Silicon Graphics InfiniteStorage 4000 Series System Upgrade Manual page 41

Upgrading the Cache
Memory DIMM in the
E2600 Controller-Drive
Trays
Chapter 2: Upgrading Trays in the Storage Array
Figure 20 Controller Cover and Internal Parts
13. Remove the top cover from both controller canisters.
14. Go to "Upgrading the Cache Memory DIMM in the E2600 Controller-Drive
Trays" on page 33.
If you are upgrading the cache memory DIMM in one controller canister, you must
increase the capacity of the cache memory DIMM in the other controller canister in
the E2600 controller-drive tray. You also must increase the capacity of the cache
backup memory devices in both controller canisters.
1. Locate the cache memory DIMM shown in the following figure.
1. Top Cover Latch Buttons
33