发明授权
US07194595B1 Technique for translating a hybrid virtual volume file system into a pure virtual file system data stream
有权
将混合虚拟卷文件系统翻译成纯虚拟文件系统数据流的技术
- 专利标题: Technique for translating a hybrid virtual volume file system into a pure virtual file system data stream
- 专利标题(中): 将混合虚拟卷文件系统翻译成纯虚拟文件系统数据流的技术
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申请号: US10951196申请日: 2004-09-27
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公开(公告)号: US07194595B1公开(公告)日: 2007-03-20
- 发明人: Robert L. Fair , Ashish Prakash , Eric Hamilton , John K. Edwards , Robert M. English
- 申请人: Robert L. Fair , Ashish Prakash , Eric Hamilton , John K. Edwards , Robert M. English
- 申请人地址: US CA Sunnyvale
- 专利权人: Network Appliance, Inc.
- 当前专利权人: Network Appliance, Inc.
- 当前专利权人地址: US CA Sunnyvale
- 代理机构: Cesari and McKenna LLP
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
A technique translates a hybrid virtual volume (vvol) having a file system that contains intermingled virtual and physical volume block numbers (vbns) into a “pure” stream of virtual vbns (vvbns). The stream of vvbns is illustratively embodied as an output file system data stream of a vvol image that is transferred by a source storage system (“source”) to a destination storage system (“destination”) in accordance with image transfer operations, such as volume copying and synchronous or asynchronous mirroring, provided by a volume replication facility. The blocks that are sent as part of the image transfer are selected from a container file of the hybrid vvol on the source. In particular, the invention is directed to a technique for translating physical vbns (pvbns) of a source aggregate on the source to pure vvbns of the output file system data stream that can be used on a destination aggregate of the destination, where embedded pvbns in the source hybrid vvol image are not valid.