Hello I'm looking for some good ideas how to design a redundant mail server (maily the POP3/IMAP and data storage and not the pure SMTP relay part).
We already tried a combination of two server with mon, DRBD and NFS which was simply to complex and error prone i.e. we often had the case that one server did not shut down due to NFS mounts which were not visible or DRBD syncing way too slow. So this time it should be something simple that everybody can handle in a case of emergency like powerloss at night etc. As far as I can see the main question is - shared storage i.e. two computers and one external SCSI RAID or one external NFS RAID - separate storage i.e. each computer has it's own internal RAID and one standby is rsyncing the master server and waiting for maybe manual command to take over the IPs. Shared storage would be neat as we could do real load balancing on POP3/IMAP servers as well but has anybody a recommendation for a NFS (or something else?!) backend that is really reliable so that suddenly dead hosts causes no problem? (and of course which has a stable NFS, my last Arena RAID in '98 causes NFS errors itself on certain commands so we had to give it back :-() thanks in advance, -christian- -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
