Figure 3 shows a simple Ceph ecosystem.

图3显示了一个简单的Ceph生态系统。

Finally, the Ceph Monitor provides cluster management.

最后，Ceph Monitor提供了集群管理。

Ceph USES Paxos, which is a family of algorithms for distributed consensus.

Ceph使用Paxos，它是一系列分布式共识算法。

Now, let's explore the Ceph architecture and its core elements at a high level.

现在，让我们探讨一下Ceph的架构以及高端的核心要素。

One of the latest distributed file systems, which is also supported in Linux, is Ceph.

最新的分布式文件系统之一，在 Linux 中也支持，是 Ceph。

Ceph is not only a file system but an object storage ecosystem with enterprise-class features.

Ceph不只是一个文件系统，还是一个有企业级功能的对象存储生态环境。

Finally, Ceph is open source distributed storage and part of the mainline Linux kernel (2.6.34).

最后，Ceph是开源分布式存储，也是主线Linux内核(2.6.34)的一部分。

Ceph provides similar functionality and, in the past year, was introduced into the Linux kernel.

Ceph提供类似的功能并在去年被引入到Linux内核。

Early versions of Ceph implemented a custom low-level file system on the local storage called EBOFS.

Ceph的早期版本在一个名为ebofs的本地存储器上实现一个自定义低级文件系统。

Users can create snapshots, for example, in Ceph on any subdirectory (including all of the contents).

用户可以创建快照，例如，在Ceph的任何子目录上(包括所有内容)。

Similar to traditional object storage, Ceph storage nodes include not only storage but also intelligence.

和传统的对象存储类似，Ceph 存储节点不仅包括存储，还包括智能。

Although Ceph is now integrated into the mainline Linux kernel, it's properly noted there as experimental.

虽然Ceph现在被集成在主线Linux内核中，但只是标识为实验性的。

I then dig down another level to identify some of the key aspects of Ceph to provide a more detailed exploration.

然后我会拓展到另一层次，说明Ceph中一些关键的方面，提供更详细的探讨。

Ceph isn't unique in the distributed file system space, but it is unique in the way that it manages a large storage ecosystem.

Ceph在分布式文件系统空间中并不是唯一的，但它在管理大容量存储生态环境的方法上是独一无二的。

Ceph fills a gap in distributed storage, and it will be interesting to see how the open source offering evolves in the future.

Ceph填补了分布式存储中的空白，看到这个开源产品如何在未来演变也将会是很有趣的。

Rather than rely on allocation lists (metadata to map blocks on a disk to a given file), Ceph USES an interesting alternative.

Ceph使用一个有趣的备选，而不是依赖分配列表(将磁盘上的块映射到指定文件的元数据)。

Another recent file system is Ceph, which provides a reliable POSIX-based distributed file system with no single point of failure.

另一个最近出现的文件系统是Ceph，它提供一个可靠的基于POSIX的分布式文件系统，这种文件系统没有单点故障。

The metadata server transforms the file name into an inode, file size, and striping data (layout) that the Ceph client uses for file I/O.

元数据服务器将文件名转变为索引节点，文件大小，和 Ceph 客户端用于文件 I/O 的分段数据（布局）。

As if the dynamic and adaptive nature of the file system weren't enough, Ceph also implements some interesting features visible to the user.

如果文件系统的动态和自适应特性不够，Ceph还执行一些用户可视的有趣功能。

In the Resources section, you'll find information on how to set up a simple Ceph cluster (including metadata servers, object servers, and monitors).

在参考资料部分中，您将会找到如何设置一个简单Ceph集群(包括元数据服务器，对象存储服务器和监视器)的信息。

As Linux presents a common interface to the file systems (through the virtual file system switch [VFS]), the user's perspective of Ceph is transparent.

因为Linux显示文件系统的一个公共界面(通过虚拟文件系统交换机[VFS])，Ceph的用户透视图就是透明的。

A set of servers access the Ceph ecosystem through a client interface, which understands the relationship between metadata servers and object-level storage.

一系列服务器通过一个客户界面访问Ceph生态系统，这就明白了元数据服务器和对象级存储器之间的关系。

From a storage perspective, Ceph object storage devices perform the mapping of objects to blocks (a task traditionally done at the file system layer in the client).

从存储角度来看，Ceph对象存储设备执行从对象到块的映射(在客户端的文件系统层中常常执行的任务)。

Ceph has developed some very interesting concepts (such as dynamic metadata partitioning and data distribution and replication), which this article explores shortly.

Ceph开发了一些非常有趣的概念(例如，动态元数据分区，数据分布和复制)，这些概念在本文中只进行简短地探讨。

The ideas behind Ceph appear to offer an interesting future for distributed file systems, as massive scales introduce unique challenges to the massive storage problem.

Ceph 背后的想法为分布式文件系统提供了一个有趣的未来，因为海量级别存储导致了海量存储问题的唯一挑战。

Note that there can be many Ceph clients, many object storage endpoints, numerous metadata servers (depending on the capacity of the file system), and at least a redundant pair of monitors.

要注意的是，Ceph客户，对象存储端点，元数据服务器(根据文件系统的容量)可以有许多，而且至少有一对冗余的监视器。

One of the key differences between Ceph and traditional file systems is that rather than focusing the intelligence in the file system itself, the intelligence is distributed around the ecosystem.

Ceph 和传统的文件系统之间的重要差异之一就是，它将智能都用在了生态环境而不是文件系统本身。

It does all of this with the goal of POSIX compatibility, allowing it to be transparently deployed for existing applications that rely on POSIX semantics (through Ceph-proposed enhancements).

它利用POSIX的兼容性完成所有这些任务，允许它对当前依赖POSIX语义(通过以Ceph为目标的改进)的应用进行透明的部署。

The administrator's perspective will certainly differ, given the potential for many servers encompassing the storage system (see the Resources section for information on creating a Ceph cluster).

管理员的透视图肯定是不同的，考虑到很多服务器会包含存储系统这一潜在因素(要查看更多创建Ceph集群的信息，见参考资料部分)。

Because the Ceph clients implement CRUSH and do not have knowledge of the block mapping of files on the disks, the underlying storage devices can safely manage the mapping of objects to blocks.

因为Ceph客户实现CRUSH，而且对磁盘上的文件映射块一无所知，下面的存储设备就能安全地管理对象到块的映射。