It will be the node where the HAStoragePlus resource is online.
# clresource show hasp-rs-managing-pool
=== Cluster Resources ===
Resource Name Node Name Status Message
-------------- ---------- ------- --------
hasp-rs-managing-pool phys-node-1 Offline Offline
phys-node-2 Online Online
phys-node-2# zpool list zfs-pool-name