Specifications

Replacement Procedures 2–17
Replacing Controller and Cache Modules in
a Dual-Redundant Controller Configuration
Follow the instructions in this section to replace modules in a dual-redundant controller
configuration (see Figure 2–9).
Figure 2–9. Dual-redundant controller configuration
The following sections provide procedures for:
■ Replacing both the controller and cache module
■ Replacing a controller
■ Replacing a cache module
CAUTION: For Fibre Channel optical cables without extender clips, the use of pliers is
necessary to remove the cable from the controller without potentially damaging the
cable.
EMU
Controller A
Controller B
Cache module A
Fibre channel optical cables with extender
clips
Cache module B
PVA module
CXO6990A
5
1
3
4
6
7
2