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

Troubleshooting
52 HP StorageWorks HSG60 and HSG80 Controller and HSx80 Cache Module Replacement
Procedures for Array Controller Software V8.7x-x Release Notes
Resolving Failed Cache Error Messages
Caution: Failure to clear an invalid cache message (especially a “Cache is
FAILED” message)
before setting the Failover mode can result in a recursive
bugcheck error message that renders the controller unusable.
An invalid mirrored cache error message may be displayed after one of the two
following events:
Event 1: After Setting the Failover Mode
After the Failover mode has been set and after the replacement controller restarts,
the replacement controller CLI message indicates that its cache module is invalid.
Table 3: Resolving an Invalid Cache - Serial Number Mismatch Error Message
Description/Instruction
Message
INVALID CACHE - Cache should be installed in controller serial
number xyz
%CER-HSG> This controller ( replacement ) has an invalid cache
module
%CER-HSG> cache modules inconsistent with mirror mode
Resolution 1. Submit the following command from the controller reporting the error message:
CLEAR THIS_CONTROLLER ( replacement ) INVALID_CACHE
DESTROY_UNFLUSHED_DATA
Note: Enter this command again if this condition is not cleared.
2. Set the controller Failover mode by performing one of the following options:
■ Proceed to substep 9b on page 50 in the “Installing an HSx80 Cache Module
in Dual-Redundant Controller Configurations” section if the error message
occurred during the cache module installation process.
■ Proceed to substep 8b on page 32 in the “Installing an HSG60 or HSG80
Controller in Dual-Redundant Controller Configurations” section if the error
message occurred during the controller installation process.