Nortel DMS-10 Series Installation, Operation And Maintenance Manual page 495

Procedure 6-18
DRAM PCA (NT6M64AA) Diagnostic
Step Description
9
The following command will perform a series of tests on the standby processor.
>DOS S TEST (cr)
System responds with a series of tests with results indicated as pass or fail. If the tests
pass and the alarms stays clear, continue with step 4. If the DRAM PCA has been
replaced and the DRAM test fails or a STANDBY PROCESSOR NOT AVAILABLE
message occurs, contact your next level of support.
If the DRAM PCA has not been replaced and the DRAM test fails or a STANDBY
PROCESSOR NOT AVAILABLE message occurs, replace the DRAM PCA in the chassis
that failed using the procedure in the Hardware Replacement subsection. Then, repeat
this procedure from the beginning.
10
Enter the following command to switch processor modes to the standby side.
>SWACT (cr)
System responds with a series of messages indicating the processor switch activity.
>CLK (cr)
System responds with a time stamp and identity of active processor.
>IDXMAINT DIR OPEN AMA (cr)
System responds with the detail of the current open AMA file where the switch is sending
AMA. Repeat this command after enough time has passed and note that the number of
block in the file are getting larger. If the alarms stay clear, the procedure is complete. If the
alarm returns, contact your next level of support.
Index Corruption Recovery Procedure
This procedure describes a methodology for recognizing and recovering from
index file corruption which may be experienced with the BMC system. Index
file corruption can occur for a variety of reasons. This procedure neither
catalogs nor explains all those reasons; rather, it offers practical advice for
identifying and correcting certain types of index file corruption should it
occur. For each type of index file corruption discussed, the procedure to
recognize it is first given, followed by the appropriate recovery procedure.
This follows the natural flow of troubleshooting. Commands and responses
BMC II BISYNC Operation, Administration, and Maintenance Guide BMCB001 and up
Section 060-INDP-610 Maintenance Procedures Guide 6-57
(Sheet 2 of 2)