Creating virtual machines

A method to create virtual machines is provided. An initially empty primary copy-on-write (COW) image of a base disk image is created, and an initially empty secondary COW image of the primary COW image is created. A virtual machine is booted from the secondary COW image. Writes by the virtual machi...

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Bibliographische Detailangaben
1. Verfasser: Zheng Xiongkai
Format: Patent
Sprache:eng
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Zusammenfassung:A method to create virtual machines is provided. An initially empty primary copy-on-write (COW) image of a base disk image is created, and an initially empty secondary COW image of the primary COW image is created. A virtual machine is booted from the secondary COW image. Writes by the virtual machine are stored in the secondary COW image. When the secondary COW image reaches a capacity threshold, data of the secondary COW image is committed into the primary COW image and then the secondary COW is cleared of data.