3–14
HSG80 Array Controller V8.7 Maintenance and Service Guide
Replacement Procedures for BA370 Enclosure Elements
Figure 3–7: Dual-redundant controller configuration in a BA370 enclosure
The following sections provide procedures for:
•
Replacing both the controller and cache module
•
Replacing only a controller
•
Replacing only a cache module
IMPORTANT: Note the following provisions before starting the dual redundant controller
configuration replacement procedures:
•
The replacement controller hardware must be compatible with the remaining controller
hardware. Refer to the product-specific release notes that accompanied the software
release for information regarding hardware compatibility.
•
The software versions and patch levels must be the same on both controllers.
•
The replacement cache module must contain the same cache memory configuration as the
module being replaced.
Replacing a Controller and Cache Module in a Dual-Redundant
Controller Configuration
To replace a controller and supporting cache module in a dual-redundant controller
configuration, follow the instructions in this section for removing and installing a
controller and cache module.
1
EMU
2
Controller A
3
Controller B
4
Cache module A
5
Fiber optic cables with extender clips
6
Cache module B
7
PVA module
CXO6990A
5
1
3
4
6
7
2