backup without stopping the imap server?

Ondrej Sury ondrej at
Tue Jun 14 05:53:52 EDT 2005

Have you tried using rsync with:

--size-only             ignore mod time for quick check (use size)


On Fri, 2005-06-10 at 10:37 -0700, Andrew Morgan wrote:
> On Thu, 9 Jun 2005, James Treleaven wrote:
> > The best idea I have seen is two rsync's: the first while the server is 
> > running and the second (much faster one) with it momentarily stopped.
> Unfortunately, even rsync can take a very long time.  I'm preparing to 
> migrate to a new Cyrus server and I plan to use rsync.  I've been doing 
> daily rsyncs of the mail spool in preparation for the final rsync while 
> the old server is stopped.  We have about 375GB of mail in 6 million+ 
> files, and the rsync process takes about 6 hours.  It's not the size of 
> the data (although the initial rsync did take considerably longer).  Just 
> calculating the differences for that many files is a lot of work.  :)
>  	Andy
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Ondrej Sury <ondrej at>

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