Btrfs RAID Testing Begins With Linux 4.0

Written by Michael Larabel in Hardware on 30 April 2015 at 12:11 PM EDT. 11 Comments
With Btrfs recently landing RAID 5/6 improvements and other enhancements, I've been working on some fresh Btrfs RAID benchmarks using the Linux 4.0 kernel.

This time around I'm doing the Btrfs RAID benchmarks on four traditional HDDs (though separately also been working on Linux RAID tests on a 6 SAS drive server). For this testing I picked up for WD Green 1TB 3.5-inch, SATA 6Gb/s, 64MB Cache WD10EZRX drives. At Amazon they cost only $52 USD a piece and should be interesting to test in a four-disk RAID array.

Before the end of the month I didn't have the time yet to do the four-disk RAID 0/1/5/6 benchmarks on Btrfs with Linux 4.0, but thus far have done the RAID 0/1 tests on two disks. If you're curious about seeing those dual disk results of Btrfs RAID on Linux 4.0, I've uploaded the initial data to
Btrfs Disk Tests 4.0

Head on over to this result file if you want a preview of these numbers of Btrfs on a single Western Digital HDD, then using two of the drives in RAID 0 and RAID 1. Stay tuned for the four-disk RAID results in the days ahead.

If you missed it last year, you might be interested in the older results of four SSD tests of Btrfs RAID 0/1/5/6/10 and Linux RAID tests of many file-systems.
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Michael Larabel

Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 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 automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

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