HP Smart Array Cluster Storage System

Hardware Options Installation

HP Smart Array Cluster Storage System User Guide 3-11

HP CONFIDENTIAL

Writer: Rob Weaver File Name: d-ch3 Hardware Options Installation

Codename: Aurora Part Number: 240333-003 Last Saved On: 11/6/02 1:04 PM

Cache Upgrade Option

The controller ships with a 128-MB battery-backed cache module. A 256-MB

battery-backed cache module is available as an option. Before installing a cache

upgrade, observe the following guidelines:

• Always power down the system before performing a cache upgrade.

• If a controller has more than one cache DIMM, be sure that both DIMMs have

the same memory capacity.

• Always upgrade the cache in both controllers in a system with redundant

controllers.

• In a system with a redundant controller, be sure that both controllers have the

same number of DIMMs and that all DIMMs have the same memory capacity.

To upgrade the cache:

1. Power down the system. Refer to “System Power Down” in this chapter.

2. Remove the controller.