| 摘要 |
PROBLEM TO BE SOLVED: To provide a system for OS failure detection capable of quickly performing recovery processing without rewriting an OS when a fatal OS failure occurs.SOLUTION: An OS failure detection unit 113 for detecting an OS failure occurring in a guest OS 121 operating on a virtual machine 120, for example, is placed in an external virtual machine monitor 110 independent from the virtual machine 120, and the OS failure detection unit 113 prestores a screen output instruction output to a display unit by the guest OS 121 at the time of occurrence of an OS failure, as an OS failure time operation pattern, in an OS failure time operation pattern database 115. When the screen output instruction output to the display unit by the guest OS 121 is caught by a screen output instruction acquisition unit 114 as a screen output instruction output from a virtual processor 111 to a virtual video adapter 112, a determination unit 116 determines whether an OS failure occurs in the guest OS 121 based on whether the screen output instruction corresponds to the OS failure time operation pattern. |
