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

Replacing HSx80 Cache Modules in Single and Dual-Redundant Controller Configurations
49HP StorageWorks HSG60 and HSG80 Controller and HSx80 Cache Module Replacement
Procedures for Array Controller Software V8.7x-x Release Notes
 7. For the operational controller, complete the following substeps:
 a. Observe that FRUTIL restarts the device ports and then exits.
 b. Identify invalid or failed cache conditions by entering the following
command:
SHOW THIS_CONTROLLER
 c. Clear invalid or failed cache conditions, if any exist. See Table 3 through
Table 5 starting on page 52 for more information on clearing invalid or
failed cache conditions.
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.
 d. Disconnect the PC or terminal from the maintenance port of the
operational controller.
H 8. For the controller associated with the replacement cache module, complete
the following substeps:
H a. Connect a PC or terminal to the maintenance port of the controller
associated with the cache module to be replaced.
H b. Identify any invalid or failed cache conditions, if any exist, by entering
the following command:
SHOW THIS_CONTROLLER
H c. Clear invalid or failed cache conditions, if any exist. See Table 3 through
Table 5 starting on page 52 for more information on clearing invalid or
failed cache conditions.
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.
H d. Disconnect the PC or terminal from the maintenance port of the controller
associated with the replacement cache module.