ZFS and Btrfs are doing a fairly good job, but have legal and
practical issues on their own. I wonder how cluster file systems like
Ceph do in this regard. After all, there is an old saying, you know
-you have a distributed system when the crash of a compyter you have
+you have a distributed system when the crash of a computer you have
never heard of stops you from getting any work done. The same holds
true if fault tolerance do not work.</p>