When running the Data ONTAP DSM for Windows MPIO, you should verify any FC path configurations that are using Active/Non-optimized paths to the LUNs during routine operations.
Data ONTAP DSM supports ALUA and the appropriate path will be selected based on the ALUA state for the default load balance policy (Dynamic Least Queue Depth) and other Active/Active load balance policies. The default load balance policy should be used.