专利名称:Virtual disk migration
发明人:Sungwook Ryu,Joshua Flank,Pradeep
Thirunavukkarasu
申请号:US14712845申请日:20150514公开号:US09715347B2公开日:20170725
专利附图:
摘要:Techniques for managing the migration of data from one virtual machine toanother using volume snapshotting and sub-file cloning are described. According toexemplary embodiments, data including a header and content is stored on a storage
volume associated with a first virtual machine. The header is converted to be compatiblewith a second virtual machine, and the storage volume is snapshotted to provide a read-only representation of the storage volume at the time that the snapshot was created.New data is created using the converted header and a pointer to the location of the datainside the volume snapshot. Using the exemplary techniques described herein, data canbe migrated from one virtual machine to another in constant time, and data access ismore robust because the pointer refers to the volume snapshot.
申请人:NETAPP, INC.
地址:Sunnyvale CA US
国籍:US
代理机构:Gilliam IP PLLC
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