@Natanox I'm a lazy guy, so on my desktop machine I'm using Ubuntu with ext4 (and LUKS). I also switched from my own Linux server to off-the-shelf NAS a long time ago. On the different devices I had since then Netgear (ReadyNAS) and Synology (DS920+) were using btrfs. Western Digital (PR4100) used ext4 (I think Synology also offered this as option). No device supported zfs.