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The advanced Butter/Better/B-tree Filesystem, Btrfs, is still labeled as experimental in the Btrfs Wiki and on Oracle's Btrfs page though the Oracle page looks outdated. Btrfs is an advanced copy-on-write filesystem with a lot of great capabilities: snapshotting and rollbacks, checksumming of data and metadata, RAID, volumes and subvolumes, online defragmentation, compression, and online filesystem check and repair. Snapshots are always interesting to me; they're not backups, but a fast way to restore a system to a previous state. With Btrfs users can manage their own snapshots in their home directories. Btrfs supports filesystems up to 16 EiB in size, and files up to 16 EiB as well. (Which may be almost enough to store all the cute kitten photos on the Internet.) Most distros include Btrfs, and Btrfs has been included in mainline Linux kernels since the 2.6.29 kernel. To use it just install the user-space tools. So what's the story, is it ready for prime time or not? |
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https://btrfs.wiki.kernel.org/index.php/Main_Page