Here are your option with kenfcamp's comment in mind.
The allocated space accessible via iscsi then the SINGLE system that mounts it will function as the arbitrator and share the resource. Should this system breaks, all that will be needed is for another system to map iscsi and start the DB monitor, and share the resource.rescan will update the ND files to reflect access on new host.
The allocated space accessible via iscsi then the SINGLE system that mounts it will function as the arbitrator and share the resource. Should this system breaks, all that will be needed is for another system to map iscsi and start the DB monitor, and share the resource.rescan will update the ND files to reflect access on new host.