44 lines
1.5 KiB
ReStructuredText
44 lines
1.5 KiB
ReStructuredText
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.. SPDX-License-Identifier: GPL-2.0
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=====
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BTRFS
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=====
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Btrfs is a copy on write filesystem for Linux aimed at implementing advanced
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features while focusing on fault tolerance, repair and easy administration.
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Jointly developed by several companies, licensed under the GPL and open for
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contribution from anyone.
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The main Btrfs features include:
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* Extent based file storage (2^64 max file size)
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* Space efficient packing of small files
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* Space efficient indexed directories
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* Dynamic inode allocation
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* Writable snapshots
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* Subvolumes (separate internal filesystem roots)
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* Object level mirroring and striping
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* Checksums on data and metadata (multiple algorithms available)
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* Compression (multiple algorithms available)
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* Reflink, deduplication
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* Scrub (on-line checksum verification)
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* Hierarchical quota groups (subvolume and snapshot support)
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* Integrated multiple device support, with several raid algorithms
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* Offline filesystem check
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* Efficient incremental backup and FS mirroring (send/receive)
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* Trim/discard
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* Online filesystem defragmentation
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* Swapfile support
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* Zoned mode
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* Read/write metadata verification
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* Online resize (shrink, grow)
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For more information please refer to the documentation site or wiki
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https://btrfs.readthedocs.io
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that maintains information about administration tasks, frequently asked
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questions, use cases, mount options, comprehensible changelogs, features,
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manual pages, source code repositories, contacts etc.
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