Abstract: An object of the present invention is to recognize the presence of a business-use computer that can be a management target of a management computer, and to register the recognized business-use computer as a management target host. A storage system includes business-use hosts 12 and 14, a management server 16 and a storage subsystem 18; wherein the business-use hosts 12 and 14 are connected via a SAN 22 to the storage subsystem 18, while the management server 16 is connected via a LAN 20 to the business-use hosts 12 and 14 and the storage subsystem 18. The management server 16 for recognizing business-use hosts that can be management objects, sends a communication request to all the IP addresses/ports within a range specified by the user, and registers business-use hosts returning a response in reply to the communication request as management targets.

Abstract: Management arrangements receiving plural failure information from plural host computers for a predetermined period; storing the failure information; extracting one or more of the plural failure information, received from a first host computer among the plural host computers; retrieving the failure information about one path from the extracted failure information, about multiple paths; registering the first host computer via refresh information in the memory, refresh information indicating a host computer of which path information is to be updated; sending a request to the first host computer to acquire a status of a first path of the first host computer; updating a first path information in the plurality of path information of the first host computer, based on the status; and deleting the one or more of the plurality of failure information of the extracting from the failure reception information.

Abstract: Management arrangements to: (A) receive plural failure information from plural host computers for a predetermined period; (B) store the failure information; (C) extract one or more of the plural failure information, received from a first host computer among the plural host computers; (D) retrieve the failure information about one path from the extracted failure information, about multiple paths; (E) register the first host computer via refresh information in the memory, refresh information indicating a host computer of which path information is to be updated; (F) send a request to the first host computer to acquire a status of a first path of the first host computer; (G) update a first path information in the plurality of path information of the first host computer, based on the status; and (H) delete the one or more of the plurality of failure information extracted in (C), from the failure reception information.

Abstract: A storage system and a path management method, which can facilitate node replacement, are proposed. In the storage system, the host sets plural paths between the host and the volume and holds path information composed of management information on each of the paths. The management apparatus includes an integrated path management unit that collects the path information on each of the paths defined between the host and the volume from the corresponding host to manage all the collected information as integrated path information; retrieves an alternate path going through a node other than a specified node but that has the same function as the specified node, for the path going through the specified node, based on the integrated path information; and displays results of the retrieval.

Abstract: Provided is a multi-host management server that includes: a reception section that receives failure information about paths from hosts and stores the received failure information in a failure information reception queue; an extraction section that extracts from the failure information reception queue plural pieces of failure information about a plurality of paths received from a common host; a retrieval section that retrieves failure information about one path from the extracted plural pieces of failure information about the plurality of paths; a registration section that registers information indicating a host in a host refresh queue for updating path information; a deletion section that deletes, after the registration, the plural pieces of failure information about the plurality of paths received from the common host from the failure information reception queue; and an execution section that executes update of path information for the relevant host.

Abstract: A storage access device, which issues an I/O request (input/output request) to a logical unit provided by one or more storage systems, holds association information showing that a plurality of logical volumes corresponding to a plurality of logical units, which belong to the same copy-set, are associated. In the storage access device, the respective associated logical volumes shown by this association information are allocated to a virtual device, and the virtual device is provided to an application.

Abstract: A storage system and a path management method, which can facilitate node replacement, are proposed. In the storage system, the host sets plural paths between the host and the volume and holds path information composed of management information on each of the paths. The management apparatus includes an integrated path management unit that collects the path information on each of the paths defined between the host and the volume from the corresponding host to manage all the collected information as integrated path information; retrieves an alternate path going through a node other than a specified node but that has the same function as the specified node, for the path going through the specified node, based on the integrated path information; and displays results of the retrieval.

Abstract: A storage system and a path management method, which can facilitate node replacement are proposed. In the storage system, the host sets plural paths between the host and the volume and holds path information composed of management information on each of the paths. The management apparatus includes an integrated path management unit that collects the path information on each of the paths defined between the host and the volume from the corresponding host to manage all the collected information as integrated path information; retrieves an alternate path going through a node other than a specified node but has the same function as the specified node, for the path going through the specified node, based on the integrated path information; and displays results of the retrieval.

Abstract: A storage access device, which issues an I/O request (input/output request) to a logical unit provided by one or more storage systems, holds association information showing that a plurality of logical volumes corresponding to a plurality of logical units, which belong to the same copy-set, are associated. In the storage access device, the respective associated logical volumes shown by this association information are allocated to a virtual device, and the virtual device is provided to an application.

Abstract: A storage system and a path management method, which can facilitate node replacement are proposed. In the storage system, the host sets plural paths between the host and the volume and holds path information composed of management information on each of the paths; and the management apparatus includes an integrated path management unit that collects the path information on each of the paths defined between the host and the volume from the corresponding host to manage all the collected information as integrated path information; retrieves an alternate path going through a node other than a specified node and but that has the same function as the specified node, for the path going through the specified node, based on the integrated path information; and displays results of the retrieval.

Abstract: An object of the present invention is to recognize the presence of a business-use computer that can be a management target of a management computer, and to register the recognized business-use computer as a management target host. A storage system includes business-use hosts 12 and 14, a management server 16 and a storage subsystem 18; wherein the business-use hosts 12 and 14 are connected via a SAN 22 to the storage subsystem 18, while the management server 16 is connected via a LAN 20 to the business-use hosts 12 and 14 and the storage subsystem 18. The management server 16 for recognizing business-use hosts that can be management objects, sends a communication request to all the IP addresses/ports within a range specified by the user, and registers business-use hosts returning a response in reply to the communication request as management targets.

Abstract: Provided is a multi-host management server that includes: a reception section that receives failure information about paths from hosts and stores the received failure information in a failure information reception queue; an extraction section that extracts from the failure information reception queue plural pieces of failure information about a plurality of paths received from a common host; a retrieval section that retrieves failure information about one path from the extracted plural pieces of failure information about the plurality of paths; a registration section that registers information indicating a host in a host refresh queue for updating path information; a deletion section that deletes, after the registration, the plural pieces of failure information about the plurality of paths received from the common host from the failure information reception queue; and an execution section that executes update of path information for the relevant host.

Abstract: A path management method for a computer system which includes first and second storage controllers and a host computer, the first controller providing a first volume to the host computer, the second controller providing a second volume to the host computer, the host computer including one or more task application units and a path management unit, the path management method including: setting, by the path management unit, a plurality of first paths and a plurality of second paths; providing, by the path management unit, the first and second volumes as third volume to the task application unit; and transmitting, by the path management unit, through the first path write request for writing data in the third volume which is issued from the task application unit.

Abstract: The present invention relates to a program for causing an information processing device in an information processing system including the information processing device to execute the steps of: executing at least one processing block executed in common when at least two types of commands for controlling the information processing system are respectively executed; storing determination values which are set for the respective types of the commands and which are used to determine whether log data to be outputted by executing the processing block needs to be outputted; and storing results of determining whether the determination values satisfy a log data output condition set for the processing block when the processing block containing an algorithm for outputting the log data is executed.

Abstract: The present invention relates to a program for causing an information processing device in an information processing system including the information processing device to execute the steps of: executing at least one processing block executed in common when at least two types of commands for controlling the information processing system are respectively executed; storing determination values which are set for the respective types of the commands and which are used to determine whether log data to be outputted by executing the processing block needs to be outputted; and storing results of determining whether the determination values satisfy a log data output condition set for the processing block when the processing block containing an algorithm for outputting the log data is executed.