Greetings.
As part of a new installation of dovecot, we are exploring backup options, and wondered if it's at all possible to define a couple of namespaces where messages get duplicated to be saved in another disk for fast recovery. (we do not intent to load balance between the two, all we would like is to see if it's possible to have duplicate mailboxes so to keep a fast working backup _besides_ normal methods: tape, external disk, etc.)
The whole idea behind this would be that in case of a major failure of the array holding the mailboxes, a fast working backup can be put in place. Other thing we would like to know (and i reckon it's a long shot) if it's possible to "hide" this mailbox copy from the IMAP clients, so as to prevent any user from subscribing _again_ to the same folders. Naturally this last thing is to be considered only if the former (mailbox copy trough namespaces or other dovecot _internal_ method) it's at all possible.
Any feedback or better ideas are totally welcome.
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Julio C. Ortega Grupo de Infraestructura ONUVA | Integración de Sistemas http://www.onuva.com