Hitachi, Ltd.

Nhk Spring Co., Ltd.

Takashi Horiuchi

Takahiro Nakano

Yoshiaki Eguchi

Junichi Hara

Koji Sonoda

Hiroshi Okamoto

Hideki Kashima

Tetsuji Toge

Hiroshi Majima

Kazuhiro Suga

Chihiro Kono

Kenichi Miyata

Hisashi Ono

Ariko Kawasaki

Naoto Matsunami

Katsumi Hirezaki

Nobuyuki Saika

Masao Hanya

Yukie Yamada

Akira Nojima

Noriyuki Saito

Takumi Karasawa

Hajime Tada

Tsuyoshi Aoyama

Yuto Sudo

Takahiro Namura

A flexure includes a metal base, a base insulation layer formed on the metal base, a terminal formed on the base insulation layer, a conductor portion electrically conductive to the terminal and an detouring extending portion formed on the conductor portion. The conductor portion includes a conductor and a cover layer covering the conductor. A conductive adhesive is supplied to the terminal. The detouring extending portion is formed in a longitudinal middle of the conductor portion and extends from the side surface of the conductor portion in a direction intersecting the length direction of the conductor portion along the base insulation layer.

Disk device flexure preventing migration of adhesive from a terminal thereof

A method of manufacturing a load beam precisely positions a slider on a dimple of a load beam according to precisely obtained positional data of the dimple, the method includes preparing a work which is a flat plate and serves as the load beam, irradiating at least a part of the work where the dimple is formed with a laser beam, to form a modified part at the irradiated part, carrying out plastic working on the modified part, to form the dimple having a concave curved surface at the modified part, taking an image of the concave curved surface of the dimple, obtaining the positional data of the dimple from the image, and positioning the slider on the dimple according to the positional data.

Head suspension, load beam, and method of manufacturing load beam

A method of manufacturing a load beam directly improves the finishing accuracy of the surface of the load beam having a tab and/or a dimple, and the method includes a modifying process of preparing a flat plate work serving as the load beam and irradiating a part of a surface of the work where the tab and/or the dimple is formed with a laser beam, to form a modified layer in the irradiated part and a forming process of carrying out plastic working on the part where the modifies layer is present, to form the tab and/or the dimple in the part where the modified layer is present.

Head suspension, load beam, method of manufacturing load beam, and method of processing work

A load beam is capable of securing a required level of positioning accuracy for a slider, a load beam has a body and a dimple, the body is made of a plate having a first surface and a second surface, the dimple has a convex curved surface protruding from the first surface of the body and supports a slider so that the slider is movable in predetermined directions to write and read information to and from a disk in a disk drive, and the load beam includes a mark formed on the second surface of the body, configured to provide positional information about a vertex of the dimple.

A system renting out file servers to many companies in a data center has a security problem so that the user cannot perform operation needing manager authorization in the file servers. An OS provides execution administrative area information of an application program designated by process information which can specify the range of an accessible device to operate the server system of the customer in the administrative area information.

Virtual file servers with storage device

In the manufacture of a load beam for reading and writing a hard disk in a hard disk drive which load beam has a body having a slope extending from a front end thereof and bent along a bend line in a direction opposite to the hard disk, a tab protruding from the slope and to be guided on a guide of the hard disk drive, and a box-bent portion extending along each side edge of the body and slope and passing through an end of the bend line. A first stage is preparing a load beam material that is flat and has a deformation control zone on a section to be processed into the box-bent portion of the load beam material corresponding to the section to be processed into the bend line so as to prevent the box-bent portion from deforming and protruding when the box-bent portion is formed.

A management server in a storage system manages a table that stores, as a change history, at least configuration change and a change time for plural volumes; acquires specification of a recovery-target volume and of a recovery time, and acquires, from the table, information on the specified volume and the specified recovery time; shows, in a user interface, a point of difference between a current configuration of the specified volume and a configuration of the specified volume as of at the specified time in a manner distinguishing it from the other parts in display based on the acquired information and current information on the specified volume; and recovers the specified volume to its state as of at the specified time based on backup data and journal data after acquisition of an instruction to recover the specified volume to its state as of at the specified time based on the display.

Storage system and storage system management method

Snapshots are implemented by combining original data in a place where an operational volume has been updated with data in a place where the operational volume has not been updated. A snapshot management table maintains a value indicating that update has not been conducted, or a storage place of original data, for each of combinations of blocks in the operational volume and the snapshots. If there is a snapshot in which update has not been conducted in a update place at the time of update, then original data is copied and the snapshot management table is updated. The copied original data is managed by a difference block management table, which has a value indicating whether respective snapshots are referencing the data. If a snapshot is deleted, then the value indicating that the snapshot is referencing is altered in all entries in the difference block management table.

Method of maintaining a plurality of snapshots, server apparatus and storage apparatus

A load/unload-type head suspension is capable of suppressing frictional coefficient variations. The head suspension has a head and a tab that is slid and guided along a ramp block in a read/write apparatus, to move the head away from a hard disk to a retract position. The tab is provided with microscopic irregularities to suppress frictional coefficient variations when the tab is guided along the ramp block. A center line average roughness (Ra) of the microscopic irregularities being greater than 0.2 &#x3bc;m or smaller than 0.6 &#x3bc;m.

Load/unload-type head suspension and method of processing the same

In a storage system with a server apparatus having at least one CPU, a memory, at least one network interface, and at least one storage interface, and, at least one disk connected to the storage interface, the server apparatus has a snapshot management part which maintains and manages snapshot of the disk apparatus, the disk apparatus has an operational volume which performs ordinary read/write and a differential volume which stores differential data of snapshot of the operational volume, the snapshot management part stores data on the operational volume in the differential volume, provides a preceding copy area to store its location information, and when free area on the differential volume becomes insufficient discards the stored location information and uses the preceding copy area as an free area.

Storage system, server apparatus, and method for creating a plurality of snapshots

A primary volume groupincludes a primary volumeand a differential volume. A secondary volume groupincludes a primary volumeand a differential volume. Multiple generations of differential snapshots Dto Dare accumulated in the differential volume. When a new snapshot obtaining request is issued while a usage rate has reached a given value, the volume groupsandare synchronized with the volume snapshot (a), and then split (b). After being split, the differential volumeis initialized, and the secondary volume groupis backed up (c). Accordingly, a new differential snapshot can be created and held in the differential volume

Storage system and storage control method

Information such as a last scan time and a last update is encrypted and added to a file system that a CPUon a host computermanages. In accordance with the information, hostand a scan server work cooperatively. A scan is omitted for a file that is dated earlier than the last scan time, accelerating file access. When a file to be accessed is virus-infected, the user causing the virus infection is specified. Predetermined countermeasures can also be taken.

Information processing system

A remote site stores data received from a currently-used site and transfers the stored data to a proximal site. The proximal site stores the data received from the remote site and transfers the stored data to the currently-used site. The currently-used site crosschecks the data returned from the proximal site against the data transmitted to the remote site, and when the two data do not match each other, transmits the data to the remote site again.

Growing community of inventors

Yokohama, Japan

Takashi Horiuchi