Patent ID: 6615364
Filing Date: 2003-09-02
Classification: G06F

Abstract:
A system recovery method for a computer system having a processing unit, a computer with a main memory connected to the processing unit, and external storage units connected to the computer, the computer system utilizing virtual memory management realized by mapping an area of a virtual memory used by the processing unit onto the main memory, the system recovery method comprising the steps of:in response to a fault occurrence of the computer system, outputting data stored in the main memory to a dump file; making the processing unit to change an identifier set as definition information for identifying the external storage unit to be used as a paging device unit which holds contents of a page of the virtual memory to be paged out from the main memory, from an identifier of a first external storage unit used before the fault occurs to an identifier of a second external storage unit; and restarting the computer system by using the second external storage unit as the paging device unit in accordance with the changed definition information.