Destructive diagnostics tests include:

Hard Disk Format

Auto Interleave

Media Analysis

Force Bad Tracks

The non-destructive diagnostics tests include:

Performance Test

Seek Test

Read/Verify Test

Check Test Cylinder

Hard Disk Parameters

DIAG may request any or all of the following parameters before performing a following hard disk test:

Disk drive identifier

Disk drive type

Interleave factor

Bad track list

Start cylinder number

End cylinder number

Start head number

End head number

Disk drive identifier

DIAG displays the following prompt for the disk drive identifier:

Disk Drive (C/D)? c

If only one hard disk is connected to the computer, DIAG assumes it is drive C and does not request a response to this prompt.

System Diagnostics 21