HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software Maintenance and Service Guide (EK-G80MS-SA. C01, March 2005)

Controller and Cache Replacement Troubleshooting
258 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
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 status 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 the cache failed, proceed to step 11.
11. If the cache 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 HSG60 and HSG80
Array Controller and Array Controller Software Troubleshooting Guide
, or
contact HP technical support for additional help.
Table 15: Resolving a failed cache error message (event 1) (continued)
Details