Abstract: A medium having stored therein a program for causing a computer to execute a process below, the process includes receiving, from a second device, a request to a first device for utilizing a function provided via a network, acquiring information on a latest version of the function from a device that provides information on the function, determining whether a version of the function extracted from the request matches the latest version, when the extracted version does not match the latest version, transmitting a trial request in which the request is modified so as to utilize the function of the latest version, to the first device, and determining whether or not there is compatibility between the version of the function to be utilized by the request and the latest version based on a response to the trial request.

Abstract: A management device includes a memory device and a processor. The memory device is configured to store recognition sequence information indicating an expected sequence of recognition processing for recognizing each of paths interconnecting any one of first connection units and any one of second connection units. The recognition processing is performed at a time of power-on of a server device including the first connection units. The second connection units are included in respective storage devices. Each of the first connection units and the second connection units is connected to any one of connection ports included in a switch. The processor is configured to monitor a sequence of the recognition processing at the time of power-on, and control the switch, upon detecting a first path for which the recognition processing is performed in a different sequence from the expected sequence, to temporarily cut off connection ports existing on the first path.

Abstract: A system is provided in which a server which provides a service to a client terminal, a disk array device upon which data used by the server is stored, and a monitor terminal which detects a bottleneck on the disk array device, are connected via a network. The disk array device or the server calculates performance information including the number of IO requests issued by the server, the times required for processing the IO requests, and a resource utilization ratio for each resource included in the disk array device. The monitor terminal establishes a reference point based upon an average response time obtained by dividing the processing time included in the performance information by the number of the IO requests. And the system is characterized in that a resource is identified as a bottleneck, based upon the resource utilization ratio in a predetermined interval before the reference point.