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Method and Apparatus for Creating System Disk Snapshot of Virtual Machine
Method and Apparatus for Creating System Disk Snapshot of Virtual Machine
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机译:创建虚拟机系统磁盘快照的方法和装置
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摘要
A method and apparatus for creating a system disk snapshot of a virtual machine comprises: receiving an instruction for creating a snapshot of a virtual machine; determining existence of a power-on state; renaming a top file in a system disk in response to the received instruction if the power-on state exists; creating a new top file in response to renaming the top file, directing dependency of the new top file to the renamed top file and opening the new top file; determining whether a preceding snapshot is created successfully; using the renamed top file as a first snapshot file if the preceding snapshot is successful; and uploading the first snapshot file to a file management server. Accordingly, when a system disk snapshot is created in a power-on state, the snapshot may be created without stopping the virtual machine, thereby reducing requirements for data back up, storage space, and network bandwidth.
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