Hitachi, Ltd.

Kei Takeda

Takato Kusama

Tatsundo Aoshima

Hideo Ohata

Nobuyuki Yamashita

Naoki Shimada

Hiroyuki Ochi

Tadashi Numanoi

Mitsunobu Tasaka

Hideo Takahashi

Yoshitaka Sato

Toshiaki Matsuo

Naoki Ikawa

Jun Nitta

Takaaki Yayoi

Junya Sawazaki

Information processing system for rapidly performing analysis of semistructured data while preserving fault-tolerance of data for a store request acquiring the number which has been stored of the same and data structures set beforehand, refer to data structure management information to determine a data store unit, instructs replica creation of the data with regard to the data stored in the data store unit in which any of the replicas have been stored, transmits an instruction, for performing a data operation, to a data structure operation unit, whereupon a processing unit, in accordance with the content of an analysis request, performs analysis processing by way of either data stored in any of the data storage units after a data structure operation or data which have not been subject to a data structure operation.

Information processing system and control method thereof

In a storage network including at least a computer system, at least an external storage and at least a network system for communication of input/output data between the computer system and the external storage, a method of collecting the performance data on the network system and the software operated on the network system, in which the range or degree of data collection is automatically adjusted as required based on the performance data collected.

Method and system for collecting performance data for storage network

A management computer includes a communication device for communicating with a storage system and a plurality of computers. The management computer also includes a processor executing to: store relation information between the storage system and the plurality of computers; collect a plurality of computer performance information about computer-side I/O loads generated by programs on the plurality of computers, from the plurality of computers; identify a storage resource from a plurality of storage resources in the storage system; and identify at least one computer performance information from the plurality of computer performance information based on the relation information; and output the at least one computer performance information to a display. The at least one computer performance information corresponds to a certain computer-side I/O load that generates a load to the identified storage resource.

Method for analyzing performance information

A performance information display method using a computer, includes the steps, in the computer, of reading out information data of a storage device previously stored in a storage device and information data of a plurality of devices utilizing the storage device, displaying an identifier of the storage device and identifiers of a plurality of devices utilizing the storage device on a screen on the basis of the information data read out, accepting a command to select the displayed identifier of the storage device, and displaying performance information data of the devices utilizing the selected storage device in association on the basis of the accepted command and the information data read out.

A method for rearranging a logical volume including arranging a logical volume rearranging program on a particular server and using the logical volume rearranging program to acquire server/storage mapping information from each server and performance information from each storage subsystem. Moreover, the logical volume rearranging program acquires request I/O (Input/Output) performance and a rearranging rule for each application set by a user. Furthermore, the logical volume rearranging program determines a destination by using the logical volume rearranging destination parity group specified by the user according to the aforementioned information, and rearranges the logical volume according to the storage subsystem performance and the request I/O performance of each application.

Method for rearranging a logical volume in a network connected storage system

Method and program of collecting performance data for storage network

A computer system having a management computer, a storage system including a plurality of RAID groups and a plurality of ports used for accessing storage areas in the plurality of RAID groups, and a plurality of computers coupled to the storage system using computer volumes, each of the computer volumes being configured by one of the RAID groups and accessed via one of the ports. A management computer executes to: receive computer performance information from the plurality of computers, receive resource information indicating a resource of the storage system, the resource being one of the plurality of RAID groups or one of the plurality of ports, and display a part of the computer performance information, which is performance information related to a part of the plurality of computers using a part of the computer volumes related to the resource of the storage system indicated by the resource information.

A method for rearranging a logical volume including arranging a logical volume rearranging program on a particular server and using the logical volume rearranging program to acquire server/storage mapping information from each server and performance information from each storage subsystem. Moreover, the logical volume rearranging program acquires request I/O performance and a rearranging rule for each application set by a user. Furthermore, the logical volume rearranging program determines a destination by using the logical volume rearranging destination parity group specified by the user according to the aforementioned information, and rearranges the logical volume according to the storage subsystem performance and the request I/O performance of each application.

Method for rearranging a logical volume

An 'inter-reader rule extracting portion' is provided to extract rules existing among the sets of ID acquired by the respective readers. In addition, the state in which a predetermined number of rules are invalid is defined as the time to change the service, and at the time of changing the service, the latest rules produced by an 'inter-reader rule re-constructing portion' that reconstructs rules are used to monitor a system.

Sensor device management system and method

Use situations of storage devices utilizing a storage area network (SAN) are predicted and the devices are automatically managed on the basis of the predicted results. To manage the devices utilizing the SAN, there is established the policy prescribing actions each executed when some object to be judged satisfies some condition with regard to storage devices. Information concerning use situations of the devices is collected and a value of an object to be judged of the policy is calculated based on collected information to judge whether the value of the object to be judged satisfies a condition of the policy. When the condition is satisfied, the action of the policy is executed. The objects to be judged of the policy may be actual result values in the past, current values or prediction values in the future relative to use capacity of storages, the number of I/O operations of disk or fragmentation.

Storage device management method, system and program

A CPU of a performance management server, upon receipt of a request from a keyboard or a mouse to newly assign an application to a specified application server, acquires an I/O path between the requested application server and a storage subsystem combined with the application server from the configuration information managed by the internal database of the performance management server, and based on the performance information managed by the database in the performance management server, an I/O path having the performance information satisfying the designated conditions is extracted from the acquired I/O paths and displayed as a candidate path on a display unit.

Storage management system and method using performance values to obtain optimal input/output paths within a storage network

In a file system in which data is distributively stored on a plurality of volumes in compliance with file storage requests from business applications, the present invention calculates reliability requirements or performance requirements which represent storage requirements for the storage of individual files requested for storage, selects an actual file storage destination volume in accordance with the reliability characteristics or performance characteristics of each volume, and stores file data on the selected storage destination volume. Since the storage requirements are calculated to select a storage destination volume for each file, data storage destination optimization can be achieved on an individual file basis.

Data storage system

To provide a method of collecting and storing storage network performance information that allows tracking of the cause of application performance deterioration. It is automatically judged whether or not performance information collected, to be stored, from components of a storage network including a host server and a storage system has a possibility of ever being used in a search for the cause of application performance deterioration, and the degree of importance of performance information is determined based on the result of the judgment. The preservation period of performance information that is high in degree of importance is set long, while a short preservation period is set to performance information of low degree of importance. After the preservation period set to the respective performance information expires, the corresponding performance information is deleted.

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Kawasaki, Japan

Kei Takeda