So Resilient File System (ReFS) has been for 6 years so it should be stable for use with a backup drive, right?
“Because ReFS was designed not to fail, if failure does occur, there are no tools provided to repair it”
When it does fail, you might just end up with a 2TB backup drive that you cannot read.
I found one third-party tool which does work, ReclaiMe.
Seems to work well. If I need to pull data off this backup drive, I’ll purchase a license.