On 11/16/2011 1:36 PM, Martin Schütte wrote:
On 11/16/11 18:17, Daniel Bromberg wrote:
I was wondering what data backup systems people use?
I found that filesystem snapshots are the easiest solution.
Depending on disk space I keep several snapshots around and at night one
is used for an incremental backup with dump(8).
I use rsnapshot. It can do local or remote backups. It uses rsync so
co-ordinates the snapshots. It also allows rotation in a very neat way.
It uses links within the rotations when a file hasn't changed. So,
ultimately, it only stores one copy of each file, if it hasn't changed,
and the rest are links. All of this assumes MailDir use, as mbox files
can grow so large that copies take forever. And backups would be
different files for every day. You can set what you want to backup, so
you could grab things like system users and groups... Postfix configs...
password/shadow files... whatever you feel would be useful should (when)
a quick restore needs to happen.
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John Hinton
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