When using SAN, it is a Best Practice to place ONE FC LIF from Each Fabric on EACH node.
2 node cluster = 2 LIFs per node = 4 FC LIFS
4 node cluster = 2 LIFs per node = 8 FC LIFS
You then do your single initiator zoning for each host to the NetApp.
Then if you allow the defaults to happen, Selective LUN Mapping (SLM) will advertise the node hosting the LUN and the HA-Partner FC LIFs to clients. If you need to move the LUN, ONTAP will update the advertisement to use the FC LIFs on the destination nodes.
Bottom Line, please place at least TWO FC LIFs (one per Fabric) on each node.