> For a lot of workloads Ceph's default erasure coding scheme (and Bluestore) would still be a lot more efficient than mirroring a file on top of a regular file

> For a lot of workloads Ceph's default erasure coding scheme (and Bluestore) would still be a lot more efficient than mirroring a file on top of a regular filesystem. Yes that's correct, it's why Bluestore was created in the first place.