Fujitsu Corporation

Kinya Saito

Reisuke Nakagawa

Kenichi Utsumi

Hitomi Akiyama

Ichirou Sakuma

Hiroyasu Inagaki

Hideaki Takahashi

Shinobu Sasaki

Mitsuru Yasue

Toshiya Nakajima

Daisuke Tomii

Yoshiharu Itoh

Keiichi Kato

Toru Furuta

Naoki Hirabayashi

Yoshiharu Itou

Toshiyuki Kasada

Hiroyuki Watanabe

Tatsuya Sasahara

Masato Kawamura

Takashi Hirose

A storage control apparatus includes: a copy processing unit to perform a first copy process of copying, when receiving a write request targeting on a write destination address with a copy of a copy source volume to a copy destination volume being not yet completed, write data of the write destination address to the copy destination volume, and to perform a second copy process, when executing a copy process of an overall storage area of the copy source volume, according to a copy sequence on a management area unit basis of management areas into which the overall storage area is segmented; and a copy sequence resetting unit to reset the copy sequences on the basis of a reception timing of the write request received during the second copy process by the copy processing unit and a write destination address.

Storage control apparatus for copying volume, and copying method

An acquisition unit of an information processing apparatus acquires access information indicating the state of access to a volume of a disk device at least for data read. A determination unit detects a volume in which a sequential read was performed, on the basis of the acquired access information, and determines the volume as a backup source for a backup.

Information processing apparatus, tape device, and computer-readable medium storing program

A storage apparatus includes a key control part to judge a validity of a data access from a request source based on authorization information received therefrom and authorization information created from an enciphering key included in enciphering key information received from a key management apparatus, and a control part to make the data access to the recording medium using the enciphering key in response to an access request from the request source, if the validity of the data access is confirmed. The authorization information from the request source includes a unique code created from the enciphering key if an authentication is successful in the key management apparatus in response to an authentication request from the request source.

Storage apparatus and authentication method

In order to facilitate the management of the hardware key of a library apparatus employing the LTO system, a write function of a noncontact memory (CM: cartridge memory) contained in an LTO tape cartridge is implemented in a medium carrying mechanism part of the library apparatus, and during an insertion to a tape drive, the IDs unique to a library control part and to the medium carrying mechanism part are recorded in the non-contact memory and utilized as the hardware key of an encrypting apparatus. The hardware key written once is overwritten (erased) during an ejection, thereby preventing leakage of key information.

Apparatus and method for managing key in library apparatus

A library apparatus includes, a drive for accessing the mobile medium, a discharge unit for discharging the mobile medium, and a conveyance controller for controlling a conveyance unit. The conveyance controller includes, a memory for storing process content when the discharge unit discharges the mobile medium, a receiver for receiving control information regarding a control unit controlling a discharge operation of the mobile medium, where the control unit is arranged in a host apparatus. The library apparatus and controlling method include determining correct process content in the discharge operation of the mobile medium from the process content stored on the storage, in accordance with the received control information, and detecting a faulty discharge operation by determining, in accordance with the determination result of the correct process content, whether process content transmitted from the host apparatus is normal or not.

Library apparatus, conveyance controller, and control method thereof

A drive control apparatus receives an instruction from an upper unit, to mount a predetermined medium onto a predetermined drive unit. If a combination of the predetermined medium and the predetermined drive unit is determined as inappropriate, the drive control unit replies to the upper unit that the predetermined drive unit cannot be used. A combination of a medium and a drive is appropriate if both, the medium and the drive are suitable for any one of encrypted and unencrypted data.

Apparatus and method for drive control, and computer product

In an erasing and recovering system for a data block on a magnetic tape in a magnetic tape recording and reproducing apparatus, the system includes: a detecting unit for detecting data error caused by a damaged portion on the magnetic tape by reading a data block just after the data block is written to the magnetic tape; a calculating unit for calculating the circumference of the magnetic tape including the damaged portion; an erasing unit for erasing half of the circumference including the damaged portion; and a data write unit for re-writing the same data block as the data block including the error into another half of the same circumference as the circumference including the damaged portion.

Erasing and recovering system for data block on a magnetic tape

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Kawasaki, Japan

Kinya Saito