Aleksandar Milivojevic wrote: > Quoting Feizhou <feizhou at graffiti.net>: > >> a courier-imap/dovecot box would only just have to access a SAN and >> that is all there is to clustering. Multiple courier-imap/dovecot >> boxes hitting a database for user info and mailbox location and then >> hitting the san for the files. simple. > > > I think SAN is way out of reach of somebody who is left to build mail > server for > 2000 users with only 40GB drive. Whoa, we were on the topic of clustering...this thread is not quite all about the guy with 2k users anymore... > > Anyhow, what if your SAN storage or NFS server goes down? Your > mailboxes go > down with it. Hm, not much difference there. You are just replacing one > component that might fail, with another component that might equally > fail. This is a rahter complicated issue, and there is no single way to > implement it. SAN != NFS. SAN's provide multiple paths to the data where data is mirrored across different disks and accessible through more than on channel. > Courier works for some folks. Cyrus works for some folks. They are > both good. > You choose one and after some time learn to live with its limitations. I am out to find out those limitations and their environments.