I´m using Unraid as an datastore for VM´s, first i was sharing nativly from unraid (nfsv3) to vmware. That was an unstable mess with more or less all machines locked up each day. Now i have installed erichough/nfs-server in an docker and share my shares from that docker over nfsv3 to vmware. This works better, but still sometimes it will lock up my vm´s.
I came from an Synology station where i shared over nfsv3, never had a problem.
I really do hope NFS v4 will be available soon, or is iSCSI the only way forward? The biggest problem with iSCSI as i understand, is that i cant make an iSCSI LUN larger at an later time?