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

Replacing BA370, M2100 & M2200 Enclosure Elements
139HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
Removing cache modules in dual-redundant controller configurations
Perform the following steps to remove HSG60 and HSG80 cache modules in
dual-redundant controller configurations:
 1. For the controller associated with the cache module to be replaced,
complete the following substeps:
 a. Connect a PC or terminal to the maintenance port.
 b. Run VTDPY by entering the following command:
RUN VTDPY
 c. Record which units have I/O activity.
 d. Exit VTDPY by pressing Ctrl+Y.
Note: In Transparent Failover mode, units that failed over due to a RESTART
command revert back to preferred controller after about 1 minute. The next step may
not show that the units have failed over.
 e. Restart the controller by entering the following command:
RESTART THIS_CONTROLLER
 f. Disconnect the PC or terminal from the maintenance port of the
controller having its cache module replaced.
 2. For the operational controller, complete the following substeps:
 a. Connect the PC or terminal to the maintenance port of the operational
controller.
Note: The controller connected to the PC or terminal becomes “this controller.” The
controller for the cache module being removed becomes the “other controller.”