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
107HP StorageWorks HSG60 and HSG80 Array Controller and Array Controller Software
Maintenance and Service Guide
Replacing array controllers and cache modules
The following subsections provide information on the following:
■ Special considerations and prerequisites, page 107
■ Replacing array controllers in a single-controller configurations, page 112
■ Replacing array controllers in dual-redundant configurations, page 119
■ Replacing cache modules in single-controller configurations, page 132
Special considerations and prerequisites
The following special considerations and prerequisites are covered in this section.
■ Replacement controller configuration and cache module prerequisites,
page 107
■ Special considerations for replacing array controllers in DRM configurations,
page 108
■ Replacing a controller with an unknown status, page 110
■ Replacing a controller with a known status, page 112
Caution: Before you replace an array controller or cache module, review the
special considerations and prerequisites in this section before beginning the
replacement process. Failure to fully review and follow applicable instructions
can result in damage to your equipment.
Replacement controller configuration and cache module prerequisites
Note the following prerequisites before starting replacement procedures:
■ Hardware Compatibility—The replacement controller hardware must be
compatible with the remaining controller hardware. Refer to product-specific
release notes and documentation for information regarding hardware
compatibility. Refer also to the HP storage website at:
http://h18006 .www1.hp .com/products/storag e w o rks/acs/index.html .
■ Software Compatibility—The software versions and patch levels of the
replacement controller must be the same as that of the operational controller
or the controller being replaced.