JSI Tip 0173 - BM_DISK is a freeware disk benchmark utility.

Downloads
BM_DISK.zip

BM_DISK from BEI, the producers of UltraBac, will test the raw read capability of your disks.

Usage is BM_DISK «Drive#» where 0 is the 1st disk, 1 is the second disk, etc..

BEI reports that the fastest performance they have seen was from a Compaq raid array which yielded 16 Megabytes/second.