We have cyrus servers deployed at many places where clients have varying mail storage. We have been taking backups to help in situations of human errors ( where you get complaints like ..oops, I accidentaly deleted all my mails!! ) and in case of hardware failures Things have been working fine but off late we find that emailusage has grown and so our backups take too long to complete .. we use dar to take differential backups and take backups everynight. and transfer the backup files to a remote server. If the backup is still running in the morning people notice a considerable degradation of the server performance Is there a better strategy , probably within the cyrus framework , to take backups efficiently Thanks Ram ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html