Abstract: The present invention relates to a management information generation method for a management information generation apparatus (20) in a system (1) including a plurality of managed objects (10, 12, 13, 14), to generate management information for the managed objects (10, 12, 13, 14). A control part (21) of the management information generation apparatus (20) stores configuration information (300) of the managed objects (10, 12, 13, 14) in the system (1), as well as management information (100) previously configured for some managed objects (10, 12, 13, 14) of the plurality of managed objects (10, 12, 13, 14) into a storage part (28). A configuration part (21) of the management information generation apparatus (20) uses the configuration information (300) and the previously configured management information (100) to generate the management information (100) for the other managed objects (10, 12, 13, 14) of the plurality of managed objects (10, 12, 13, 14).

Abstract: A computer system and node search method capable of reducing node discovery time in the computer system with a large number of nodes and a large number of supported protocols is proposed. The computer system includes a management server which is connected to each of first and second nodes via a network and collects and manages first information for each of the first and second nodes including network addresses of the first and second nodes and a protocol type of a communication protocol to be used when communicating with the first or second node. When the management server searches the first and second nodes over the network and detects the second node, it acquires the network address of each first node managed by the second node and the protocol type of the communication protocol to be used when communicating with the first node.

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: 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: Occupancy amount of physical resource of a virtual server (VS) is calculated based on maximum physical resource amount indicating performance of a physical server (PS), the occupied virtual resource coefficient indicating relation of physical resource amount used by the VS to the physical resource amount allocated to the VS and the allocated physical resource coefficient indicating relation of the allocated physical resource to the maximum physical resource amount of the PS, and change value of the occupied physical resource amount from a predetermined occupied physical resource amount is calculated based on the calculated occupancy amount and the predetermined occupied physical resource amount.

Abstract: A method of managing a virtual computer in a computer system including a plurality of computers, each of the computer storing a program for realizing a virtualization management module for managing a virtual computer, including a management storage area that is accessible only by the virtualization management module, storing start-up management information representing a correspondence among identification information on the virtual computer, identification information on a logical storage area storing a service program, and start-up authentication information for starting the virtual computer. The method including: a step of referring to the start-up management information to determine whether the start-up authentication information corresponding to the virtual computer exists, in a case of receiving a start-up request; a step of reading the service program from the logical storage area and executing the read service program, in a case of being determined the start-up authentication information exists.

Abstract: Provided is a computer system, including: at least one storage system providing at least one logical volume, at least one host computer including an I/O device, and a management computer, in which the management computer creates a virtual computer within a network segment to which the management computer belongs, the virtual computer including an I/O device that is the same as the I/O device of the host computer in number and type, defines a connection between the logical volume and the virtual computer, stores a program in the logical volume connected to the virtual computer, sets identification information on the host computer in the virtual computer, releases the connection between the logical volume that stores the program and the virtual computer, and defines a connection between the logical volume whose connection has been released and the host computer.

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: The disclosed method quantifies the reliability of hardware and software installed in a physical server, and calculates an indication of the reliability of each of a plurality of physical servers. Configuration information, failure information, and running information of the hardware and software installed in the physical servers are collected while taking into account lifecycle information of the physical servers, and an indicator for the reliability of the hardware and software is quantified and calculated. Furthermore, an indicator of the reliability of a physical server as a whole is determined based on the indicators for the reliability of the hardware and the software.

Abstract: Disclosed is a computer system provided with an I/O processing unit comprising a buffer and a control unit, wherein the buffer is located between the first computer and a storage apparatus and between a second computer and the storage apparatus and temporarily stores an I/O output from a first computer, and the control unit outputs data stored in the buffer to the storage apparatus, and wherein, a management computer functions to store the I/O output of the first computer in the buffer at a predetermined time, to separate a first storage unit and a second storage unit which are mirror volumes, to connect the buffer and the second storage unit, to connect the second computer and the first storage unit, to output data stored in the buffer to the second storage unit, and to activate the second computer using the first storage unit.

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: It is provided a management computer which refers to switching level information including switching patterns to be used at a time of switching the first task to the second application server; sets a level of a degree of safety for each of the switching patterns; refers to a stop time for each first task which is allowed upon switching the first task to the second application server; selects one of the switching patterns having a switching time that is shorter than the stop time of the task requirement information which is set to the first task and having the level of the degree of safety that is highest among the switching patterns of the switching level information; stops the second task of the second application server by the selected one of the switching patterns; and then controls the second application server to provide the first task.

Abstract: Provided is a deployment method for a server system that includes a storage system having logical disks where disk images are stored and plural servers connected to the storage system via a storage network, the method including the step of causing a deploy management module to copy the logical disks which store the disk images to a free area of the storage system before a deployment command is received. According to this invention, disk images are quickly deployed to servers.

Abstract: In a computer system wherein plural servers are connected with an external disk device via a network, each server incorporates therein a logic partition module for configuring at least one logic partition in the server, and the operating system stored in the logic partition is booted by the boot disk of an external disk device, the failover operation is performed only for the logic partition affected by a failure when the task being executed by a working server is taken over by another server at the time of the failure occurring in the working server.

Abstract: In a virtual computer system controlling a disk volume and a virtual server which is connected to the disk volume, to which the area of the disk volume is allocated as a virtual disk and which executes a process using the allocated virtual disk, the virtual computer system erases information stored in the virtual disk allocated to the virtual server to be deleted correspondingly with the deletion of the virtual server. An administrative server may be provided to select a server system which is low in load from among plural server systems controlling virtual servers as a server system for erasing information stored in the virtual disk allocated to the virtual server to be deleted.

Abstract: There is disclosed a high speed switching method for a disk image delivery system fail-over. A management server sends a disk image of an active server in advance to a standby server. When receiving a report that the active server has failed, the management server judges whether or not it is possible for the standby server to perform the service of the failed active server based on service provision management server information held by the management server and if possible, instructs the standby server to perform the service of the active server. Even if the disk image delivered in advance is different from the disk image of the failed active server, switching of the service to the standby server can be performed more quickly through resetting the setting values of unique information and installing the additional pieces of software on the standby server by the management server than redelivering an appropriate disk image.

Abstract: The reliability is improved at a low cost even in a virtualized server environment. The number of spare servers is reduced for improving the reliability and for saving a licensing fee for software on the spare servers. A server system comprises a plurality of physical servers on which a plurality of virtual servers run, a single standby server, a module for detecting an active virtual server, and a module for switching the correspondence of boot disks of virtualization modules for controlling virtual servers to the physical servers. When a physical server fails, the boot disk of the associated virtualization module is connected to a spare server to automatically activate on the spare server those virtual servers which have been active upon occurrence of the failure.

Abstract: In a computer system to which a plurality of I/O devices are connected and a pool I/O device is included therein, a periodical operation confirmation is performed on a pool I/O device to be used when a fault occurs. A pool I/O device operation confirmation section obtains pool I/O device status information from a pool I/O device status information storage section (provided inside or outside the computer system). The status information includes a pool I/O device ID for identifying the pool I/O device, a type of the pool I/O device, a status value indicating an operation confirmation result, and an update time indicating the most recent operation confirmation time. Then, the pool I/O device operation confirmation section activates the pool I/O device and performs an operation confirmation thereon; terminates the operation of the pool I/O device after the operation confirmation; and updates the pool I/O device status information using the operation confirmation result obtained by the operation confirmation.

Abstract: A proposed fail over method for taking over task that is preformed on an active server to a backup server, even when the active server and the backup server have different hardware configuration. The method for making a backup server take over task when a fault occurs on a active server, comprises steps of acquiring configuration information on the hardware in the active server and the backup server, acquiring information relating the hardware in the backup server with the hardware in the active server, selecting a backup server to take over the task that is executed on the active server where the fault occurred, creating logical partitions on the selected backup server, and taking over the task executed on the active server logical partitions, in the logical partitions created on the selected backup server.

Abstract: In the environment of a virtual server, there is a problem in that the contents in a disk area released correspondingly with the deletion of the virtual server may be read. According to the present invention, in a virtual computer system controlling a disk volume and a virtual server which is connected to the disk volume, to which the area of the disk volume is allocated as a virtual disk and which executes a process using the allocated virtual disk, the virtual computer system erases information stored in the virtual disk allocated to the virtual server to be deleted correspondingly with the deletion of the virtual server. According to another embodiment of the present invention, an administrative serve is provided to select a server system which is low in load from among plural server systems controlling virtual servers as a server system for erasing information stored in the virtual disk allocated to the virtual server to be deleted.