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
126 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
 6. For the operational controller, complete the following substeps:
 a. Observe that after the “other controller” is removed that FRUTIL
restarts all device ports and asks if a replacement controller is
available.
 b. Enter N(o) after FRUTIL asks you if a replacement controller is
available, and then disconnect the PC or terminal from the controller
maintenance port. FRUTIL exits. If you have a replacement controller
available, complete the instructions in the “Installing array controllers
in dual-redundant controller configurations” section.
Caution: If reverting to a single-controller configuration, fill the vacant
controller bay with a blank bezel to prevent the enclosure from developing an
over-temperature condition.
Installing array controllers in dual-redundant controller configurations
Caution: Ensure that the controller being installed has the same ACS version
as the operational and previous controller. Failure to follow this precaution
causes controller configuration information to be erased, and the controller to
be rendered unusable.
 1. For the operational controller, complete the following substeps:
 a. Connect a PC or terminal to the maintenance port of the operational
controller if not already connected.
Note: The controller connected to the PC or terminal becomes “this controller.” The
controller being removed becomes the “other controller.”
 b. Ensure that the controller configuration is customized to your needs,
and then record the controller configurations (for example, Failover
mode, cache status, serial numbers, SCSI mode, mirrored or
nonmirrored information, and so forth).