256-MB Cache Upgrade for the MSA 1000, SA-Cluster Storage, AND SA-5300 Series Controllers Installation Overview

MSA 1000, SA-Cluster Storage

IMPORTANT: You may need to power your system down before installing the new cache

module, depending on the system configuration.

If your system has only one controller, power the system down before starting the

replacement sequence.

If your system has two controllers, the action that you must take depends on the size of

the existing cache module:

— When replacing a cache module with another of the same capacity, you do not need

to power down the system.

— When replacing a cache module with one of different capacity, power the system

down before starting the replacement sequence. In this case, you must also replace

the cache modules on both controllers. The cache modules on the two controllers

must have identical capacities.

1. Remove the controller unit from the storage enclosure (see Figure 1).

(a) Press the lever on the lower left corner of the unit . The latch will

spring out, freeing the unit.

(b) Pull the unit out of the storage enclosure .

2. Open the unit to get access to the DIMM connectors (see Figure 2).

(a) Rest the front of the unit on a firm, level surface.

(b) Holding the rear of the unit in both hands, pull the hooks on both

sides of the rear away from the bottom of the unit .