NFS vs ISCSI | Proxmox Support Forum
forum.proxmox.com › threads › nfs-vs-iscsiMay 08, 2012 · The question is rather if you want to be able to use the LVM group functions within proxmox then you need to go with ISCSI (to have proxmox do online backup of your VM's). But then again ZFS has the snapshot functionality in the file system so you could simply go with NFS and let Nexenta take care of the snapshots/backup of VM's.