Red Hat will stop supporting Btrfs
The Btrfs file system has been in Technology Preview state since the initial release of Red Hat Enterprise Linux 6. Red Hat will not be moving Btrfs to a fully supported feature and it will be removed in a future major release of Red Hat Enterprise Linux.
The Btrfs file system did receive numerous updates from the upstream in Red Hat Enterprise Linux 7.4 and will remain available in the Red Hat Enterprise Linux 7 series. However, this is the last planned update to this feature.
Red Hat will continue to invest in future technologies to address the use cases of our customers, specifically those related to snapshots, compression, NVRAM, and ease of use. We encourage feedback through your Red Hat representative on features and requirements you have for file systems and storage technology.
An announcement that does not clarify the reasons for this decision, but anticipates that Red Hat will continue to work on a similar solution. Perhaps by enhancing its default XFS file system and incorporating Permabit technology (a recently acquired company specialized in deduplication and data compression), perhaps collaborating on the development of new CoW (Copy on Write) file systems such as Bcachefs.
In any case, RHEL 7.4 will be the last edition to support Btrfs, a project that began to be developed in 2007 under the umbrella of Oracle, trying to respond to some shortcomings of current Linux file systems.
Among the current companies contributing to the Btrfs project are: Facebook, Fujitsu, Fusion-IO, Intel, Linux Foundation, Netgear, SUSE, Oracle, STRATO AG and Red Hat itself.
In recent times has tried to position itself as a competitor to ZFS in terms of scalability and ease of use. A ZFS that your move to Linux for licensing issues is always conflicting.
Among the advanced features of Btrfs is the ability to create snapshots that under the “Copy on Write” principle allow you to revert any changes made after an upgrade or integration with RAID (with your corruption problems in RAID 5 / 6 also, everything must be said).
These are features that many users -especially on the desktop- do not use, so most distros choose the always reliable ext4 or the mentioned XFS, which offers excellent performance when handling large files.
Of the GNU / Linux distributions are possibly openSUSE and SLES the ones that bet most by Btrfs, to the point of making it their default file system.