Abstract: A resource management method executed by an information processing system having a plurality of physical servers 104 and a plurality of virtual servers 120 to be operated on the physical server, and a management server 101 connected to the physical server via a network 207 to specify the virtual server associated to a resource pool 130 and the physical server for operating the virtual server, collect performance information of the specified physical server, and calculate the performance information of the resource pool on the basis of the collected performance information.

Abstract: A management system accepts a connection request from a client computer to a server computer, acquires connection settings information, calculates a network bandwidth required for processing for connection from the client computer to the server computer, stores the connection request into a connection request processing queue, determines whether the processing for the connection from the client computer to the server computer can be performed or not, and notifies the client computer of a server identification number. The client computer issues a connection request to the server computer based on the received server identification number, and starts communication therewith. In spite of concentration of connection requests from a large number of client computers to server computers, the connection requests can be processed while controlling the communication data volume generated in a network at a point where the server computers are aggregated, so as to avoid occurrence of congestion.

Abstract: The present invention provides an attribute value sampling device that obtains communication path establishing control information transmitted and received between data transfer devices, and sets monitoring on the basis of the communication path establishing control information. The attribute value sampling device obtains control information for establishing the communication path sent between the data processors, and extracts setting information relative to the obtaining the attribute value from the obtained communication path establishing control information, and obtains the attribute value from information passing through the path by using the extracted setting information.

Abstract: Information on a communication relation or communication path to be monitored is automatically generated to reduce load of a user. A path information generation part of a network monitoring device receives a destination IP address designated by a user as an object of monitoring. When the input of the destination IP address is received, the path information generation part uses configuration information tables, which store configuration information of a device on a network being monitoring, to identify IP addresses of networks to which a plurality of terminals belong, as branch IP addresses. Further, the path information generation part uses the configuration information tables and transfer destination information tables which store a routing table of a router on the network, in order to identify the connection order of routers between the designated destination IP address and the identified branch IP addresses, to generate path information.

Abstract: In a system which manages path information and status of network with respect to a path being used for access to a storage apparatus and has a redundant path, when a fault occurs in the network, whether or not the path can be recovered by rerouting in network apparatuses is discriminated, thereby performing proper path switching. Construction information and the path information of the network are managed as information of the path which is being used for a storage access by a management server. Further, when the access path is made redundant, the management server obtains fault information in the network and information showing whether or not the path is being reconstructed from the network apparatuses, thereby discriminating the necessity of the path switching. If the path switching is necessary, the management server notifies a host computer and the storage apparatus of it and each apparatus executes a switching process.

Abstract: The present invention decreases the burden of operation required for specifying the continuity status and the cause of failure of a network storage device. A host computer accepts the specification of the device identifier, that is an identifier of the network storage device in the host protocol which positions in a higher hierarchy than the network communication protocol, and a volume identifier, that is an identifier of the volume. Then based on the specified device identifier, the host computer specifies the network identifier, that is an identifier of the network storage device in the network communication protocol. And continuity is confirmed in the network communication protocol in which the specified network identifier is the destination. Also continuity is confirmed in the host protocol in which the device identifier is the destination. And the volume specified by the volume identifier is accessed.

Abstract: A computer system for providing a remote access service includes a unit for acquiring information on a relation between a terminal and a user using the terminal, a unit for acquiring network information about the terminal, a unit for acquiring network information about a blade that the terminal will access, a unit for acquiring information on a relation between the blade and a storage area, and a management server for extracting information on the user and its usage information and providing these information in real time. The management server also has a unit for permitting an administrator of the management server, persons other than the user and a management program to use the blade.

Abstract: A technique which can properly control resources which can be disclosed for an access through a relay apparatus and can improve a security is provided. In a management server, there are executed: a notifying processing module which receives a using request for the resources; a situation information collecting module which, when the using request is received, obtains situation information regarding a case where the resources (server, etc.) are used by a user terminal; a policy collating module which decides the use-permissible resources among the resources on the basis of the situation information; and a filtering control module which controls a filtering by a switch so that an access to the use-permissible resources through a blade PC can be made.

Abstract: In a remote access environment such as a thin client system, there are problems in that a user cannot be informed as to whether a user's computer can be accessed upon activation thereof, or as to whether termination of the computer is completed upon termination thereof, and that an administrator cannot manage computer status of an entire system, leading to delay in identifying failure occurrences.

Abstract: When there is competition for use of a blade PC, a legitimate user is determined by inputting a predetermined number of pieces of additional authentication information. Only when it is possible to determine the legitimate user based on the additional authentication information, the legitimate user is allowed to continuously use the blade PC. Further, while continuous use is allowed, next time a use request is made, additional information of an amount corresponding to that with which determination of the legitimate user has been possible is requested. Thus, when there is competition for access to the blade PC, use is ensured for the legitimate user without sacrificing security.

Abstract: To effectively allocate a computer resource in an environment where the number of computer resources is smaller than the number of users. It is provided with a section for monitoring the utilization state of the computer resources and a section for registering the condition of the possibility of release depending on the user attributes and the computer resource attributes, where when a new allocation request comes up in the state where all the computer resources are allocated, the unused computer resource is identified, released and allocated depending on the utilization state and the condition of the possibility of release.

Abstract: The present invention provides a technique suitable for configuration management of a network for which the number of logical network layers can be set. A network management apparatus 10 receives an address definition information file defining logical hierarchical structure of an IPv6 network 20, from an operator through a definition information reception unit 103. A configuration analysis unit 104 generates management tables defining hierarchical relationships of logical networks, based on the address definition information file and IP addresses collected respectively by an information collection unit 102 from network elements belonging to the IPv6 network 20, and registers the management tables into a management DB unit 101.

Abstract: A management system accepts a connection request from a client computer to a server computer, acquires connection settings information, calculates a network bandwidth required for processing for connection from the client computer to the server computer, stores the connection request into a connection request processing queue, determines whether the processing for the connection from the client computer to the server computer can be performed or not, and notifies the client computer of a server identification number. The client computer issues a connection request to the server computer based on the received server identification number, and starts communication therewith. In spite of concentration of connection requests from a large number of client computers to server computers, the connection requests can be processed while controlling the communication data volume generated in a network at a point where the server computers are aggregated, so as to avoid occurrence of congestion.

Abstract: The invention provides a management system solving the problems of the storage area network shared among plural devices, which was incapable of guaranteeing communication performances due to varied response time, and which required unstable time for accessing volumes.

Abstract: The band controller 500 included in the computer system 1000 regularly acquires map information and IF information, etc. from the work server 100, the storage device 200, and the routers 300 and 400, and based on these pieces of information, detects iSCSI sessions for which the communication band is insufficient. When an iSCSI session with insufficient band is detected, the band controller 500 selects another iSCSI session to perform band allocation based on the iSCSI session importance level or the circuit use-rate. The band controller 500 allocates at least part of the communication band of the network route used by the iSCSI session selected in this way to the iSCSI session with insufficient band. The computer system 1000 performs efficient data transfer in storage area networks on which many variations of communication band exist.

Abstract: In a system which manages path information and status of network with respect to a path being used for access to a storage apparatus and has a redundant path, when a fault occurs in the network, whether or not the path can be recovered by rerouting in network apparatuses is discriminated, thereby performing proper path switching. Construction information and the path information of the network are managed as information of the path which is being used for a storage access by a management server. Further, when the access path is made redundant, the management server obtains fault information in the network and information showing whether or not the path is being reconstructed from the network apparatuses, thereby discriminating the necessity of the path switching. If the path switching is necessary, the management server notifies a host computer and the storage apparatus of it and each apparatus executes a switching process.

Abstract: To provide a storage connection changing method for a storage management system of setting and releasing an external connection between a primary storage system and an external storage system in a storage system, the storage management system includes a computer, the primary storage system, the external storage system, a network device, and a management device which manages the computer, the primary storage system, the external storage system, and the network device. The management device obtains a communication group information for limiting a communicable range between the computer and the storage systems from the network device, upon receiving of a request for changing an external connection state, And the management device generates a communication group information after the changing of the external connection state based on the request for changing the external connection state and the obtained communication group information.

Abstract: Storage groups are generated using group information previously set to a switch 3. In a group information acquisition step, group information, which is previously set to the switch 3 and relates to computers 4 and storage devices 5, is acquired from the switch 3, and the acquired group information is stored in a storing means 16. In a node information acquisition step, node information required for connecting to a network is acquired from each of the computers 4 and the storage devices 5, and acquired node information is stored in the storing means 16. In a group generation step, the storage groups are generated based on the group information stored in the storing means 16. And, in a registration step, the generated storage groups and the node information stored in the storing means 16 are registered at a storage name solving server 2.

Abstract: The present invention decreases the burden of operation required for specifying the continuity status and the cause of failure of a network storage device. A host computer accepts the specification of the device identifier, that is an identifier of the network storage device in the host protocol which positions in a higher hierarchy than the network communication protocol, and a volume identifier, that is an identifier of the volume. Then based on the specified device identifier, the host computer specifies the network identifier, that is an identifier of the network storage device in the network communication protocol. And continuity is confirmed in the network communication protocol in which the specified network identifier is the destination. Also continuity is confirmed in the host protocol in which the device identifier is the destination. And the volume specified by the volume identifier is accessed.

Abstract: A control condition is automatically generated by using a discovery domain managed by an iSNS server as a network communication quality control unit and set in a network device. Thus, it is possible to realize communication whose quality is effectively controlled in storage data transmission. A network configuration server automatically acquires discovery domain information which groups a host and a storage apparatus managed by a name management server. The network configuration server sets a flow identification condition so as to identify the flow per discovery domain according to the information acquired, assigns a service class performing a control of quality of communication service to the flow, and sets transmission rule for the service class to routers.