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SubjectRe: O_DIRECT to md raid 6 is slow
On Wed, 15 Aug 2012 18:50:44 -0500
Stan Hoeppner <stan@hardwarefreak.com> wrote:

> TTBOMK there are two, and only two, COW filesystems in existence: ZFS and BTRFS.

There is also NILFS2: http://www.nilfs.org/en/
And in general, any https://en.wikipedia.org/wiki/Log-structured_file_system
is COW by design, but afaik of those only NILFS is also in the mainline Linux
kernel AND is not aimed just for some niche like flash-based devices, but for
general-purpose usage.

--
With respect,
Roman

~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Stallman had a printer,
with code he could not see.
So he began to tinker,
and set the software free."
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