[rt-users] Hardware requirements

[Dan O'Neill]

Here is the RT wiki article regarding performance tuning.

http://wiki.bestpractical.com/index.cgi?PerformanceTuning

The key understanding is that the server on which the DB runs needs to 
be wicked fast. (No, I'm not from Boston, but have friends who are)

Don't make the mistake of going with big cheap SATA drives, go with 
smaller SCSI drives and arrange them in a RAID 0+1 configuration so that 
you get striped and mirrored data sets.  With SCSI drives you get 
greater parallel drive performance as the actuators can be moved into 
position on all drives simultaneously.

If you insist on going SATA, get the Western Digital Raptor drives. 
They're more expensive...  look at these graphs
http://www.tomshardware.com/2005/09/27/round/page33.html

In general, wicked fast equals:

   Fast disks + enough RAM for indexes + enough CPU

Disk and memory I/O will almost always be the bottleneck for your DB.

dano