multipath -t

defaults {
       verbosity 2
       polling_interval 0
       dev_loss_tmo 10
       fast_io_fail_tmo 5
}
blacklist {
       devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
       devnode "^hd[a-z]"
       devnode "^dcssblk[0-9]*"
}
blacklist_exceptions {
}
devices {
       device {
               vendor "NETAPP"
               product "LUN.*"
               path_grouping_policy group_by_prio
               features "1 queue_if_no_path"
               prio ontap
               failback immediate
               rr_min_io 128
       }
}
multipaths {
}