You replace a host interface card (HIC) that has failed. If two controllers are present, each controller must have identical HICs.
Steps
Prepare to replace host interface card
The steps to prepare to replace a host interface card (HIC) depend on whether you have a duplex configuration (two controllers) or a simplex configuration (one controller). If you have a duplex configuration, you must take the affected controller offline or, if you have a simplex configuration, you must stop host I/O operations and power down the controller shelf.
Replace host interface card
You replace a host interface card (HIC) to replace the failed HIC with a new one. If you are replacing HICs in a duplex configuration, repeat all steps to remove the second controller canister, install the second HIC, and reinstall the second controller canister.
Complete host interface card replacement
The steps to complete a host interface card replacement depend on whether you have a duplex configuration (two controllers) or a simplex configuration (one controller). If you have a duplex configuration, you place the affected controller online or, if you have a simplex configuration, you apply power to the controller shelf and confirm that all components are working correctly. Then, you can collect support data and resume operations.