420 Series
3-43
(c)
Bad track register
The Bad Track register prompt will appear as shown below. Enter the
cylinder and head numbers of bad tracks and press Enter. Note that if there
are no bad tracks, pressing Enter alone is the same as executing All Track
Format described in item (c) below.
[ WARNING : Current DISK data will be
completely destroyed ]
Press Bad cylinder number (dddd)] key ?
Press Bad head number (dd)] key ?
Enter the cylinder and head number in the format above in decimal notation.
Repeat for each bad track you want to format.
After entering the bad tracks, press Enter to execute the format.
(d)
All track format
All tracks are formatted as good tracks except those registered as bad tracks
in item (c) above or those identified as bad tracks in track verification de-
scribed in item (e) below.
(e)
Track verification
A check is made of all tracks and if an ECC error, ECC-correctable-data
error or record-not-found error is detected at a track, that track is formatted
as a bad track automatically.
2.
Good track FORMAT
If a good track has been erroneously formatted as a bad track, you can use this
subtest to reformat the track as a good track. To format a track as a good track,
enter the number for drive, interleave, cylinder, and head as indicated in the screen
prompt shown below.
Drive number select (1:#1, 2:#2) ?
Interleave number (1 / 1 - 8) ?
Press [Cylinder number (dddd)] ?
Press [Head number (dd)] ?
Press Enter to return to the Hard Disk Format menu.
