File System Design Goals and History
Created by Chris Mason
at Oracle, the initial design for Btrfs has its roots in a presentation by Ohad Rodeh about copy-on-write friendly B-tree implementations at the USENIX FAST '07 conference. Mason based the Btrfs design on his experience developing the ReiserFS file system (extent-based storage, packing of small files) and the idea to store data and metadata in B-tree structures. After several months of internal development, Btrfs was presented to the Linux community in June 2007. Since then, Oracle engineers have continued to maintain and advance its development. They work in close collaboration with many contributors from the Linux community, including engineers from Linux distributors, such as Red Hat and SUSE, and other companies, such as Dreamhost, Fujitsu, HP, IBM, and Intel
. Today, Btrfs is included in the mainline Linux kernel and is gaining popularity through several Linux distributions, including Oracle Linux.