We're a site who has been using IMAP with mbox style mail "folders" for a decade. It's obvious that as we boost mail quotas, mbox "does not scale". Thus, we are planning for a conversion to Cyrus, on Linux.
For planning purposes, I'd like to get input from Cyrus sites as to issues they've encountered in performing backups and restorals, particularly with coherency, given that each message becomes an individual file. The Many Small Files issue is apparent, but there are probably other things that sites have learned the hard way that could help others. One unobvious issue I can think of is how to best perform mail investigations via restorals, as called upon in subpoenas. (A search of the ADSM-L archives turns up next to nothing on Cyrus and TSM.) I'd be happy to hear any other practical recommendations for efficiently implementing Cyrus, based upon site experiences (disk arrangement, file system type, directory architecture, etc.). Whereas that would be off the TSM topic per se, feel free to email me directly ([EMAIL PROTECTED]). thanks, Richard Sims
