I have used btrfs for a low memory footprint raid 0 solution to span drives. Mind you for expendable datasets. It has worked really well, never had failures due

I have used btrfs for a low memory footprint raid 0 solution to span drives. Mind you for expendable datasets. It has worked really well, never had failures due to btrfs shall we say -rot. Filesystem is light on requirements and works really well. Compression works great too. The only thing I haven't played around with are reflinks. For critical datasets I apply 3-2-1 backup strategy and use ZFS.