发明申请
US20130019067A1 METHOD AND SYSTEM FOR ENSURING CACHE COHERENCE OF METADATA IN CLUSTERED FILE SYSTEMS
有权
用于确保集群文件系统中元数据的高速缓存的方法和系统
- 专利标题： METHOD AND SYSTEM FOR ENSURING CACHE COHERENCE OF METADATA IN CLUSTERED FILE SYSTEMS
- 专利标题（中）： 用于确保集群文件系统中元数据的高速缓存的方法和系统
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申请号： US13181129申请日： 2011-07-12
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公开(公告)号： US20130019067A1公开(公告)日： 2013-01-17
- 发明人: Murali VILAYANNUR , Jinyuan LI , Satyam B. VAGHANI
- 申请人： Murali VILAYANNUR , Jinyuan LI , Satyam B. VAGHANI
- 申请人地址： US CA Palo Alto
- 专利权人： VMWARE, INC.
- 当前专利权人： VMWARE, INC.
- 当前专利权人地址： US CA Palo Alto
- 主分类号： G06F12/08
- IPC分类号： G06F12/08
摘要：
Metadata of a shared file in a clustered file system is changed in a way that ensures cache coherence amongst servers that can simultaneously access the shared file. Before a server changes the metadata of the shared file, it waits until no other server is attempting to access the shared file, and all I/O operations to the shared file are blocked. After writing the metadata changes to the shared file, local caches of the other servers are updated, as needed, and I/O operations to the shared file are unblocked.
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