projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 5d43e1bc MCC |
1 | .. SPDX-License-Identifier: GPL-2.0 |
| 2 | ||
| 3 | ===== | |
| c854a990 ES |
4 | BTRFS |
| 5 | ===== | |
| 709ac06a | 6 | |
| 6788f5ca DS |
7 | Btrfs is a copy on write filesystem for Linux aimed at implementing advanced |
| 8 | features while focusing on fault tolerance, repair and easy administration. | |
| 9 | Jointly developed by several companies, licensed under the GPL and open for | |
| 10 | contribution from anyone. | |
| 709ac06a DW |
11 | |
| 12 | The main Btrfs features include: | |
| 13 | ||
| 14 | * Extent based file storage (2^64 max file size) | |
| 15 | * Space efficient packing of small files | |
| 16 | * Space efficient indexed directories | |
| 17 | * Dynamic inode allocation | |
| 18 | * Writable snapshots | |
| 19 | * Subvolumes (separate internal filesystem roots) | |
| 20 | * Object level mirroring and striping | |
| 21 | * Checksums on data and metadata (multiple algorithms available) | |
| 22 | * Compression | |
| 23 | * Integrated multiple device support, with several raid algorithms | |
| 6788f5ca DS |
24 | * Offline filesystem check |
| 25 | * Efficient incremental backup and FS mirroring | |
| 709ac06a DW |
26 | * Online filesystem defragmentation |
| 27 | ||
| 6788f5ca | 28 | For more information please refer to the wiki |
| 709ac06a | 29 | |
| 6788f5ca | 30 | https://btrfs.wiki.kernel.org |
| 709ac06a | 31 | |
| 6788f5ca DS |
32 | that maintains information about administration tasks, frequently asked |
| 33 | questions, use cases, mount options, comprehensible changelogs, features, | |
| 34 | manual pages, source code repositories, contacts etc. |