Patent ID: 9098321
Filing Date: 2015-08-04
Classification: G06F

Abstract:
1. A virtual machine booting method for booting a virtual machine on a physical computer, wherein the physical computer includes a processor, a memory, and a virtual machine manager adapted to assign computer resources of the physical computer to the virtual machine, wherein the physical computer is coupled to a storage, the booting method comprising: a first step of setting, by the virtual machine manager, before the virtual machine is booted, states of a first access path and a second access path that both access the same part of the storage and both couple the virtual machine to the storage; a second step of booting the virtual machine by the virtual machine manager while the virtual machine and the storage are coupled via the first access path; a third step of determining, by the virtual machine manager, when to switch between the first access path and the second access path; a fourth step of switching from the first access path to the second access path when the virtual machine manager determines that a guest operating system included in a boot image of the virtual machine has taken over control; and wherein the first access path is between a first device and the storage, and the second access path is between the first device to a second device, which is different from the first device, and then to the storage.