I suggest -aH to preserve single instance storage in the backup.

Simon