I have feeling he just means for the data. ZFS doesn't allow two systems to use it at the same time (unless it is shared through NFS or similar) and booting Win

I have feeling he just means for the data. ZFS doesn't allow two systems to use it at the same time (unless it is shared through NFS or similar) and booting Windows from ZFS would be another challenge (I bet much more difficult one). Currently there's no good FS that can work together with Windows and Linux/Unix. I mean the one that works on both would be ExFAT but its age is showing up. I currently found a workaround to have FreeNAS installed on VirtualBox and then share the volume through Samba, it works, but it is hacky. A native solution would be far better.