存储网络专门用于集群文件系统的通信和访问。
The storage network is used exclusively for clustered file system communication and access.
需要访问集群文件系统的每个节点都需要存储网络上的一个地址。
Each node requiring access to the clustered file system needs an address on the storage network.
本系列的下一篇文章介绍存储硬件和集群文件系统设置、配置和实现的细节。
The next article in the series goes into detail about the setup, configuration, and implementation of the storage hardware and clustered file system.
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。
This paper studies the characteristics on the cluster file systems, and proposes a solution to the management of distributed metadata.
通常情况下，集群文件系统都只适合一个站点使用，因为它们通常都对集群节点的隔离度非常敏感。
Typically, cluster file systems are suitable only for use within a single site because they re often sensitive to the degree of separation of the cluster nodes.
对于存储在文件系统上的区块(cooked设备)，解决方案是集群文件系统(例如gfs和OCFS)。
For chunks stored in a file system (cooked devices), the solution is to use cluster file systems (for example, GFS and OCFS).
该方法采用磁盘日志和内存日志的结构，通过对事务的管理，能满足集群文件系统中元数据高可用性的要求。
This method used the structure of disk journal and memory journal, and adopted a mechanism of transaction, so it could meet the request of high availability in file system metadata.
针对当前集群文件系统缺乏动态扩展性和高可用性的不足，提出了一种基于逻辑矢量环结构的集群文件系统HANDY。
Most of existing cluster file systems are shortage of dynamic scalability and high availability, so we provide a new cluster file system based on logical vector rings, named HANDY.
由于集群文件系统的文件数据分散存储在各个结点上，文件的定位需要借助元数据来完成，元数据的管理成为管理数据的一个关键。
Owing to the file data spreading around the cluster, locating a file needs the help of metadata, so managing metadata becomes a key of managing data.
由于冗余是ha集群的关键特性，因而在这个例子中基本的组成部分包括节点管理、分布式文件系统、卷管理和监控。
With redundancy being the key feature of an ha cluster, the components that are essential in this example are node management, a distributed file system, volume management, and monitoring.
存储于文件系统的应用程序数据应当在每个集群服务器中保存一致。
Application data stored on files system should be consistently kept in each cluster server.
在本例所示的这种配置中，集群由完全相同的两个部分组成，若其中任何一个丢失，GPFS文件系统都会不可用。
In a case such as this configuration, where the cluster is made of two identical halves, the GPFS file system becomes unavailable if either half is lost.
简单地安装GPFSRPMS和可移植层无法在新安装的节点上挂载并配置GPFS集群中的文件系统。
Simply installing the GPFS RPMS and portability layer is not enough to mount and configure file systems within the GPFS cluster on the newly installed nodes.
对于分区环境，建议在集群中的一台机器上创建一个单独的DB 2主文件系统，用作实例主目录。
For partitioned environments, it is recommended that you create a separate DB2 home file system on one of the machine in the cluster to be used as the instance home directory.
本部分内容解释了能够在水平集群中使用这种本地搜索服务的原因(每一个服务器需要它自己的文件系统)——作为另一种选择——以及这种配置的优点。
This section explains how you can use this local search service in horizontal clusters (every server needs its own file system), as another option, and the advantages of this configuration.
namenode是Hadoop中的主服务器，它管理文件系统名称空间和对集群中存储的文件的访问。
The namenode is the master server in Hadoop and manages the file system namespace and access to the files stored in the cluster.
为需要高性能存储需求的集群提供并行文件系统支持或采用第三方解决方案。
New parallel file system support and vendor partnerships for clusters with high-performance storage needs.
当集群中的计算节点想要访问并行文件系统中的一个文件时，它需要执行以下步骤。
When a compute node in a cluster wants to access a file in this parallel filesystem, it goes through the following steps.
使用集群代理的方法，您只需要在FAT32或者NTFS文件系统中留出一些空间来存放Linux代理二进制程序。
With the cluster agent approach, you just need to spare some space inside the FAT32 or NTFS filesystem to host Linux agent binaries.
当拉出数据载入到生产环境中时，只需要从这两个文件系统拉出数据，压缩，然后传送到生产集群中。
When they pull data to load into the production environment, they simply pull data from both file systems, and compress, then pass on to their production cluster.
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。
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.
包括一个大型的GPFS集群，该集群分成两个逻辑部分，共用一个大型文件系统。
It includes one large GPFS cluster split into two logical halves with a single large file system.
集群中的每个处理器都为应用程序提供了一个POSIX文件系统环境。
Each processor in the cluster provides a POSIX-file-system environment to the application.
例如，您可能有一个GPFS的后安装脚本，并且需要将一个节点添加到GPFS集群中，然后挂载GPFS文件系统。
For example, you might have a GPFS post-installation script and you need to add a node into the GPFS cluster and mount any GPFS file systems.
这通常通过一个基于网络的集群式文件系统来实现。
This is typically done through a network-based clustered file system.
在某些数据节点已满或者新的空节点加入集群时，实现一个模块来平衡Hadoop分布式文件系统集群上的磁盘空间使用情况。
A module was implemented to balance the disk space usage on a Hadoop Distributed File System cluster when some data nodes became full or when new empty nodes joined the cluster.
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。
Linux offers many different file systems, but a distributed file system provides optimal performance in a clustered environment.
有200多个服务器集群运行有Google文件系统，其中很多集群包含了上千台机器。
There are more than 200 clusters running GFS, and many of these clusters consist of thousands of machines.
在基于集群技术的大规模文件系统中，有效的元数据管理是系统实现的核心。
In the large scale file systems based on the cluster technology, the efficient management of meta-data is critical.
在多个存储节点构成的集群存储系统中，结合应用提高网络存储性能的目标就是利用文件系统方案来实现的。
In a clustered storage system constructed by multiple storage nodes, the goal of improving the network storage performance combined with applications is implemented by file system solution.
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