Can murder be used for IMAP server migration?

[Ken Murchison]

Gary Mills wrote:
> My current e-mail server has both SMTP and IMAP running on the same
> machine.  I'm building a new IMAP server on a different machine that
> will ultimately have ten times the capacity.  I'm looking for a way to
> migrate mailboxes from the old server to the new one without shutting
> down the whole service for an extended period of time.
> 
> Can I use the old server as both a front end and one of the back ends
> for a murder configuration, with the new server as the second back end?
> Will that allow me to migrate mailboxes at my convenience?  How do I
> prevent a port conflict between the IMAP server and the proxy on the
> old server?

You'll have to run the frontend + mupdate master on a separate machine.


> Do I have to run the same Cyrus version on both machines?  Currently,
> the old server runs cyrus-imapd-2.1.14 and the new one runs
> cyrus-imapd-2.3.6.

No, assuming that 2.1.x has support for the XFER/DUMP commands (I don't 
recall).


-- 
Kenneth Murchison
Systems Programmer
Project Cyrus Developer/Maintainer
Carnegie Mellon University