Hitachi, Ltd.

Itaru Isobe

Katsuhiro Uchiumi

Naoki Futawatari

Tatsuo Namba

Yuki Maeda

Toru Harima

Keishi Tamura

Yoshihito Nakagawa

Toru Horimoto

Atsushi Kobayashi

Yoshihisa Honda

Masahiko Haraguchi

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.

Techniques for realizing efficient setting and utilization of configuration including storage volumes in a storage system having an initiator and a target, with a low cost configuration not requiring additional equipment such as a LAN and a server without limitations due to a low-transfer rate network are provided. The storage system has, e.g., an IS serving as an initiator, a TS serving as a target, and a frame relay device R for relaying the communication between the devices. The R has a DB for retaining the configuration information including the configuration of storage volumes in plural devices connected via plural ports, and an exclusive control unit for performing an exclusive control process of the configuration information in the DB upon setting for utilizing the storage volumes among the plural devices. According to update of the configuration of each device, the R updates the configuration information in the DB.

Storage system, configuration management method, and program

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.

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

A method of managing, in a network system having at least two end systems, at least two networks respectively connected to the at least two end systems and at least one transfer device for connecting the networks and transferring data between the networks, a maximum transfer unit of one unit of data transferred at time on a transfer route connected between the two end systems and including the networks and the transfer device. A table is provided having information about the transfer route in each of the end systems and the transfer device, and an optimum value of maximum data lengths of the one unit of data which are transferable on the transfer route is registered, as the maximum transfer unit for the transfer device, in each of the tables. In particular, the optimum value is a minimum value of maximum data lengths of the one unit of data which are transferable through each of the networks on the transfer route.

Growing community of inventors

Sagamihara, Japan

Itaru Isobe