The other consideration is around the backups and their processes. If the server is physical then you’d be better with NAS for the instant file share recovery as you won’t be able to instant VM/Disk back to source you’d have to attach it to a virtual resource or await all the files to be restored. So you’ve just got to consider that file shares are licensed per 500GB (rounded down to the nearest 500GB).įunctionality-wise your differences are that agent-based backups support instant VM/Disk recovery if it’s a VM, and NAS backups support instant file share recovery.