On Wed, 1 Dec 2010, Ron Vachiyer wrote: > > Hello, > > I am pretty much done testing a 2.4.5 Cyrus setup to replace an aging > (2.1.x) installation. I have about 36GB of spool, 11,000 accounts or > so. > > I have done some small-scale testing of using imapsync to fetch the > contents of the legacy imap folders which seem to work successfully. > My question is, when it comes time to migrate, is it safe to allow lmtpd > to forward mails to mailboxes that theoretically could be getting > imapsync'ed at that time? Or is my only option to spool inbound emails > until the imapsync is done? I'm guessing that, from the speed I saw > imapsync run, that this might take a good number of hours to complete. > As well, is it safe/unsafe to allow imap/pop3 connections to those same > mailboxes during the sync? > > I am open to any ideas should I be looking at this migration the wrong > way. I read about using rsync to copy the files directly, however I am > wondering if the jump between 2.1 and 2.4 might be too large and cause > unforseen issues. Why not run imapsync multiple times in the lead-up to the actual migration? That way, your final migration can be very short because there will be very little data that needs to be sync'd. I think it would be wise to disable imap/pop3 connections and lmtp delivery while you are performing the final migration. Andy ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
