Sensitivity of Cluster File System Access to I/O Server Selection
Sensitivity of Cluster File System Access to I/O Server Selection
复制标题
集群文件系统访问对 I/O 服务器选择的敏感性
DOI：
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复制
发表时间：
2002
期刊：
影响因子：
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通讯作者：
G. M. Amerson
中科院分区：
文献类型：
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作者：
A. Apon;P. Wolinski;G. M. Amerson
本文描述了并行虚拟文件系统(PVFS)和网络文件系统(NFS)在商用Linux集群上的测量测试。PVFS通过跨I/O服务器以循环方式存储固定大小的条带来存储文件。I/O服务器的数量和身份可在执行时选择。我们的评估包括使用不同数量和配置的服务器以及不同的客户端请求模式进行测试。结果表明，服务器的磁盘吞吐量和网络吞吐量限制了文件系统的性能。当系统中的客户端数量以及I/O节点也充当客户端时，NFS和PVFS都会受到影响。对于固定数量的服务器，如果客户端节点不作为服务器参与，则PVFS性能会得到提高。对于测试的工作负载，随着客户端和服务器数量增加到系统上的最大节点数量，PVFS性能会提高。
This paper describes measurement tests of Parallel Virtual File System (PVFS) and Network File System (NFS) over commodity Linux cluster connected with Myrinet. PVFS stores file by storing fixed-size stripes in round-robin fashion cross I/O servers. The number and identity of I/O servers is selectable at execution time. Our evaluation includes testing with varying number and configuration of servers and varying client request patterns. Results show that NFS performance is limited by the disk and network throughput of the server. Both NFS and PVFS are affected by the number of clients in the system and when the I/O nodes also serve as clients. For fixed number of servers, PVFS performance is improved if the client nodes do not participate as servers. For the workloads tested, PVFS performance improves as the number of clients and servers increases to the maximum number of nodes on the system.