Pausing Cyrus for Snapshots?

[Jared Watkins]

I've not been able to find the answer to this in the docs or mailing 
list...   I'd like to use the snapshot feature of the linux volume 
manager to take block level snaps of the cyrus databases and mailstore 
at regular intervals.  To ensure consistency of the databases I assume 
you need to shut down cyrus...  but I was looking for a way to do this 
without disconnecting imap and pop clients... a way to suspend 
operations.. flush the databases and sync the disks before taking a snap.

Thanks,
Jared
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