Its QuickBench utility tests with data transfer sizes ranging from 1 KB to 1 MB and graphs Sequential and Random read and write speeds and also gives you a numeric read out, as shown below. Your CPU speed will affect the throughput you see. The screenshots below are for the Maxtor drive in the MacAlly enclosure. Remember, current bridge board technology limits maximum throughput to about 15 MBps, depending on your FireWire interface and Mac processor speed. HDST also comes with the Integrity utility that can test your FW, IDE, or SCSI interface for reliability.
Integrity writes a pattern of data to the drive and reads it back - over and over.
Intech recommends testing the FW interface for as long a period as possible, since problems are more subtle with this type of interface. As mentioned, Integrity is the only utility that I am aware of for testing a FireWire disk interface. The current max throughput limit of 15 MBps will be pushed back probably to UltraDMA 33 speeds with the next generation of chips. But with Indigita's SIM extensions and HD Speed Tools' RAID 0 striping, you can achieve 25 MBps with two FW drives today. If you're buying the enclosure to use on a beige G3 or older Mac, be sure you can return the enclosure if you have problems.