HP StorageWorks Replacing an HSG60 or HSG80 Array Controller Installation Instructions (EK-80CTL-IM. F01, March 2005)

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Caution: Failure to clear an invalid cache message
(especially a Cache is FAILED message) in substep 4c
before setting the Failover mode can result in a recursive
bugcheck condition that renders the controller unusable.
H d. Disconnect the PC or terminal from the
maintenance port of the replacement controller.
 5. For the operational controller, complete the
following substeps:
 a. Connect a PC or terminal to the maintenance
port of the operational controller.
Caution: In substep 5b below, entering the appropriate
SET command is critical. Enabling an incorrect Failover
mode can cause loss of data and incur system down time.
 b. Restore the Failover mode and re-establish the
dual-redundant controller configuration with the
following command. For example, if you noted
that the Failover mode in substep 2c on page 5
was Multibus, enter the second command below.
SET FAILOVER
COPY=THIS_CONTROLLER
The above commands copy the subsystem
configuration from the operational controller to
the controller that failed or is being replaced.
 c. Verify that the replacement controller restarts
and that the cache for both the operational and
replacement controller is good by entering the
following command:
SHOW THIS_CONTROLLER
SHOW OTHER_CONTROLLER
If the cache is not good, refer to Table 14
through Table 16 in the “Controller and Cache
Replacement Troubleshooting” appendix of the
HP StorageWorks HSG60 and HSG80 Array
Controller and Array Controller Software
Maintenance and Service Guide.
Note: The replacement controller can fail with a recursive bugcheck
(halting with OCP code 25), and the Reset button LED remains
steady on. Contact HP technical support or replace the controller if
this condition occurs.
 6. Disconnect the PC or terminal from the controller
maintenance port of the operational controller.
H 7. Connect the host bus cables to the replacement
controller.
H 8. Install the program card ESD cover on the controller
being replaced.