Before you begin
• Check the NetApp Hardware Universe to make sure that the new I/O module is compatible with your
storage system and version of ONTAP you’re running.
• If multiple slots are available, check the slot priorities in NetApp Hardware Universe and use the best one
available for your I/O module.
• Make sure that all other components are functioning properly.
Option 1: Add an I/O module to a storage system with empty slots
You can add an I/O module into an empty module slot in your storage system.
Step 1: Shut down the impaired controller module
Shut down or take over the impaired controller module using one of the following options.
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