Nortel DMS-10 Series Installation, Operation And Maintenance Manual page 489

Disk Drive Recovery Procedure
Procedure 6-14
Disk Drive Fault Determination
Step Description
148
Determine the current disk operation mode. Enter: (at the terminal)
>DISK MODE (cr)
System response: DISK MODE xx
where: xx - current disk mode (AO, BO, AP, BP, or NONE)
If the disk system mode shows either disk in the PRIME mode, there is no fault, procedure
complete. Monitor the terminal for any disk error message repeats. If disk system status is
in No Mode or the ONLY mode, go to step 2.
149
Enter the following command to attempt to make the disk system redundant.
>DISK MODE xP (cr)
where: x = A or B
Note: Wait for the appearance of the MODE xx response to this message; the length of time for
the mode change procedure varies, depending upon disk size and input traffic load. If the disk
system status has not changed to redundant, (disk selected in the key sequence above is still
ONLY mode), proceed to step 3.
WARNING
Changing to PRIME mode may cause the AMA ports to be dropped.
CAUTION
If disk usage alarms are observed, do not change the disk mode to prime.
Refer to the Disk Full Procedure subsection.
150
If this procedure is unsuccessful, proceed to the Disk Drive Formatting procedure.
BMC II BISYNC Operation, Administration, and Maintenance Guide BMCB001 and up
Section 060-INDP-610 Maintenance Procedures Guide 6-51