VxFS file system can run in single instance mode or in a parallel access / cluster mode. The parallel mode allows for multiple servers (also known as cluster nodes) to simultaneously access the same file system. When run in this mode, VxFS is referred to as Veritas Cluster File System.
The Cluster File System provides cache coherency and POSIX compliance across nodes, so that data changes are atomically seen by all cluster nodes simultaneously. Because Cluster File System shares the same binaries and same on-disk layout as single instance VxFS, moving between cluster and single instance mode is straightforward.
Jun_Tan
605 消息
0
2012年8月27日 18:00
楼主：Online JFS不太熟悉，根据你的问题找了资料。
http://en.wikipedia.org/wiki/Veritas_File_System
Online JFS应该是HP OEM Veritas的文件系统。
另外关于你说的并发访问，在维基百科上有下面一段话。集群模式下是可以支持多台服务器并发访问的。
Parallel access mode
VxFS file system can run in single instance mode or in a parallel access / cluster mode. The parallel mode allows for multiple servers (also known as cluster nodes) to simultaneously access the same file system. When run in this mode, VxFS is referred to as Veritas Cluster File System.
The Cluster File System provides cache coherency and POSIX compliance across nodes, so that data changes are atomically seen by all cluster nodes simultaneously. Because Cluster File System shares the same binaries and same on-disk layout as single instance VxFS, moving between cluster and single instance mode is straightforward.
Jeffey1
2.8K 消息
1
2012年8月27日 22:00
HP官网关于online JFS的详细资料介绍，官方使用的名字是VxFS或者Veritas File system，你可以进到网址：
http://h20000.www2.hp.com/bizsupport/TechSupport/DocumentIndex.jsp?lang=en&cc=us&taskId=101&prodClassId=10008&contentType=SupportManual&docIndexId=64255&prodTypeId=18964&prodSeriesId=4296010
里面对VxFS如何安装、配置、参考文档有系列介绍，从文档看HP还是有底蕴的大公司哦！
liulei_it
3.2K 消息
0
2012年8月28日 04:00
感谢万能的google 终于在一个德国的论坛上下载到了相关的PDF，我看看能不能上传到某文库，然后再共享。