Nathanael, Nathanael D. Noblet wrote: > I know this has been asked a few times. I've gone over the questions, > but am wanting to make sure I fully understand some parts, to make sure > what I am doing is actually useful. > > I have a Cyrus installation (RHEL 4 rpm). It works, all setup etc. It > automatically creates a gz textfile of the mailboxlist files every day > etc. > > I would now like to create an offsite backup of the two directories I've > read need backing up. I've used rsync many a time for stuff like this so > figure I'll use it again. I don't want downtime to do the backup, so > need to know what kinds of problems can happen by running an rsync of > the spool directory. I'm rsyncing to another machine every day. The store is about 75 gigs and it takes about 2 to 2 1/2 hours on my hardware. Never had problems with it and already had to recover from a system crash a couple of times. > Obviously if the rsync takes anything but moments, there is a good > chance that it won't catch some of the mail. I'm okay with that. The > rsync will run each night, and if it isn't all there that's okay. > Missing a handful of emails is not a problem in our books. So if I have > the /var/lib/imap directory, which contains the berkeley dbs, and the > text version of the mailbox list. Plus a near recent copy of the spool > directories. I would be able to pretty much restore a copy roughly 24 > hours old in the case of a major failure. With crash recovery this is the best you can do and the fastest option you have. Be shure you sync everything including the sieve and config/user data. > Are these assumptions correct? Or not stopping the cyrus server will > make my spool directory grow a litter of kittens and make it impossible > to restore a functioning server albeit potentially missing a few > emails... Correct IMO. I moved the tls_sessions and the duplicate delivery databases out of the way before starting cyrus after succesful recovery. Henk -- Henk Roose CWI - Centrum voor Wiskunde en Informatica Centre for Mathematics and Computer Science Amsterdam (NL) ---- Cyrus Home Page: http://asg.web.cmu.edu/cyrus Cyrus Wiki/FAQ: http://cyruswiki.andrew.cmu.edu List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
