You prepare to add a second controller by verifying the new controller's part number, installing the same model of host interface card (HIC) in the second controller canister, and collecting support data for your storage array.
Step 2: Install host interface card
Install the same model of HIC in the second controller canister, if the currently installed controller includes a HIC.
Step 3: Collect support data
Collect support data before and after replacing a component to ensure you can send a full set of logs to technical support in case the replacement does not resolve the problem.