Patent ID: 9317320
Filing Date: 2016-04-19
CPC Classification: G06F

Claim Text:
1. A method for hypervisor-based server duplication comprising: providing a hypervisor of a primary server and a hypervisor of a standby server each comprising a corresponding fault tolerance module; generating a first file system virtual machine (FS VM) on the hypervisor of the primary server; installing a file system in the first FS VM, and disposing a buffer cache operating in conjunction with the file system installed in the first FS VM, in virtual memory allocated to the first FS VM; generating a user virtual machine (USER VM) on the hypervisor of the primary server so that the USER VM shares the file system of the first file system; and duplicating, by the fault tolerance module of the primary server, the buffer cache of the first FS VM into a buffer cache of a second FS VM generated on the hypervisor of a standby server.