[Dovecot] Backing Up
Daniel L. Miller
dmiller at amfes.com
Fri Oct 31 03:03:50 EET 2008
Stewart Dean wrote:
> Dave McGuire wrote:
>> On Oct 29, 2008, at 3:42 PM, Scott Silva wrote:
>>>> What is the best way to do a (server-side) backup of all mail in a
>>>> user's mail?
>>> I usually just rsync the /home directories to another server. The
>>> inital sync
>>> can take a while, but it gets faster after there is a base to work
>> ...and it's much less painful if you're using maildir instead of mbox!
> I have to wonder. I have a mailserver that I do a bootable complete
> image copy of with all files and O/S in two hours to an Ultrium-2
> tape, 95 GB. When I switch to maildir, I will go from some 25,000
> mbox files to 2.5 to 3 million files...I can't believe that isn't
> going to hurt and will force me into incrementals.....
Well, I can't talk about an installation of that size - but I CAN say
I've been using an rsync based backup and been thrilled with the
results. I'm supporting a measly dozen users, but I'm incrementally
backing up our complete server on a nightly basis. I think the script
now takes less than an hour to run - for a complete backup.
Since I'm doing this via a VPN to a server at my house, it makes it
rather convenient. I love having an immediately available backup I can
ssh to - that now represents a daily snapshot for over a year - so when
one of my users says, "Um...if I deleted a file that I've been working
on for the past two weeks...can you get it back?"
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