Remove controller canister

You remove the failed controller canister so you can replace it with a new one. Disconnect all the cables then you can slide the controller out of the controller shelf.

1. Put on an ESD wristband or take other antistatic precautions.
2. Label each cable that is attached to the controller canister.
3. Disconnect all the cables from the controller canister.
   Attention: To prevent degraded performance, do not twist, fold, pinch, or step on the cables.
4. If the controller canister has a HIC that uses SFP+ transceivers, remove the SFPs.
   Because you must remove the HIC from the failed controller canister, you must remove any SFPs from the HIC ports. When you reconnect the cables, you can move those SFPs to the new controller canister.
5. Confirm that the Cache Active LED on the back of the controller is off.
6. Squeeze the handles on either side of the controller, and pull back until it releases from the shelf.
   
   
7. Using two hands and the handles, slide the controller canister out of the shelf. When the front of the controller is free of the enclosure, use two hands to pull it out completely.
   Attention: Always use two hands to support the weight of a controller canister.

   
8. Place the controller canister on a flat, static-free surface.