Thank you Simon! To clarify one point, when you say "the RPM takes care of it automagically", does that mean that I should rsync the old data to the new server BEFORE installing the cyrus-imapd 2.3.16-8 RPMS? The new servers will be bare-bones -- no pre-existing data or older version of Cyrus. John John Simpson Senior Software Engineer, I. T. Engineering and Operations > -----Original Message----- > From: Simon Matter [mailto:simon.matter@xxxxxxxxx] > Sent: Thursday, October 14, 2010 10:56 AM > To: Simpson, John R > Cc: info-cyrus@xxxxxxxxxxxxxxxxxxxx > Subject: Re: Moving data from Cyrus 2.3.7 (RHEL) to 2.3.16 (Invoca) > > > Greetings all, > > Hi John, > > > > > We have been running Cyrus 2.3.7, as packaged by Red Hat > > (cyrus-imapd-2.3.7-2.el5) for some time, and we're upgrading to 2.3.16 > > (cyrus-imapd-2.3.16-8, thanks Simon) to support replication. We will be > > You are welcome! The RHEL package is based on ours but it's a bit old now. > > > deploying new servers for 2.3.16, not upgrading the existing servers. > In > > the past, we have simply rsync'd /var/spool/imap and /var/lib/imap to > the > > new servers, but this doesn't seem like a good idea when dealing with > > different versions and packagings. > > The good news is you should not have to worry about anything, the RPM > takes care of it automagically :) > > If you are able to test things and quickly shutdown the old production > servers I tried it the following way: > > 1) Check /etc/imapd.conf and /etc/cyrus.conf on the old and the new > server. I think they should be identical but better look at them. And of > course also check your auth config, for example if you are running > saslauthd and such. > > 2) rsync -aH --delete (you may really want to sync hardlinks as well!) > /var/spool/imap and /var/lib/imap from old to new while old is running. > > 3) service cyrus-imapd stop on the old box so databases are in a > consistent state (and are converted to skiplist for migration if they are > not already skiplist) > > 4) Rerun the rsync, should go quite fast now > > 5) Start Cyrus on the new box and check how it works. > > Please let me know if you have any problems. > > Regards, > Simon ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/
