05805790 is referenced by 80 patents and cites 7 patents.

In a fault recovery method for a multi-processor system including a main storage and a plurality of virtual machines which are assigned to a plurality of processors under control of a host operating system and a plurality of guest operating systems and which operate on the processors associated therewith, a fault occurring in one of the processors is detected to recover functions of the system. The method includes the steps of setting recovery attributes for failure to each of the virtual machines, assigning a plurality of virtual machines to a plurality of processors and operating the virtual machines on the processors respectively associated therewith, storing, at detection of occurrence of a fault in one of the processors, data and status information of virtual machines assigned to the processor and status information of the processor respectively in a virtual machine save area and a real machine save area of the main storage, storing fault information of the processor in the main storage by a fault recovery circuit having received a report of the fault, restarting an interrupted process and causing an interruption according to the status information of the virtual machines and the status information and fault information of the processor which are obtained from the main storage, and retrieving, when the interruption is received, one of the virtual machines assigned to the processor according to the processor status information in the real machine save area and then assigning the plural virtual machines to the plural processors for operation thereof according to the recovery attributes for failure set to the retrieved virtual machine.

Title
Fault recovery method and apparatus
Application Number
8/620846
Publication Number
5805790
Application Date
March 20, 1996
Publication Date
September 8, 1998
Inventor
Toshiyuki Kinoshita
Tokyo
JP
Shunji Tanaka
Sagamihara
JP
Seiji Nagai
Atsugi
JP
Masaichiro Yoshioka
Sagamihara
JP
Tadashi Nota
Sagamihara
JP
Agent
Antonelli Terry Stout & Kraus
Assignee
Hitachi
JP
IPC
G06F 11/34
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