A relation management control program, making a computer execute management processing of relation between at least two devices among an information processor device, a switch device and a storage device constituting a network, which also makes the computer execute: a device component information acquisition process, which acquires device component information indicating a configuration of at least two of the devices; an element information creation process, which creates element information corresponding to the device component information based on the device component information acquired by the device component information acquisition process; an association process, which associates each piece of the element information to each other based on a plurality of pieces of element information created by the element information creation process, wherein a hierarchical link structure of all the element information created by the element information creation process is established by storing in a first piece of element information a unique name of a second piece of element information in either a higher-level hierarchy, a lower-level hierarchy or a same-level hierarchy of the first piece of element information; a branch selection information setting process, in which, when intermediate element information, that is element information between the first piece of element information, that is an arbitrary piece of element information of the hierarchical link structure, and the second piece of element information, connected to the first piece of element information via a logical connection route, includes a branched route other than the logical connection route, information that identifies a piece of element information connected by the logical connection route from among the plurality of adjacent pieces of element information connected to a branch route of the intermediate element information is set as branch selection information to the first piece of element information; and characterised by a recovery process, which recovers, in state of failure occurred in at least any one of the pieces of element information, the element information from the state of failure; and a simulated failure setting process, which selects at least one of the element information, and sets the state of failure by causing the simulated failure in the selected element information. a device component information acquisition process, which acquires device component information indicating a configuration of at least two of the devices; an element information creation process, which creates element information corresponding to the device component information based on the device component information acquired by the device component information acquisition process; an association process, which associates each piece of the element information to each other based on a plurality of pieces of element information created by the element information creation process, wherein a hierarchical link structure of all the element information created by the element information creation process is established by storing in a first piece of element information a unique name of a second piece of element information in either a higher-level hierarchy, a lower-level hierarchy or a same-level hierarchy of the first piece of element information; a branch selection information setting process, in which, when intermediate element information, that is element information between the first piece of element information, that is an arbitrary piece of element information of the hierarchical link structure, and the second piece of element information, connected to the first piece of element information via a logical connection route, includes a branched route other than the logical connection route, information that identifies a piece of element information connected by the logical connection route from among the plurality of adjacent pieces of element information connected to a branch route of the intermediate element information is set as branch selection information to the first piece of element information; and characterised by a recovery process, which recovers, in state of failure occurred in at least any one of the pieces of element information, the element information from the state of failure; and a simulated failure setting process, which selects at least one of the element information, and sets the state of failure by causing the simulated failure in the selected element information.