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List:       info-cyrus
Subject:    Re: backup question
From:       Michael Fair <michael () daclubhouse ! net>
Date:       2002-06-27 6:05:39
[Download RAW message or body]

As well as for users of the LVM Volume Manager.

-- Michael --

----- Original Message -----
From: "Igor Brezac" <igor@ipass.net>
To: "Herman Sheremetyev" <herman@resume.com>
Cc: <info-cyrus@andrew.cmu.edu>
Sent: Wednesday, June 26, 2002 11:31 AM
Subject: RE: backup question


>
> On Wed, 26 Jun 2002, Herman Sheremetyev wrote:
>
> > I guess I should clarify a bit.  Given that the messages are stored in
text
> > files, my understanding is that cyrus keeps track of them using a
database
> > which is how it's able to perform quick searches and lookups, etc.  If
this
> > is correct I need to be able to backup both the message text files and
the
> > db at the same time and make sure one is in synch with the other.  If I
get
> > new mail while the backup is being performed, the backed up copy of the
> > database will be corrupt since it was modified during the backup.  Am I
> > right or am I totally missing something about how this works?
> >
> > Thanks for the responses everyone,
> >
>
> This is correct.  If you use Solaris 8 or higher (or if you have Veritas
> file system) you can use 'fssnap' to create a snapshoot of your cyrus
> filesystem.  Do the backup and 'unsnap' the filesystems.  No downtime
> needed. :)
>
> -Igor
>
> PS. This is available for ext3 on Linux as well, snapfs.
>
>

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