Disk Drive Procedures; Disk Drive Recovery Procedure - Northern Telecom DMS-100 Series Maintenance Manual

Disk drive procedures

Disk drive recovery procedure

Use the following procedure when the disk drive(s) are malfunctioning. If a
message indicates a disk drive has malfunctioned, remember to wait a few
minutes to see if the message repeats, or if another disk malfunction occurs.
The problem may be transitory, in which case there is nothing wrong.
This "procedure" is divided over a series of individual procedures. The first
procedure determines if the disk system is actually at fault. Subsequent
procedures proceed through mode changes, initialization, formatting, and
disk drive replacement.
DPP Recovery and Routine Maintenance Guide BCS35 and up
4-1