Northern Telecom DMS-100 Series Maintenance Manual page 51

Procedure 4-9
Disk drive replacement procedure - installing the replacement disk drive
Step Description
12 Reinitialize the new disk. Select either the
recommended procedure (steps 13-15) or
the alternate procedure (steps 16-17.)
13 Enter: (at the terminal)
(Must be in direct mode ).
>DISK INIT 1x (cr)
where:
x = drive
Proper response = INIT COMPLETE
Messages indicating bad tracks may print;
this is normal.
14 Enter: (at the terminal)
>DISK DEFMAP x (cr)
where: x = drive = A = disk drive A
System response is a prompt:
ENTER HEAD AND CYLINDER #
FROM DEFECT MAP
ENTER "Q" TO EXIT
HEAD>xx (cr)
CYLINDER>xx (cr)
Continue entering HEAD and CYLINDER
numbers until the end of the disk
manufacturer's bad track map.
(For any response other than the HEAD and
CYLINDER prompts, see the procedure for
that message and perform the activities
listed.)
CAUTION
These disk commands may cause a loss of data. Make sure the
operational disk drive is in DISK ONL Y mode before entering
commands. (See notes 5 - 7).
= A = disk drive A
= B = disk drive B
= B = disk drive B
(continued)
DPP Recovery and Routine Maintenance Guide BCS35 and up
Disk drive procedures 4-17
Notes
After initialization activities are complete, go
to step 17.
Causes the disk drive specified by "x" to be
initialized using the short init procedure.
For any other response, see the procedure
for that message and perform the activities
listed. (See notes 8 and 9.)
Obtain the disk manufacturer's bad track
map.
Enter the HEAD No. "xx", 1 or 2 digits, from
the disk manufacturer's bad track map.
Enter the CYLINDER No. "xx", 1 to 3 digits,
from the disk manufacturer's bad track map.
(Space before xx digits will prevent MENU
items from being activated).
(continued)