Btrfs For Linux 3.19 Has Improved RAID 5/6 Support
Written by Michael Larabel in Linux Storage on 12 December 2014 at 02:32 PM EST. Add A Comment
LINUX STORAGE --
Btrfs maintainer and Facebook employee Chris Mason sent in his Btrfs file-system updates for the Linux 3.19 merge window.

The most notable changes for Btrfs in Linux 3.19 include bettering off the RAID 5 and RAID 6 level support so that it's closer to parity with the other supported RAID levels. Thanks to work done by Fujitsu, the scrubbing and drive replacement code is now in place for the Btrfs native RAID 5/6 code-paths with Linux 3.19.

The Btrfs changes for 3.19 also include many bug fixes -- including a corruption issue caused after a creash or in error conditions.

More details via this pull request. For those that missed it, back in October I ran Btrfs RAID 0/1/5/6/10 SSD benchmarks and followed up with Linux solid-state drive benchmarks of RAID benchmarks of Btrfs/EXT4/XFS/F2FS.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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