I have just put my Helios64 into operation. I have 5 HDD with 10TB each. Three HDD I mounted with ZFS (0.86) to a raidz1. the other two disks I mounted individually, formatting one disk with XFS and the last disk already had NTFS as filesystem. On this disk (NTFS) I have some very large *.vhdx files which I only use for copy tests. I use the console with the Mitnight Commander for this.   The copying from the NTFS disk to the XFS disk reached a speed of about 130 MB/s. Copyin