Merge pull request #3255 from bazz2/master

[translated by bazz2]Linux about to gain a new file system--bcachefs

sources/talk/20150824 Linux about to gain a new file system--bcachefs.md

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-[bazz2222222]
-Linux about to gain a new file system – bcachefs
-================================================================================
-A five year old file system built by Kent Overstreet, formerly of Google, is near feature complete with all critical components in place. Bcachefs boasts the performance and reliability of the widespread ext4 and xfs as well as the feature list similar to that of btrfs and zfs. Notable features include checksumming, compression, multiple devices, caching and eventually snapshots and other “nifty” features.
-
-Bcachefs started out as **bcache** which was a block caching layer, the evolution from bcache to a fully featured [copy-on-write][1] file system has been described as a metamorphosis.
-
-Responding to the self-imposed question “Yet another new filesystem? Why?” Kent Overstreet replies with the following “Well, years ago (going back to when I was still at Google), I and the other people working on bcache realized that what we were working on was, almost by accident, a good chunk of the functionality of a full blown filesystem – and there was a really clean and elegant design to be had there if we took it and ran with it. And a fast one – the main goal of bcachefs to match ext4 and xfs on performance and reliability, but with the features of btrfs/xfs.”
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-Overstreet has invited people to use and test bcachefs out on their own systems. To find instructions to use bcachefs on your system check out the mailing list [announcement][2].
-
-The file system situation on Linux is a fairly drawn out one, Fedora 16 for instance aimed to use btrfs instead of ext4 as the default file system, this switch still has not happened. Currently all of the Debian based distros, including Ubuntu, Mint and elementary OS, still use ext4 as their default file systems and none have even whispered about switching to a new default file system yet.
-
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-
-via: http://www.linuxveda.com/2015/08/22/linux-gain-new-file-system-bcachefs/
-
-作者：[Paul Hill][a]
-译者：[译者ID](https://github.com/译者ID)
-校对：[校对者ID](https://github.com/校对者ID)
-
-本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](https://linux.cn/) 荣誉推出
-
-[a]:http://www.linuxveda.com/author/paul_hill/
-[1]:https://en.wikipedia.org/wiki/Copy-on-write
-[2]:https://lkml.org/lkml/2015/8/21/22

translated/talk/20150824 Linux about to gain a new file system--bcachefs.md

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+Linux 界将出现一个新的文件系统：bcachefs
+================================================================================
+这个有 5 年历史，由 Kent Oberstreet 创建，过去属于谷歌的文件系统，最近完成了关键的组件。Bcachefs 文件系统自称其性能和稳定性与 ext4 和 xfs 相同，而其他方面的功能又可以与 btrfs 和 zfs 相媲美。主要特性包括校验、压缩、多设备支持、缓存、快照与其他好用的特性。
+
+Bcachefs 来自 **bcache**，这是一个块级缓存层，从 bcaceh 到一个功能完整的[写时复制][1]文件系统，堪称是一项质的转变。
+
+在自己提出问题“为什么要出一个新的文件系统”中，Kent Oberstreet 作了以下回答：当我还在谷歌的时候，我与其他在 bcache 上工作的同事在偶然的情况下意识到我们正在使用的东西可以成为一个成熟文件系统的功能块，我们可以用 bcache 创建一个拥有干净而优雅设计的文件系统，而最重要的一点是，bcachefs 的主要目的就是在性能和稳定性上能与 ext4 和 xfs 匹敌，同时拥有 btrfs 和 zfs 的特性。
+
+Overstreet 邀请人们在自己的系统上测试 bcachefs，可以通过邮件列表[通告]获取 bcachefs 的操作指南。
+
+Linux 生态系统中文件系统几乎处于一家独大状态，Fedora 在第 16 版的时候就想用 btrfs 换掉 ext4 作为其默认文件系统，但是到现在（LCTT：都出到 Fedora 22 了）还在使用 ext4。而几乎所有 Debian 系的发行版（Ubuntu、Mint、elementary OS 等）也使用 ext4 作为默认文件系统，并且这些主流的发生版都没有替换默认文件系统的意思。
+
+--------------------------------------------------------------------------------
+
+via: http://www.linuxveda.com/2015/08/22/linux-gain-new-file-system-bcachefs/
+
+作者：[Paul Hill][a]
+译者：[bazz2](https://github.com/bazz2)
+校对：[校对者ID](https://github.com/校对者ID)
+
+本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](https://linux.cn/) 荣誉推出
+
+[a]:http://www.linuxveda.com/author/paul_hill/
+[1]:https://en.wikipedia.org/wiki/Copy-on-write
+[2]:https://lkml.org/lkml/2015/8/21/22