Epson 386/33 PLUS User Manual

This test identifies the bad tracks on the hard disk by analyzing

the surface of the disk to find them. The program uses three

different bit patterns; formatting the disk, marking the bad

tracks, and displaying the bad track list.

The Media analysis test destroys any data on your hard disk.

This test checks the performance of your hard disk by

determining the data transfer rate and track-to-track seek time

based on the transfer size, the seek count, and the amount of

data transferred. The program measures the data transfer rate

in kilobytes per second. It reads 64KB of data 15 times and

counts the number of timer ticks using this formula:

Transfer rate = (64KB x 15 x 18.2) / # timer ticks

The program measures track-to-track seek time in milliseconds

using this formula:

Seek time = (# timer ticks x 1000) / 18.2 x 200

The number of seeks in this example is 200. A higher data

transfer rate and a lower seek time indicate better disk

performance.

This test checks the seek capability of the hard disk on the

specified range of cylinders and heads. The program performs

a series of sequential seeks followed by random seeks and

reports any errors.