[CentOS] Backup solution to backup /var/spool/imap above 150GB data
eero.volotinen at iki.fi
Wed Feb 24 10:38:50 UTC 2010
2010/2/24 Agnello George <agnello.dsouza at gmail.com>:
> On Wed, Feb 24, 2010 at 3:08 PM, David Hrbáč <hrbac.conf at seznam.cz> wrote:
>> Dne 24.2.2010 10:00, Agnello George napsal(a):
>> > Hi
>> > We have an issue with one of our clients , they have a mail server with
>> > the /var/spool/imap partition as 150 GB . They need to take
>> > differential
>> > backup on to /backup partition ( a different HDD of total 250 GB space
>> > ) .
>> > We have tried dar , rsync, rdiff and impasync . But its is not sufficing
>> > the
>> > need as to take a lot of time and consumes a lot of I/O .
>> > Is there any back up solution that you can think of , that can work in
>> > this
>> > situation - open source or proprietary
>> Is seems to me, that you are using mbox format. So, differential backup
>> is hard to achieve. Migrate to maildir, every mail is a file, easy to
>> backup differentially.
> backup directory structure is /var/spool/imap/a
Well, does that directory contains one file or lot of files ?
Usually maildir structure is like dir++/tmp/current/new directories
and each message is in own file on mailbox all files are inside one
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