NFS、gfs2、ocfs2对比

思考的牛

在多节点集群环境中有些朋友可能会不知如何选择一个适合自己环境的文件系统，是选择NFS还是GFS2亦或是OCFS2还是几种混合使用都是个难题，可以通过产看以下相关信息来斟酌选择：


● NFS
– Pro: standard, cross-platform, easy to implement
– Con: Poor performance, single point of failure
(single locking manager, even in HA)
● GFS2
– Pro: Very responsive on large datafiles, works on
physical and virtual, quota and SE-Linux
support, faster than EXT3 when I/O operations
are on the same node
– Con: Only supported with Red Hat, Performance
issues on accessing small files on several
subdirectory on different nodes
● OCFS2
– Pro: Very fast with large and small datafiles on
different node with two types of performance
models (mail, datafile). Works on a physical
and virtual.
– Con: Supported only through contract with Oracle
or SLES, no quota support, no on-line resize