HSG60 and HSG80 Controller and HSx80 Cache Module Replacement Procedures for Array Controller Software V8.7x-x Release Notes

Troubleshooting
55HP StorageWorks HSG60 and HSG80 Controller and HSx80 Cache Module Replacement
Procedures for Array Controller Software V8.7x-x Release Notes
Resolution
(Cont’d)
Caution: In step 8, you must break up mirrored cache. Before completing this
step, note that breaking up mirrored cache configurations loses persistent
reservation conditions on the units in these controllers. Before proceeding with
this procedure, inform customers and your manager that you are about to
break the mirror cache configuration.
8. Break the controller pair mirrored cache configuration by entering the following
command:
SET THIS_CONTROLLER NOMIRRORED
Both controllers restart.
9. Check cache status of both controllers by entering the following commands:
SHOW THIS_CONTROLLER
SHOW OTHER_CONTROLLER
10. If the cache is good, complete the following substeps. Otherwise, proceed to step
11.
a. Set the controllers into Mirrored Cache mode by entering the following
command:
SET THIS_CONTROLLER MIRRORED
Both controllers restart.
b. Verify whether the controller configuration is mirrored and whether both cache
and mirrored cache are good (“Cache is GOOD”).
c. If the cache is good, return the controller pair to service. Resolution to the
failed cache condition is complete. If cache has failed, proceed to step 11.
11. If cache has failed (“Cache is FAILED”), attempt to clear the invalid cache
condition by entering the following command:
CLEAR_ERROR THIS_CONTROLLER INVALID_CACHE
DESTROY_UNFLUSHED_DATA
If the attempt to clear the failed cache is unsuccessful, a failed cache module is
installed, or the DIMMs failed. Refer to the
HP StorageWorks Array Controller
V8.7 Troubleshooting Guide
, or contact HP technical support for additional help.
Table 4: Resolving a Failed Cache Error Message (Event 1) (Continued)
Details