HD Tach RW 3 tests the sequential read, random access, and interface burst speeds of attached storage devices. It is currently only available for Windows 2000 and XP users. Quite honestly, most PC users should be using at least XP Home Edition for the most reliable/stable OS Microsoft has released in order to get the full benefits of internal and external devices. If you need HD Tach for Windows 95, 98, ME and NT 4.0, there is HD Tach 2.7.
The following results are from formatting the Fujitsu MHV2120AT to FAT32. You may notice the "0%" CPU Utilization figure. Since HD Tach has a +/- of 2%, this could mean the drive was using 2% of the CPU. Since the drive was tested on a dual-processor motherboard (Abit VP6 with 2-1Ghz processors), HD Tach may have been confused. For example, once processor may have been using 0%, while the other processor was using 2%. Depending on the software application, one or two processors may be used. In either case, this demonstrates the very low power requirement of the Fujitsu MHV2120AT (just like the MHV2080AH).
Non-Partioned "Quickbench" Results
The HD Tach RW 3 "Quickbench" results consist of a 4MB preread area and a 4MB test area (8MB). From the above graph, the Fujitsu MHV2120AT demonstrated the following:
- Average Read Speed of 18.6MB/s
- Average Write Speed of 13.7MB/s
- Burst Speed of 10.5MB/s
- Random Access of 20.7ms
- CPU Utilization of 0% (+/- 2%)
Non-Partioned "Longbench" Results
The HD Tach RW 3 "Longbench" results consist of a 16MB preread area and a 16MB test area (32MB). From the above graph, the Fujitsu MHV2120AT demonstrated the following:
- Average Read Speed of 18.6MB/s
- Average Write Speed of 13.7MB/s
- Burst Speed of 10.5MB/s
- Random Access of 20.7ms
- CPU Utilization of 2% (+/- 2%)
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