[CentOS] Backup solution to backup /var/spool/imap above 150GB data

Eero Volotinen 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.
>> David
>
> backup directory structure is /var/spool/imap/a
> /adomain.com/a/agnello^dsouza/
>

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
file.

--
Eero


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