| 摘要 |
PROBLEM TO BE SOLVED: To provide a computer system capable of coping with generation of faults and being recovered without preventing the lowering of system performance. SOLUTION: Checkpoint information of a process is managed for every unit of page, an updated page is recorded, whether or not the updated page is stored in the case of the previous collection of the checkpoint information as well is compared, when the updated page is stored in the case of the previous collection of the checkpoint information, only the updated part is transmitted from a primary computer to a backup computer and in other cases, the entire page is transmitted from the primary computer to the backup computer. |
