Abstract: A management computer manages first XaaS including a first node configuration and second XaaS including a second node configuration that is dependent on resources provided by the first XaaS. When a required resource amount which is required for the first XaaS in order to change the second node configuration is larger than a resource amount which can be provided by the first XaaS, the management computer determines a changed first node configuration which is capable of providing a resource amount equal to or larger than the required resource amount and, after changing the first XaaS to the determined changed first node configuration, changes the second node configuration of the second XaaS.

Abstract: A management computer detecting signs of performance degradation even when virtual computing units are generated and destroyed repeatedly over a short period of time. The management computer manages an information system including one or more computers and one or more virtual computing units virtually implemented on the one or more computers, while detecting signs of degradation of the performance. The management computer acquires operating information from all virtual computing units belonging to one or more autoscaling groups, which generates from the operating information, reference values, each of which is used for detecting signs of degradation of the performance of one of the one or more autoscaling groups, and detects signs of degradation of the performance in each autoscaling group using both the reference values generated and the operating information about the virtual computing units as acquired.

Abstract: A system management method for a management computer coupled to a computer system, the computer system including a plurality of computers, an operations system being built thereon the computer system, the operations system including a plurality of task nodes each having allocated thereto computer resources, the system management method including: a step of analyzing a configuration of the computer system for specifying a important node, which is an important task node in the operations system; a step of changing an allocation amount of the computer resources allocated to the important node for measuring a load of the operations system; a step of calculating a first weighting representing a strength of associations among the plurality of task nodes based on a measurement result of the load; and a step of specifying a range impacted by a change in the load of the important node based on the calculated first weighting.

Abstract: An information acquisition method whereby a management computer provided with a processor, a memory, and an interface acquires information of a plurality of computers via a network, the method including: a first step in which the management computer sets, in acquisition group information, a group of computers for acquiring information among the plurality of computers; a second step in which the management computer determines a sequence in which information is acquired for each group, then determines the sequence of computers for acquiring information in the group; a third step in which the management computer outputs an instruction for acquiring information of computers in the determined sequence; and a fourth step in which an information acquisition execution unit acquires the information of the computers of each group in the determined sequence on the basis of the instruction to acquire the information.

Abstract: A system redundancy verification method, which is to be executed in a computer system, the computer system comprising a first computer, a second computer, a storage system, and a management computer, the system redundancy verification method including: a step of obtaining, by the management computer, first hardware information on the first computer and second hardware information on the second computer; a step of obtaining, by the management computer, first storage area information on the storage area; a step of obtaining, by the second computer the second storage area information from the storage system, and a step of comparing, by the management computer, the first hardware information and the first storage area information with the second hardware information and the second storage area information, and determining whether a failover is implementable between the first computer and the second computer.

Abstract: A computer recovery method for a computer system, the computer system having: a management computer having a processor and a memory; and a computer having a processor, a memory, and a monitoring part for notifying, when an abnormality occurs, the management computer of the abnormality, the management computer being configured to instruct recovery from the abnormality, the computer recovery method having: a first step of obtaining, by the management computer, hardware components and software components of the computer as configuration information; a second step of receiving, by the management computer, notification of an abnormality from the monitoring part of the computer; and a third step of generating, by the management computer, after the notification is received, component string information for identifying a component where the abnormality has occurred from the configuration information.

Abstract: Each of hypervisors operates on one of physical servers, and a virtual server operates in accordance with a file image on one of data stores. A management server, when being instructed to execute a task that is configured by a series of steps for a hypervisor on the physical server, gives an instruction for changing the execution place of a step to a temporary execution place and executing the task in a case where there is no restriction on the execution place of the step and instructs a default hypervisor to execute the task in a case where there is a restriction on the execution place of the step.

Abstract: In cases where decided that the guaranteed resource capacity for virtual machine cannot be acquired all at one time, the computer system of the present invention decides whether or not resource capacity guaranteed for virtual machine can be continuously acquired by the start of the virtual machine operation, and if decided that the resource capacity can be continuously acquired, the computer system allocates the total acquired resource capacity to the virtual machine deployed on the physical machine.

Abstract: A processing control method whereby a management server: assigns work to and executes said work on a computer; sets the processing start time and the processing end time for the aforementioned work as task execution information; sets a first physical resource amount, which is the amount of the physical resources of the aforementioned computer needed for execution of the aforementioned processing; acquires a second physical resource amount, which is the amount of the physical resources of the aforementioned computer that are being used; updates the processing start time for the aforementioned work to a time that is close to the current time when the aforementioned computer has the physical resources of the sum of the aforementioned first physical resource amount and the aforementioned second physical resources; and instructs the aforementioned computer to begin the aforementioned processing when the current time reaches the aforementioned processing start time.

Abstract: In order to effectively use the resources on a network, there is provided a management server (200) for selecting each resource of a resource information table (211) as a test resource, if the extraction probability for each resource is equal to or greater than the random numbers probability generated by a random number generation part (221), forming a test server by combining the selected resources, performing the job by using the formed test server, and applying the test server as the server of the particular network if the execution result of the job meets the job determination method.

Abstract: A management computer for managing a management target system comprises an operation situation evaluating part, an operation situation displaying part, an amelioration plan generating part, and an amelioration plan displaying part. The amelioration plan generating part identifies, as an amelioration plan, a business system configuration that ameliorates the operation situation of the business system that is in operation, based on operation situation value calculated by the operation situation evaluating part. The amelioration plan displaying part displays an operation situation that is expected in a case where a business system configuration identified by the amelioration plan generating part is applied, in association with the operation situation of the business system that is in operation.

Abstract: A system management method for a management computer coupled to a computer system, the computer system including a plurality of computers, an operations system being built thereon the computer system, the operations system including a plurality of task nodes each having allocated thereto computer resources, the system management method including: a step of analyzing a configuration of the computer system for specifying a important node, which is an important task node in the operations system; a step of changing an allocation amount of the computer resources allocated to the important node for measuring a load of the operations system; a step of calculating a first weighting representing a strength of associations among the plurality of task nodes based on a measurement result of the load; and a step of specifying a range impacted by a change in the load of the important node based on the calculated first weighting.

Abstract: The present invention is provided with: computers provided with a processor, a memory, and an I/O interface; an I/O switch for connecting a plurality of the computers with an I/O adapter; a management computer for managing the I/O switch and the computers; and a first network for connecting the computers with the management computer. The I/O switch has a dedicated adaptor connected to the management computer. The management computer selects from the plurality of computers a computer for performing data transfer, commands the I/O switch to connect the I/O interface of the selected computer and the dedicated adaptor, transfers data between the selected computer, senses that data transfer with the selected computer has been completed, and commands the I/O switch to disconnect the dedicated adaptor from the I/O interface of the selected computer after completion of the data transfer with the selected computer has been sensed.

Abstract: A method of controlling a virtual machine, including: detecting a predetermined trigger by a management server; acquiring a relationship between a virtualization unit and a virtual machine operated on a physical computer; specifying a virtual machine as a migration target based on preset trigger definition information; determining a physical computer of a migration destination based on a preset first control pattern to generate a first plan to migrate the virtual machine as the migration destination; transforming the first control pattern to a second control pattern; generating a second plan to migrate the virtual machine as the migration destination; performing arithmetic an evaluation value of the first plan and an evaluation value of the second plan; selecting one of the evaluation values meeting a predetermined condition as an execution plan; and migrating by the management server the virtual machine as the migration target based on the selected execution plan.

Abstract: In cases where decided that the guaranteed resource capacity for virtual machine cannot be acquired all at one time, the computer system of the present invention decides whether or not resource capacity guaranteed for virtual machine can be continuously acquired by the start of the virtual machine operation, and if decided that the resource capacity can be continuously acquired, the computer system allocates the total acquired resource capacity to the virtual machine deployed on the physical machine.

Abstract: A highly reliable management apparatus and management method capable of allocating a resource that satisfies a user's request is suggested.

Abstract: A system redundancy verification method, which is to be executed in a computer system, the computer system comprising a first computer, a second computer, a storage system, and a management computer, the system redundancy verification method including: a step of obtaining, by the management computer, first hardware information on the first computer and second hardware information on the second computer; a step of obtaining, by the management computer, first storage area information on the storage area; a step of obtaining, by the second computer the second storage area information from the storage system, and a step of comparing, by the management computer, the first hardware information and the first storage area information with the second hardware information and the second storage area information, and determining whether a failover is implementable between the first computer and the second computer.

Abstract: An information acquisition method whereby a management computer provided with a processor, a memory, and an interface acquires information of a plurality of computers via a network, the method including: a first step in which the management computer sets, in acquisition group information, a group of computers for acquiring information among the plurality of computers; a second step in which the management computer determines a sequence in which information is acquired for each group, then determines the sequence of computers for acquiring information in the group; a third step in which the management computer outputs an instruction for acquiring information of computers in the determined sequence; and a fourth step in which an information acquisition execution unit acquires the information of the computers of each group in the determined sequence on the basis of the instruction to acquire the information.

Abstract: A resource distribution method capable of lending surplus resources among a plurality of services and reducing the maintenance cost of the surplus resources is provided. Computer resources in the standby system have a dead standby state in which at least an application is not installed. A plurality of services or a plurality of users share the computer resources in the standby system. As a result, improvement of the utilization factor of idle computer resources and server integration are implemented, and the cost required to maintain the computer resources is reduced. Furthermore, load prediction is conducted as regards individual services by using past operation history. Idle computer resources secured from services having surplus and maintained are thrown in according to a result of the prediction.

Abstract: A computer system, comprising: at least one computer; at least one network apparatus; at least one storage apparatus; and a plurality of service systems for use in execution of given services, the at least one computer including a system control part for managing the plurality of service systems, the system control part being configured to: hold system configuration information and evaluation information; obtain configuration information of the plurality of service systems from the system configuration information, in a case of evaluating the reliability of the plurality of service systems in the services; calculate the evaluation values of the plurality of service systems; and generate information that indicates the reliability of the plurality of service systems based on the calculated evaluation values.