Epson 286 PLUS Manuel D’Utilisation

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 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.

This test checks the read and verify capability of the hard disk

on the specified range of cylinders and heads. The program

performs both sequential and random read and verify operations

and reports any errors.

C- 18

Performing System Diagnostics