controller shelf.
Steps
1. Label each cable that is attached to the controller canister.
2. Disconnect all the cables from the controller canister.
To prevent degraded performance, do not twist, fold, pinch, or step on the cables.
3. If the HIC ports use SFP+ transceivers, remove them.
Depending on what type of HIC you are upgrading to, you might be able to reuse these SFPs.
4. Confirm that the Cache Active LED on the back of the controller is off.
The green Cache Active LED on the back of the controller is on when cached data needs to be written to
the drives. You must wait for this LED to turn off before removing the controller canister.
(1) Cache Active LED
5. Squeeze the latch on the cam handle until it releases, and then open the cam handle to the right to release
the controller canister from the shelf.
The following figure is an example of an E2812 controller shelf, E2824 controller shelf, or EF280 flash
array:
15
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