> I use 2 dell 2650 machines with fibre HBAs to an EMC Clarrion 600CX (1Tb > of storage). I expose 2 LUNS to 1 server and another 2 to the other > > All 6 SMTP mail servers nfs mount the maildir structure ([a-b][0-9]/[a- > b][0-9] directory structure) from the two NFS servers in addition to 4 > pop servers. > > We process in excess of a million mails a day and find that the 2 > servers, although are busy, cope with the load. I intend to put another > 2 NFS servers for scalability, exposing each LUN from the SAN to 1 > server only. > > Just for completeness, the SAN is only at 5% CPU utilisation.
Forgot to add that all machines run RHEL3.
