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
112 HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
Replacing a controller with a known status
Perform the following procedures if the configuration of the replacement
controller is known:
■ Determine whether the controller to be replaced is a target controller, and then
complete one of the following options:
— If the controller to be replaced is not a target controller, proceed to the
“Replacing array controllers in dual-redundant configurations” which
starts on page 119.
— If the controller to be replaced is a target controller, complete the
following substeps:
a. Halt all I/O on the initiator and target sites of the DRM configuration.
b. Dismount all units associated with the DRM configuration.
c. Disconnect the host port Fibre cables from the controller being
replaced.
d. Remove the controller by completing the instructions in the
“Removing array controllers in dual-redundant controller
configurations” section which starts on page 121.
e. Install the controller by completing the instructions in the “Installing
array controllers in dual-redundant controller configurations” section
which starts on page 126.
Replacing array controllers
The following subsections cover the topics listed below:
■ Replacing array controllers in a single-controller configurations, page 112
■ Replacing array controllers in dual-redundant configurations, page 119
Replacing array controllers in a single-controller configurations
Figure 42 on page 113 and Figure 43 on page 113 provides an illustration of a
single-controller setup for a BA370 enclosure and a Model 2200 enclosure.