--On Thursday, March 03, 2005 16:59 +0100 Christoph Moench-Tegeder <[EMAIL PROTECTED]> wrote:
Hi, my employer wants to spend some money and buy a cluster filesystem for our IMAP servers (not that we currently need it, with only about five thousand active users on the largest server). The powers that be want to have "high availability" and "load balancing" (what load?). This sounds like a replicated murder to me. We already do have a SAN (fiberchannel and some spare gigabytes on an EMC) and a cluster filesystem (currently we are evaluating Polyserve, has anyone had some experience with psfs?). I am a little confused over the location of configdirectory, some of its contents (like the DB environment, the socket und the proc directorys) should be kept per node (I believe), while others (as quota files) should be shared between nodes. What about the replicated mailboxes.db? What am I missing?
Two Cyrus can not use the spool concurrently at present. MURDER provides only for load distribution. Replication/failover has to be done seperately 'somehow' Basically the only thing you can do is active/passive setup, as active/active for a given backend is NOT supported in current MURDER.
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