Epson LT - 286e - Manual (Page 34)

Check Test Cylinder
This test checks the test cylinder, which is the last cylinder on
the hard disk.
Perform this test if you receive a hard disk error when you boot
the system.
When you select Check Test Cylinder, DIAG requests the disk
drive identifier and disk drive type.
Force Bad Tracks
Use this test to mark bad tracks on the hard disk without
formatting the disk.
When you select Force Bad Tracks, DIAG requests the
following hard disk parameters:
Disk drive identifier
Disk drive type
Starr cylinder number
End cylinder number
Start head number
End head number
DIAG displays the following messages after you specify the hard
disk parameters:
W A R N I N G
All data on Hard disk you have
specified may be LOST...
Do you still want to continue (Y/N)?
System
Diagnostics 29