Hitachi, Ltd.

Haruki Masuda

Shinya Takeuchi

Akihisa Sato

Shotaro Ohno

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 hostsand, a management serverand a storage subsystem; wherein the business-use hostsandare connected via a SANto the storage subsystem, while the management serveris connected via a LANto the business-use hostsandand the storage subsystem. The management serverfor 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.

Storage system and management method in storage system

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.

Multi-host management server in storage system, program for the same and path information management method

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.

Storage system and path management method for multi-host environment

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.

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.

Storage access device issuing I/O requests, in an associated logical unit environment

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.

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.

Growing community of inventors

Yokohama, Japan

Haruki Masuda