I manage a server that has worked quite well for nearly three years. In just the past few days, it has slowed way down. I notice this mainly from the server console. If I try to browse the contents of the folders, it seems to take forever. When opening applications - for example, event viewer, Start, Admin Tools open quickly. Event Viewer itself is slow. Getting the details for an event is very slow. The same is true for opening management utilites. Task Manager shows almost no CPU activity. System Idle is usually in the 90% + range. But the hard drives seem to be working pretty hard. Configuration is a 7 x 250GB SATA drives in a RAID5 with one hot spare. All configured as Drive C. One other hot-swap drive is available for backup as drive E: There is a lot of room available still on drive C: (like 650 GB). I checked the 3Ware controller utility and everything seems to be in the green. I am getting a lot NDR messages being sent out from the server. I disabled SMTP for a while and that seemed to help, but not solve the problem. So I enabled it again. Does anyone have any ideas what I can check next??
Oh, and I in the middle of upgrading our Trend Micro SMB Messaging from 3.6 to Worry Free Bus. Security Advanced. Backup is BackupExec 10d.