Silicon Graphics InfiniteStorage 4000 Series System Upgrade Manual page 51

Chapter 2: Upgrading Trays in the Storage Array
9. Remove both controller canisters from the controller-drive tray as shown in the
following figure.
a. Unlock and pull out the release levers to release the controller canisters.
b. Using the release levers and your hands, pull both controller canisters out of
the controller-drive tray.
c. Set each controller canister on a flat, static-free surface near the
controller-drive tray. Position the controller canister so that you can access
the top cover.
NOTE The following figure shows controller A being removed. You remove
controller B in the same way.
Figure 28 Removing a Controller Canister
10. Prepare the controller air blocker by removing it from its packaging and folding it
inward at right angles so it is ready to insert into the open controller slot.
1. Release Levers
2. Controller Canister
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