Backup method and information processing apparatus

摘要

A backup method may include discontinuing a process of a working system virtual machine (VM) operating within a physical machine (PM) of a processing apparatus, first duplicating data of a state of the working system VM in a memory of the PM, as a duplicating system VM, second duplicating data of contents of a working system virtual recording medium used to realize the working system VM, in a duplicating system virtual recording medium forming the duplicating system VM, within a storage apparatus of the processing apparatus, and resuming the process of the working system VM. The discontinuing and the first resuming may maintain consistency between the data in the memory and the storage apparatus.

主权项

1. A backup method to backup data of an information processing apparatus comprising a storage apparatus, and a physical machine that includes a processor and a memory, the backup method comprising:
discontinuing, by the processor, a process of a first virtual machine that operates within the physical machine according to a backup instruction that instructs backup of the first virtual machine; duplicating, by the processor in a state in which the process of the first virtual machine is discontinued, data of a state of the first virtual machine in the memory as data of a state of a second virtual machine that operates within the physical machine and is a duplicate of the first virtual machine, and data of contents of a first virtual recording medium used by the first virtual machine in a second virtual recording medium within the storage apparatus; resuming, by the processor, the discontinued process of the first virtual machine upon detecting completion of the duplicating; switching, by the processor, a virtual recording medium at a connecting destination of the second virtual machine to the second virtual recording medium; and storing, by the processor after the resuming and the switching, the data of the state of the second virtual machine and the data of the contents of the second virtual recording medium used by the second virtual machine and stored in the storage apparatus into a backup storage within the storage apparatus in a single store operation, wherein the discontinuing and the resuming maintain consistency of the data in the memory and the data in the storage apparatus.