HDtach is a great test of a systems
hard drive throughput, its widely used in the hardware
community as an accurate bench.

I wasnt expecting miracle from a dual
4,200rpm raid setup, however the results are decent even
if the access is sluggish around 20ms, of particular note
is the excellent 1% cpu usage, a good showing from the
promise controller. In real world use I found this system
more than capable of anything I threw at it with even
a large paging file in Photoshop performing well.