Hitachi, Ltd.

Shinya Takeuchi

Shotaro Ohno

Yasufumi Uchiyama

Haruki Masuda

Hiroshi Hayakawa

Akira Shirasu

Takayuki Furo

Daisuke Shinohara

Kenichi Shimooka

Ryu Gemba

Kenta Nakase

Tomohiro Sonomura

To automate processing of agent software which operates in a storage apparatus. A storage system includes: a storage apparatus including a storage device which stores data and one or two or more pieces of agent software, and a controller for controlling the agent software; and a server that transmits and receives information to and from the storage apparatus via a network, wherein the controller: activates the agent software and monitors a status of the agent software; and causes the agent software to execute processing on condition that the status of the agent software is standby.

Storage system and information processing method by 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

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.

Mapping management information denoting the mapping of a first host and first host volume and a second host and second host volume is prepared beforehand. First-path-redundancy information, which is related to the redundancy of a first path of the first host volume, is acquired, and a second host volume and second host mapped to this first host volume and the first host thereof are specified by referencing the mapping management information. The redundancy of a second path, which links the specified second host volume and a second storage volume, is decided based on the first-path-redundancy information. Second-path-redundancy information, which is related to the decided second-path redundancy, is outputted to configure the decided second-path redundancy in the above-mentioned specified second host.

Computer and method for reflecting path redundancy configuration of first computer system in second computer system

In a control device of a computer system in which a plurality of host computers are capable of sharing a same host interface of a storage system are provided: a VOL status monitoring portion that monitors a VOL status of each VOL mapped to the VVOL and determines whether or not the VOL status is changed, and a path number control portion that updates the number of paths connecting to a VVOL in which the VOL status has changed.

Device and method for controlling number of logical paths

The system according to the present invention comprises a first storage area for storing a plurality of logical volume data where the attributes on a plurality of logical volumes are recorded respectively, a second storage area for storing allocation destination candidate data where the attributes on an allocation destination candidate selected from one or more allocation destination candidates are recorded, a third storage area for storing one or more history data to indicate a relationship of a logical volume having a certain attribute among the plurality of logical volumes to an allocation destination candidate having a certain attribute among one or more allocation destination candidates, a device refining unit for refining the plurality of logical volume data to one or more logical volume data based on the plurality of logical volume data, allocation destination candidate data, and one or more history data, and a refined result output section for outputting the content of the refined one or more logical volume data.

Volume management system and method

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.

Information processing system, method for outputting log data, and computer-readable medium storing a computer software program for the same

A plurality of storage devices connected to at least one host computer via a network is to be managed. Access information about accesses from the host computer to each of the storage devices is referred to; a storage area in the storage device that has low access efficiency is determined based on the access information; a host computer having low access efficiency in view of the storage area having low access efficiency is determined based on the access information; a storage area having high access efficiency at least from the host computer having low access efficiency is determined; and data that is stored in the storage area having low access efficiency and used by the host computer having low access efficiency is transferred to the storage area having high access efficiency.

Information processing method and system

A method for setting up a disk-array device, which includes at least one connection port for connection with at least one computer and at least one storage volume for storing data, comprises the steps of: loading configuration-defining data to an information processing device that is connected to the disk-array device, the configuration-defining data being in an electronic-data form; the information processing device generating, in accordance with the configuration-defining data, a setup command for setup of the disk-array device and transmitting the setup command to the disk-array device; and the disk-array device receiving the setup command and performing the setup according to the setup command.

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Fujisawa, Japan

Shinya Takeuchi