Northern Telecom DMS-100 Series Maintenance Manual page 161

Procedure 4-60
Disk drive hardware error messages - procedures
1
xxxxx BAD TRACKS
(w/o 56K polling)
2 Alarm Level:
Response (to DISK INIT
command)
3 Customer-Selected
Alarm Level
4 Other Alarm Indications
5 System Recovery Action
6 Craftsperson Activity
where: xxxxx = number of bad tracks.
cause: printed during:
Reason Code = N/A
Corresponds to ERRMAP entry: N/A
System Default:
Default:
Status Panel:
Customer-Selected
Status Panel:
None; information message.
Note the number of bad tracks; if more than 3% (or an
average of 1 bad track per megabyte of disk drive space)
of the total disk capacity, replace disk drive and then
perform the following steps:
a. Initialize the disk.
CAUTION
Improper performance of this procedure may cause a loss of data.
Make sure the operational disk drive is in DISK ONLY mode prior
to entering commands.
b. Replace the Disk (SCSI Intf) Interface PCA in slot
(continued)
DPP Recovery and Routine Maintenance Guide BCS35 and up
a. initialization procedure, to show the
number of bad tracks on the disk, detected
by the mapping process.
b. the DEFMAP procedure, to show the
number of bad tracks entered by the
Craftperson as indicated on the
manufacturer's defect map.
Type: N/A
Type:
11 of the standby chassis
Disk drive procedures 4-127
Level: N/A
Level:
Audible:
Audible: