Concurrent access to data from all nodes in a cluster and the high availability built into some distributed file systems are a couple of reasons why they are ideal for a cluster environment.
集群中所有节点对数据的并发访问，以及某些分布式文件系统所内置的高可用性，是它们成为集群环境理想选择的两方面原因。
So, are distributed file systems a third layer on top of the two we have mentioned?
那么，分布式文件系统是否是我们所提及的两层之上的第三层呢？
These features allow AFS to be known as the granddaddy of distributed file systems even after so many years of development.
这些特性使得AFS被公认为是分布式文件系统的鼻祖，虽然AFS已经开发了很多年。
Both of these are distributed file systems.
它们都是分布式文件系统。
The world of open source distributed file systems is very much alive, and other distributed file systems have found applications in the mobile computing world.
开放源码分布式文件系统领域是非常活跃的，其他分布式文件系统在移动计算领域得到了应用。
rsync. This is an excellent tool for distributing files from a central server and keeping distributed file systems in sync.
这个出色的工具用于从中心服务器分发文件以及保持分布式文件系统同步。
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。
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。
Network File System (NFS) is one of the most widely used distributed file systems.
NetworkFileSystem (NFS)是使用最广泛的分布式文件系统之一。
Two such systems incorporate lessons developers learned from the original distributed file system architecture: Coda and the Swedish open source volunteer effort, Arla.
两个这样的结合了开发人员从原始分布式文件系统架构中学到的经验的系统就是：Coda和瑞典开放源码志愿者的成果Arla。
Linux offers many different file systems, but a distributed file system provides optimal performance in a clustered environment.
Linux提供了很多不同的文件系统，但是分布式文件系统在集群的环境中可以带来最优的性能。
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。
Client mail databases were distributed evenly over 52 LVM file systems, each allocated across 5 volumes in a single LVM, providing 11.5 GB of useable space per file system.
客户机邮件数据库均匀分布于52个LVM文件系统，每一个分配都横跨lvm中的五个卷，为每一个文件系统提供11.5GB的可用空间。
Filesystems that manage the storage across a network of machines are called distributed file systems.
管理网络中跨多台计算机存储的文件系统被称之为分布式文件系统。
Different applications of P2P networks enable users to share the computation power (distributed systems), data (file-sharing), and bandwidth (using many nodes for transferring data).
不同软件所使用的P2P网络让用户可以分享电脑的处理能力（分布式系统），数据（文件分享）和带宽（使用多节点传送）。
Earlier distributed file systems, e. g. AFS, have used client side caching to improve performance.
早期的分布式文件系统，例如afs，已经使用客户端缓存来提高性能。
This paper studies the characteristics on the cluster file systems, and proposes a solution to the management of distributed metadata.
本文研究集群文件系统的特征，提出了一种分布式元数据管理技术。
The second is distributed online services, such as file storage systems, databases, hosting of web sites, streaming media ( such as online video ) and advanced web search engines.
第二类是分散式线上服务，比如档案储存系统、资料库、网站代管、串流媒体（如线上影像） ，以及高阶网路搜寻引擎。
PFICS is a distributed file protect system which USES one server to protect file systems of multi-hosts.
PFICS采用一个服务器保护多个主机的文件系统，构成了一个分布式的实时文件保护系统。
Traditional distributed file systems can't provide cluster system with strict single-system image (SSI), which make it difficult to manage file system in a way.
传统的分布式文件系统无法为集群系统提供严格的单一映像功能(SSI)，使得集群系统的管理较为复杂。
The High Availability issue is an important research topic in distributed file systems.
分布式文件系统高可用问题是分布式文件系统的重要研究课题。
One of the key problems of global distributed storage systems(GDSS) encountered is how to implement the file access interfaces which can efficiently access the distributed files.
广域存储虚拟化所要解决的一个问题是如何实现对分布的文件进行方便高效的访问。
INSS is a distributed file system, its goal is to achieve a highly available, high performance, and expandability distributed storage systems.
INSS是一套分布式文件系统，它的目标是实现一套高可用的，高性能的，扩展性强的分布式存储系统。
File data distribution and transparent access to the distributed data is another important issue faced by distributed encrypting storage systems.
分布式加密存储系统面临的另一个重要问题是用户数据分布以及分布数据的透明访问。
Optimizing replica placement distinguishes HDFS from most other distributed file systems.
优化的副本选址使得HDFS有别于大多数分布式文件系统。
Research Interests: distributed file systems, operating systems, and network security.
研究方向：分布式文件系统，操作系统，以及网络安全。
Research Interests: distributed file systems, operating systems, and network security.
研究方向：分布式文件系统，操作系统，以及网络安全。
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