Nortel DMS-10 Series Installation, Operation And Maintenance Manual page 478

6-40 Section 060-INDP-610 Maintenance Procedures Guide
Procedure 6-12
Disk Drive Diagnostic
Step Description
123
Enter the following commands to list the BMC alarms and identify the disk mode.
>ERRMAP ALARMS (cr)List the current BMC alarms.
System responds with a list of alarms on the active and standby processors. CP prefixed
ERRMAP alarms indicate a problem in the 56K Interface PCA.
>DISK MODE (cr)Determine the current BMC disk mode.
System response: DISK MODE xx
where: xx - current disk mode (AO, BO, AP, BP, or NONE)
>REPORT DISK x (cr)List the disk statistics report for today (x = TDAY) and
yesterday (x = YDAY).
System responds with a report listing details of both the disk drives. Take note of the
presence of SCSI BUS ERRORS and/or DISK ERRORS for each of the disk drives.
Note: The A disk is in the top shelf and the B disk is in the bottom shelf.
124
If the messages DSK 70% PRIMARY, DSK 90% PRIMARY, DSK STORE LIMIT, or
DIRECTORY FULL occur, there may be problems related to polling.
Perform the Polling Diagnostic Procedure to clear the problem. If there is no polling
problem, proceed to step 10.
Note: High usage alarms are usually related to polling problems. Contact the HOC to confirm
polling is working correctly.
297-6201-502 Standard 01.02 September 2000
Note 6: This procedure assumes that the disk subsystem worked at one
time and no PCAs or disks have been replaced by previous
troubleshooting activity.
Note 7: Disk subsystem alarms often appear in groups and
troubleshooting activity requires using all the presented information to
correctly diagnose the problem.
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