Hi there, We are running a cyrus IMAP murder for thousands of users with around 3TB of mail. We have a number of backends that each have attached storage for the mail store. We are currently using solaris 10 to run the murder on. We want to try and improve the resilience of our setup and are looking at a number of options to provide High Availability: 1. Using the latest version of cyrus to implement backend replication so that we have stand by spares for the murder if one of the backends go down. 2. Use Sun cluster to provide automatic failover for the backends somehow or another. 3. Some other solution we haven't thought of yet If anyone out there has though this kind of thing through or has experience of implementing Cyrus IMAP in a SUN Cluster environment, we'd love to hear from you, regards, Gavin. -- Gavin Gray Edinburgh University Information Services Rm 2013 JCMB Kings Buildings Edinburgh EH9 3JZ UK tel +44 (0)131 650 5987 email gavin.gray@xxxxxxxx -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. ---- 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