Abstract: An ascertainment device includes a processor that executes a process. The process includes: acquiring addresses of a plurality of respective data processing devices and virtual network identification data associated with the plurality of respective data processing devices; ascertaining the identification data for each of the plural data processing devices based on the acquired virtual network identification data and addresses, association data, stored in a storage section, of addresses and data processing devices, and association data, stored in the storage section, of virtual network identification data and data processing devices; and ascertaining as a data processing device group configured redundantly with respect to execution of specific processing, any data processing devices out of the plural data processing devices with the same virtual network identification data and the same address as each other associated with the identification data of the data processing devices.

Abstract: A management computer performs a process comprising: a first step and a second step. The first step collects failure-predictive information including information on a plurality of kinds of phenomena related to occurrence of a failure from each of a plurality of computers including an active first computer in a redundant system that are managed by said management computer. The second step calculates, for each individual second computer of one or more second computers of a plurality of second computers associated with said first computer in said redundant system, an evaluation value that indicates the probability of occurrence of a future failure in the individual second computer using said failure-predictive information collected from the individual second computer and said failure-predictive information collected from one or more predetermined computers other than the individual second computer of said plurality of computers.

Abstract: An ascertainment device includes a processor that executes a process. The process includes: acquiring addresses of a plurality of respective data processing devices and virtual network identification data associated with the plurality of respective data processing devices; ascertaining the identification data for each of the plural data processing devices based on the acquired virtual network identification data and addresses, association data, stored in a storage section, of addresses and data processing devices, and association data, stored in the storage section, of virtual network identification data and data processing devices; and ascertaining as a data processing device group configured redundantly with respect to execution of specific processing, any data processing devices out of the plural data processing devices with the same virtual network identification data and the same address as each other associated with the identification data of the data processing devices.

Abstract: A management computer performs a process comprising: a first step and a second step. The first step collects failure-predictive information including information on a plurality of kinds of phenomena related to occurrence of a failure from each of a plurality of computers including an active first computer in a redundant system that are managed by said management computer. The second step calculates, for each individual second computer of one or more second computers of a plurality of second computers associated with said first computer in said redundant system, an evaluation value that indicates the probability of occurrence of a future failure in the individual second computer using said failure-predictive information collected from the individual second computer and said failure-predictive information collected from one or more predetermined computers other than the individual second computer of said plurality of computers.