Documentation/filesystems/btrfs.txt

   1 BTRFS
   2 =====
   3
   4 Btrfs is a copy on write filesystem for Linux aimed at implementing advanced
   5 features while focusing on fault tolerance, repair and easy administration.
   6 Jointly developed by several companies, licensed under the GPL and open for
   7 contribution from anyone.
   8
   9 The main Btrfs features include:
  10
  11     * Extent based file storage (2^64 max file size)
  12     * Space efficient packing of small files
  13     * Space efficient indexed directories
  14     * Dynamic inode allocation
  15     * Writable snapshots
  16     * Subvolumes (separate internal filesystem roots)
  17     * Object level mirroring and striping
  18     * Checksums on data and metadata (multiple algorithms available)
  19     * Compression
  20     * Integrated multiple device support, with several raid algorithms
  21     * Offline filesystem check
  22     * Efficient incremental backup and FS mirroring
  23     * Online filesystem defragmentation
  24
  25 For more information please refer to the wiki
  26
  27   https://btrfs.wiki.kernel.org
  28
  29 that maintains information about administration tasks, frequently asked
  30 questions, use cases, mount options, comprehensible changelogs, features,
  31 manual pages, source code repositories, contacts etc.