OS/2 products.
17-Jan-93 20:28:12
Sb: #37067-OS/2 products.
Fm: Ken Nicholson of _/\/\/~ 75300,2772
To: Bill Simonsen 70007,6172
Bill,
The PAS 16's SCSI interface is nominally rated at 690Kb/sec. This is the
theoretical maximum. In practice, it will be somewhat lower (your mileage
may vary). Disk seeks, spin up time, directory searches, all contribute to
slower effective transfer rates.
I've devised a benchmark called the LoadStone. Find a large file (20MB or
larger) on the SCSI device. Then type this instruction while using a watch
to measure the duration in seconds:
copy /b bigfile.dat >NUL
The redirection to NUL ensures that the write time of the target device is
not involved. Divide the file size by the number of seconds and you have
the effective transfer rate or LoadStone measurement.
Under OS/2, I've measured 497Kb/sec from an external hard disk connected to
the PAS 16.
Ken