Owners Manual

3–1
3 Maintaining Control Modules
A PS3000 Series array includes one or two hot-swappable control modules. Each
control module includes a field-replaceable compact flash card (running PS Series
firmware), in addition to cache and NVRAM batteries. For information about
replacing a cache or NVRAM battery, contact your PS Series service provider.
Control module maintenance topics include:
• Supported Control Modules on page 3-1
• Control Module Handling Requirements on page 3-3
• Identifying Control Module Failures on page 3-3
• Understanding Failover Behavior on page 3-3
• Maintaining Control Module Firmware on page 3-4
• Connecting Network Cables on page 3-5
• Removing a Control Module on page 3-7
• Installing a Control Module on page 3-9
• Replacing the Compact Flash Card on page 3-11
Supported Control Modules
At the time of this release, PS3000 arrays support both Type 3 and Type 4 control
modules, which are functionally equivalent and distinguished only by color.
Always check the latest Release Notes for information about additional supported
control modules.
This manual shows arrays with Type 4 control modules (gray), but the information
also applies to arrays with Type 3 control modules (blue). However, do not mix
control module types in an array.
Figure 3-1: Type 3 Control Module (Blue)
Figure 3-2: Type 4 Control Module (Gray)