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Date: Tue, 22 Jun 2004 10:55:55 -0400
From: Bill Moran <wmoran@potentialtech.com>
To: Nico Meijer <nico.meijer@zonnet.nl>
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Subject: Re: [OT] Re: What's the best possible email failover solution
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Nico Meijer <nico.meijer@zonnet.nl> wrote:

> Hi Bill,
> 
> > The other option is to take what appears to be the best IMAP server out
> > there (Cyrus) and figure out a way to do real-time mirroring of the
> > mailboxes.
> 
> Depending on the size / number of messages: how about using rsync and 
> OpenBSD's CARP?
> 
> True, it will not be realtime, but the synchronization (note the 
> "depending" above) might take place regularly.

Problem is: rsyncing the mail directories takes about 20 minutes, and the
only way to ensure that a good copy is achieved is to shut down Cyrus
during the backup.  This makes it a little prohibitive to be doing this
very often.

-- 
Bill Moran
Potential Technologies
http://www.potentialtech.com