You can use this procedure with all versions of ONTAP supported by your system.
All other components in the system must be functioning properly; if not, you must contact technical support.
Shutting down the impaired controller You can shut down or take over the impaired controller using different procedures, depending on the storage system hardware configuration.
Removing the controller module You must remove the controller module from the chassis when you replace a component inside the controller module.
Replacing or installing a mezzanine card To replace a mezzanine card, which is also referred to as a host interface card (HIC), you must remove the impaired card and install the replacement card; to install a mezzanine card, you must remove the face plate and install the new card.
Reinstalling the controller module After you replace a component within the controller module, you must reinstall the controller module in the system chassis and boot it.
Completing the replacement process After you replace the part, you can return the failed part to Lenovo, as described in the RMA instructions shipped with the kit.Contact technical support at Lenovo Data Center Support if you need the RMA number or additional help with the replacement procedure.