[noahdesu]

CephFS (which is a distributed file system) is orthogonal to XFS or BTRFS which are local file systems. Since Gluster is providing a file system solution at this point, that may be the reason for the de-emphasis. However, Gluster is not a parallel file system, and Ceph is much better suited to fill that role. So I suspect CephFS will continue to be developed, if anything to compete against Lustre, PanFS, GPFS, etc..

[jbellis]

Why do you say that GlusterFS is not a parallel file system? Certainly it is by the common definition of "file system that spreads data across multiple storage nodes."

[nwmcsween]

Many CephFS features are directly tied to BTRFS features.