Northern Telecom DMS-100 Series Maintenance Manual page 75

Procedure 4-19
Disk condition and disk file error messages - procedures
Check if the disk firmware version is correct for this
processor.
Enter:
>DISK VS (cr)
If the VERSION number is not correct, there is a
problem in the MSGROM. go to step c.
Power cycle the standby processor.
i. Power down the standby processor.
- See Power Supplies, Procedure 17-1 in
297-1001-536: DPP Card Replacement
Guide .
- After the disk drive has stopped completely;
power up the processor.
- After power up activity has ceased, go to
step d.
Perform a processor switch via input command.
Enter:
>SWACT (cr)
i. After processor switch activity ceases, go to
step e.
DPP Recovery and Routine Maintenance Guide BCS35 and up
Disk drive procedures 4-41
(continued)
(at the terminal)
Proper response =
D01D6I-00:3/10/89
this is the active disk ( firmware
version for any BCS using 380
Mbyte disks w/o 56K polling; verify
that there have been no version
updates since the original DPP
installation. If there have been,
substitute the new version number
in the proper response.
(at the terminal)