Specifications

2–10 Compaq StorageWorks HSG80 Array Controller ACS Version 8.5 Maintenance and Service Guide
Replacing Controller and Cache Modules in
a Single-Controller Configuration
Follow the instructions in this section to replace modules in a single-controller
configuration (see Figure 2–6). To upgrade a single-controller configuration to a
dual-redundant controller configuration, see Chapter 3.
Figure 2–6. Single-controller configuration
The following sections contain procedures that replace both the controller and cache
module, replace only the controller, and replace only the cache module.
CAUTION: In a single-controller configuration, shut down the subsystem before
removing or replacing any modules. Otherwise, data loss might occur.
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.
NOTE: For single-controller configurations, the only supported controller and cache module
bays are Controller A and Cache A. DO NOT use Controller B and Cache B bays instead of
Controller A and Cache A bays.
EMU
Controller
Fibre channel
optical cable
with extender
clip
Cache module
PVA module
CXO7072A
5
2
1
4
3