Hitachi, Ltd.

Naoki Futawatari

Katsuhiro Uchiumi

Itaru Isobe

Tatsuo Namba

Toru Harima

Yuki Maeda

Yasutomo Yamamoto

A first storage system copies data of a virtual area of a first virtual volume to a virtual area of a second virtual volume of a second storage system, monitors accesses with respect to multiple virtual areas of the first virtual volume, updates access information related to the accesses of the multiple virtual areas, and, based on the access information, reallocates data inside an actual area of a first pool allocated to the virtual area of the first virtual volume. The first storage system sends the access information to the second storage system. The second storage system receives the access information, and, based on the access information, reallocates data inside the actual area allocated to a virtual area of the second virtual volume.

Computer system and data management method

Storage system with virtual areas and method for managing storage system

Port management information is prepared for managing information related to the status of each of a plurality of ports possessed by a storage system in a unified manner. Change of the status related to any one of a plurality of ports from 'normal' to anomalous is detected. For a subject external device which is using the anomalous path as an I/O path, a 'normal' port is selected, on the basis of the port management information, from one or more ports related to one or more paths which are being used as alternate paths. And information related to this &#x201c;normal&#x201d; port which has been selected is notified to the subject external device. During path changeover, the subject external device selects as an I/O path an alternate path which is related to the &#x201c;normal&#x201d; port specified from the notified information.

Path changeover support device and method

The present invention unitarily manages the configuration change of a storage system so as to know the latest configuration, and evaluates the reliability in advance when the configuration is changed so that the generation of a failure is suppressed. When the hostis connected to the switch, the attribute information of HBA 1A and the attribute information of the switchare stored in the connection information storage unitC by FDMI (Fabric Device Management Interface) (S, S). Each attribute information is associated with each other and is managed as combination information. The storage deviceacquires the combination information from the switch(S, S), and requests the management deviceto judge the reliability of this combination (S). The management devicejudges the combination of the HBA and the switch (S), and notifies this judgment result to the storage device(S). When the configuration of the storage system is changed, the reliability of the configuration can be confirmed before starting operation with the configuration after change, and therefore the generation of a failure can be decreased.

Managing storage system configuration information

A disk-array device includes an information managing database for acquiring link information among a server device, a switch device, and a storage device via the switch device so as to manage the link information in a combined manner, and a collection/analysis unit for retrieving and collecting desired combined information of the link information from the information managing database so as to analyze the desired combined information.

Disk-array device having storage-device recognition and identification of a storage area network link environment

A disk-array device includes an information managing database for acquiring link information among a server device, a switch device, and a storage device via the switch device so as to manage the link information in a combined manner, and a collection analysis unit for retrieving and collecting desired combined information of the link information from the information managing database so as to analyze the desired combined information.

The present invention unitarily manages the configuration change of a storage system so as to know the latest configuration, and evaluates the reliability in advance when the configuration is changed so that the generation of a failure is suppressed. When the hostis connected to the switch, the attribute information of HBAA and the attribute information of the switchare stored in the connection information storage unitC by FDMI (Fabric Device Management Interface) (S, S). Each attribute information is associated with each other and is managed as combination information. The storage deviceacquires the combination information from the switch(S, S), and requests the management deviceto judge the reliability of this combination (S). The management devicejudges the combination of the HBA and the switch (S), and notifies this judgment result to the storage device(S). When the configuration of the storage system is changed, the reliability of the configuration can be confirmed before starting operation with the configuration after change, and therefore the generation of a failure can be decreased.

Storage system

The present invention unitarily manages the configuration change of a storage system so as to know the latest configuration, and evaluates the reliability in advance when the configuration is changed so that the generation of a failure is suppressed. When the hostis connected to the switchthe attribute information of HBAA and the attribute information of the switchare stored in the connection information storage unitC by FDMI (Fabric Device Management Interface) (SS). Each attribute information is associated with each other and is managed as combination information. The storage deviceacquires the combination information from the switch(S, S), and requests the management deviceto judge the reliability of this combination (S). The management devicejudges the combination of the HBA and the switch (S), and notifies this judgment result to the storage device(S). When the configuration of the storage system is changed, the reliability of the configuration can be confirmed before starting operation with the configuration after change, and therefore the generation of a failure can be decreased.

Growing community of inventors

Yokohama, Japan

Naoki Futawatari