Hitachi, Ltd.

Junichi Hiwatashi

Atsushi Yuhara

Yutaka Takata

Masamitsu Takahashi

Yoshinori Igarashi

Hiroshi Kuwabara

Takanori Nishio

Masanari Minefuji

According to the prior art storage system, in order to add a storage device to a pool after a storage system has been operated for a certain period of time, the performance may be varied significantly according to the access performance of the application using the pool, and it was not possible to realize an optimum allocation corresponding to the operation form if the storage device is set to be included in a pool of a given tier based on the type of the storage device. Therefore, the present invention provides a system in which a performance test is performed in accordance with an access tendency of the application using the pool to thereby compute the tier capable of having the storage device added thereto, based on which the storage device can be allocated to an appropriate pool.

Storage subsystem and storage control method

This invention provides a computing system in which multiple remote copy destination sites exist and, even if a failure occurs in a copy source volume in a remote copy source site, it becomes possible in at least one remote copy destination site to establish backup in which data must be determined at a certain point in time. The computing system of this invention is characterized by, before the in-storage copy function performing in storage copy in the remote copy source site, setting the pair status of the remote copy destination volume in at least one storage system in multiple remote copy destination storage systems and the remote copy source volume to the mode for terminating remote copy and, after the in-storage copy is completed, changing the above-mentioned pair status to the mode for starting remote copy.

Computing system and backup method using the same

One embodiment provides a computer system and data backup method which enable improvements in the response performance of a storage apparatus to a write request from a host apparatus. In a case where, during execution of same intra-enclosure copy processing, a primary storage apparatus receives a write request in which the data write destination is a storage area in a target range for the same intra-enclosure copy processing in a first primary volume in the primary storage apparatus, the primary storage apparatus transmits an advance notification storing an address of a storage area in a secondary storage apparatus which corresponds to the data write destination storage area designated in the write request to the secondary storage apparatus such that an on-demand copy is executed based on the advance notification in the secondary storage apparatus.

Computer system and data backup method combining flashcopy and remote copy

Online manual display mechanisms that display a portion of a manual during execution of an application program are available conventionally. However, those manuals are not easy to use because manual display cannot be performed so as to follow execution of an application program or a proper portion cannot be opened. The invention provides a unified means for realizing a function displaying a manual portion corresponding to a manipulation for each program by providing, as a manual management mechanism, a graphical user interface to be used for registering manipulation units and a manual as well as APIs that can be referred to by an application program during its execution. The invention also provides a means for downloading a manual from its storage site over the Internet.

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Ooi, Japan

Junichi Hiwatashi