RFS-1, a provider for ZFS-HA (good known and experienced with HA-Cluster nexentastor), supports OmniOS and other ZFS derivatives.
Now napp-it can manage the RFS-1 High Availability-Cluster Plugin.
Offical announcement @napp-it website:
napp-it 16.08 pro edition Appliance security supports RSF-1 ports 1195 and 8020 Comstar: create and delete raw LU new main menu HA Cluster with RSF-1 cluster settrings napp-it Pro: Support for RSF-1 Cluster
Link to napp-it changelog