deis/deis — pull request #2516 by aledbf (2014-11-15 14:12:34+00:00)
Title: feat(database): disable copy on write to improve performance

https://coreos.com/docs/cluster-management/debugging/btrfs-troubleshooting/#disable-copy-on-write

Is not possible to use NOCOW on existing files that's why this only can be done after the first boot in an empty directory.