Hitachi, Ltd.

Manabu Obana

Shotaro Ohno

Susumu Okuhara

Yoshito Mori

Hideki Takeyabu

Yukinori Sakashita

Akihiko Sakaguchi

Tomoya Yamada

Toshiyuki Haruma

Shinichi Ozaki

Hiromichi Yamagiwa

Yosuke Kasai

Yoshihito Takayama

To facilitate the management of a storage system that uses a flash memory as a storage area. A controller of the storage system provided with a flash memory chip manages a surplus capacity value of the flash memory chip, and transmits a value based on the surplus capacity value to a management server, on the basis of at least one of a definition of a parity group, a definition of an internal LU, and a definition of a logical unit. The management server displays a state of the storage system by using the received value based on the surplus capacity value.

Method for managing storage system using flash memory, and computer

Identifiers of a plurality of physical HBAs disposed in a real host are grouped into a virtual HBA(s) for each work application executed in the real host. A storage device of a management server manages a virtual HBA ID which is an identifier of the virtual HBA and physical HBA IDs which are identifiers of the grouped physical HBAs, which are associated with each other. A display device of the management server displays information on a virtual host in which the virtual HBA is virtually disposed.

Storage system and virtual interface management method using physical interface identifiers and virtual interface identifiers to facilitate setting of assignments between a host computer and a storage apparatus

A cache control apparatus is provided in a computer system including an access source and a storage apparatus. This device, based on I/O status information, which is information denoting the I/O status in accordance with an I/O command from the access source, determines whether or not the I/O performance from the access source drops. In a case where the result of this determination is affirmative, the cache control apparatus changes a cache utilization status specified from cache utilization status information, which is information denoting the cache utilization status related to a cache area, to a cache utilization status that improves I/O performance.

Cache control apparatus and method

In order to provide support for a system to operate in a manner appropriate for system requests desired by a user, a management server acquires functions corresponding to system requests acquired using a user interface using a second table for storing a correspondence relationship of functions provided by one or more managed storage devices and system requests occurring at the storage system, simulates whether or not implementation of the system requests is possible from the acquired functions and functions corresponding to the system requests occurring at the current storage system acquired using a third table for storing information for functions provided by the one or more storage devices, and notifies the one or more storage devices of instructions to set functions corresponding to the system requests to valid based on the simulation results of this simulation.

Storage system, management server, system reconfiguration support method for a storage system, and system reconfiguration support method for a management server

A computer system manages logical volumes as operation map including a volume ID of the logical volume and a plurality of pieces of a predetermined operating information (for example, a path setting, main-volume, sub-volume, permanent storage setting, and storage period setting), when an operation is added to the logical volume, corresponding operating information is set to addition and when the operation is released, the information is set to release, and at a time when a predetermined operating information is all set to release, a corresponding logical volume to the volume ID is detected as being deletable, thereby detecting the deletable the logical volume automatically.

Computer system and a method for managing logical volumes

A storage management server collects, stores and displays positions, temperatures and temperature threshold values of physical storage devices from a storage apparatus. It collects, stores and displays positions and power consumptions of variable factor generation sources which are factors that cause the physical storage devices to vary in operation environments, and also calculates the influenceability by variable factor generation sources against the physical storage devices and affected temperatures thereof. It compares the temperature of a given physical storage device to a temperature threshold value of this physical storage device or compares it to an affected temperature thereof due to the variable factor generation sources, thereby moving, for data transfer, an operation position of physical storage device based on a comparison result at such time.

Storage management server and storage configuration relocating method

In the computer system including at least one host computer, and at least one storage system, the storage system includes a physical disk and a disk controller, and provides the host computer with a storage area of the physical disk as at least one logical unit, and the host computer includes at least one application program accessing the logical unit, and a storage area access control unit for, before the application program makes access to the logical unit, transmitting authentication information guaranteeing the application program as a source of the access to the storage system.

Access control method for a storage system

For addressing a problem of a long connecting time of an IC card with an information processing apparatus and a long external power supply time due to storage of data in a non-volatile memory area even after the IC card has completed processing, the present invention provides techniques for notifying the information processing apparatus connected to the IC card of the completion of the processing at the time the IC card has completed the processing, stopping power externally supplied to the IC card, and switching to an internal power supply unit of the IC card. Subsequently, the internal power supply unit is used to transfer data, the contents of which must be ensured from a volatile memory to a non-volatile memory to thereby solve the problem mentioned above.

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Kawasaki, Japan

Manabu Obana