1-114 Trouble locating and clearing procedures (continued)
297-8021-544 Standard 14.02 May 2001
Replacing a 14-in. disk drive unit
(continued)
Replacing a 14-in. disk drive unit
At your current position
1
Obtain the following items:
•
a light source
•
a mirror
•
a set of nut driver
•
a 1/4-in. flat-bladed screwdriver
•
side cutters
•
cable ties
2
Obtain a shipping carton for the DDU that has faults and you will replace. If
possible, use the carton that stores the new DDU.
At the MAP terminal
3
To access the IOD level of the MAP display, type
>MAPCI;MTC;IOD
and press the Enter key.
Example of a MAP display:
4
Note any alarm under the IOD header and the type of alarm.
5
To post the IOC for the DDU that has faults, type
>IOC ioc_no
and press the Enter key.
where
ioc_no
is the number of the input/output controller (IOC) that holds the
controller card for the DDU (0 to 19)
Example of a MAP display:
CAUTION
Loss of service
Disk allocation is difficult and the possibility for a severe
error exists. Contact the next level of support before you
perform this procedure.
IOD
IOC
0
1
STAT
L
.