Backup method and information processing apparatus

An information processing apparatus comprising;

• a physical machine including a memory;
• and
• a storage apparatus;
• wherein the physical machine includes
• a discontinue mechanism configured to discontinue a process of a working system virtual machine operating within the physical machine;
• a first duplicating mechanism configured to duplicate data of a state of the working system virtual machine in the memory, as a duplicating system virtual, machine;
• and
• a first resume mechanism configured to resume the process of the working system virtual machine,
• wherein the storage apparatus includes
• a second duplicate mechanism configured to duplicate data of contents of a working system virtual recording medium used to realize the working system virtual machine, in a duplicating system virtual, recording medium forming the duplicating system virtual machine, within the storage apparatus,
• wherein the discontinue mechanism and the first resume mechanism maintain consistency between the data in the memory and the data in the storage apparatus.

A non-transitory computer-readable storage medium having stored therein a program for causing a computer to execute a backup process comprising:

• discontinuing a process of a working system virtual machine operating within a physical machine;
• first duplicating data of a state of the working system virtual machine in a duplicating system virtual, machine in a memory of the physical machine, as a duplicating system virtual machine;
• second duplicating data of contents of a working system virtual recording medium used to realize the working system virtual machine, in a duplicating system virtual recording medium forming the duplicating system virtual machine, within a storage apparatus;
• and
• first resuming the process of the working system virtual machine,
• wherein the discontinuing and the first resuming maintain consistency between the data in the memory and the data in the storage apparatus.