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Storage system and data management method
A storage system, which is coupled to a computer, includes a storage device, a controller, a plurality of cache memory units, and a connecting unit. Each of the...
Storage system and method of managing a storage system using a management
A storage system has NAS apparatuses each including virtual file servers to be provided to host apparatuses, a storage apparatus including logical units, and a...
Management method of performance history and a management system of
A performance history management method and system are disclosed, in which the time-series performance history such as a volume included in a storage device is...
Storage system and control method thereof
Proposed are a storage system and its control method capable of dealing with the unique problems that arise when using a nonvolatile memory as the memory device...
Digital filter instruction and filter implementing the filter instruction
A digital filter instruction and filter implementing the filter instruction are disclosed. The filter instruction synthesizes a digital filter and includes an...
Method and data processing system with data replication
There is provided a technique capable of executing a predetermined processing while continuing a database processing. Firstly, the database to be operated is...
Method and system for creating snapshots by condition
A data management method in a storage device system having a control device connected to a computer, and a storage device connected to the control device. The...
Storage system, NAS server and snapshot acquisition method
A storage system including: a storage device for storing a file; a plurality of file systems for managing the file; and a plurality of NAS servers that control...
File system migration in storage system
In a cluster type NAS, it is necessary to copy file data between disk devices of servers upon migration of a file system or a part of the file system. A server...
Analytical model creation system
An analytical model creation system can create a desired analytical model by adding a given shape change to an existing analytical model. The system includes an...
Apparatus for and method of controlling variable valve mechanism
The present invention provides an apparatus for and method of diagnosing whether or not a failure occurs in a variable valve mechanism on the basis of a...
Vehicle state estimating apparatus, suspension control apparatus and
A first observer gain of an actual damping force estimating observer 21 calculates a dynamic characteristic compensating signal, and a second observer gain of...
Wind turbine and operating method thereof
A pitch controller, uninterruptible power supply, and rotational speed detector are disposed in the rotor in a wind turbine. When a slip ring failure or wire...
Wireless communication control apparatus and method for mobile objects
According to one aspect of wireless communication control apparatus and method for a mobile object according to the present invention, the wireless...
Communication quality control system
The present invention implements communication control with user's service subscription information reflected in a mobile communication network. A QoS control...
Optical-electrical transceiver module
An optical-electrical transceiver module is to connect an optical-electrical composite cable incorporating an optical fiber and an electric wire to a receptacle...
PON system method for receiving optical signal and OLT
When a signal of weak optical power is received immediately after a signal of intense optical power, input of the signal of intense optical power readily causes...
Heating apparatus, substrate processing apparatus, and method of
manufacturing semiconductor devices
A heating apparatus comprises a wall for surrounding and defining a heating space, a heating element mounted on the inner side of the wall, reflecting members...
Information display device and information display method
In order to prevent interception of information through leakage electromagnetic waves when transmitting the information using an image display unit, an image...
Method and apparatus for analyzing defect data and a review system
In a process for manufacturing a semiconductor wafer, defect distribution state analysis is performed so as to facilitate identification of the defect cause...
Radiological imaging apparatus
A radiological imaging apparatus of the present invention comprises an image pickup device and a medical examinee holding device that is provided with a bed....
Radio communication apparatus
An AN (Access Network) controlled by a communication control apparatus and communicating with a AT Access Terminal), wherein the AN receives control information...
Optical pickup lens
An optical pickup lens for focusing a light beam from a laser light source on an optical information recording medium is a single lens. The optical pickup lens...
Optical disc recording device and recording method thereof
An optical disc recording device according to the present invention is capable of quickly performing the OPC operation for a rewritable optical disc, and is...
Thermally assisted magnetic head-slider and head-gimbal assembly
A thermally assisted magnetic head-slider includes an air-bearing slider, a metal film, and a semiconductor laser unit. The metal film having an aperture in a...
Traffic between logic LSIs and memory is increasing year by year and there is demand for increase of capacity of communication between them and reduction of...
A device capable of exhibiting the extraordinary magnetoresistance (EMR) effect includes an elongate channel formed of silicon. A conductor comprising heavily...
Disk drive including head-slider configured to suppress lubricant droplet
A disk drive. The disk drive includes a disk and a head-slider. The head-slider includes an air-bearing surface. The air-bearing surface includes a...
Perpendicular magnetic recording system with auxiliary coil and circuitry
for fast switching of write pole...
A perpendicular magnetic recording system has a write head having a main coil (the write coil) and main pole (the write pole) that directs write flux in a...
Perpendicular magnetic recording system with helical write coil and
auxiliary coil for fast switching of write...
A perpendicular magnetic recording system has a write head having a main helical coil (the write coil) and main pole (the write pole) that directs write flux in...
Synchronized rewriting of data
A hard disk drive (HDD) including a magnetic disk, the magnetic disk including a data track. The HDD also includes a synchronized rewrite controller for...
Defect inspection method and apparatus
A method and apparatus for inspecting a defect of a surface of a sample in which a laser beam is irradiated on a sample surface so that at least a part of an...
Liquid crystal display device
A liquid crystal display device includes a liquid crystal display panel and a backlight device which supplies light to a back surface of the liquid crystal...
Backlight unit and a liquid crystal display apparatus applying the same
A backlight unit, being thin-sized, but having high definition and high uniformity of luminance, and a video display apparatus applying the same therein, has a...
Improving displayed texture by changing brightness at particular points
The present invention represents an object with high-quality texture. A texture image display apparatus includes: a panel display device (20) having a plurality...
Method for driving plasma display panel
A method for driving a plasma display panel is provided in which wasteful power consumption is reduced and light emission efficiency is improved when the number...
Reducing HDD failure caused by electromagnetic interference from wireless
A system to reduce electromagnetic interference caused damage. The system includes a signal detector operably coupled to a wireless network. The system further...
RFID thread, sheet with RFID thread, and printing machine for sheet with
An RFID thread which is mounted on a sheet and whose predetermined information can be read wirelessly from outside, the RFID thread includes: an IC chip...
Magnetic resonance imaging apparatus and radio frequency pulse waveform
An MRI apparatus comprises a waveform controlling means for calculating a radio frequency pulse and applying the pulse to an irradiating means, and the waveform...
Rotation-angle-detecting apparatus, rotating machine, and
A rotation-angle-detecting apparatus comprising a magnet rotor having 4 or more magnetic poles on the surface, and sensor device for detecting magnetic flux...
Operation control method and operation control apparatus for variable
An excitation device supplies a three-phase AC excitation current to a variable speed generator-motor, and controls the variable speed generator-motor based on...
Electric motor drive system and electric motor control method
An electric motor drive system having current detecting sections for detecting the currents flowing into electric motors, speed variation calculating sections...
Motor control apparatus and motor system
In a motor control apparatus, apparatus all switching devices of all phases of an inverter are kept fixed at OFF in accordance with a value of an all-OFF...
Plasma display device
There is provided a plasma display panel device using phosphors to improve reliability and color reproductivity or color performance. A plasma display panel...
Plasma display panel
A plasma display panel includes a first and a second plate facing each other via a discharge space. On the first plate, a first and a second bus electrode are...
Adhesive, method of connecting wiring terminals and wiring structure
This invention provides a wiring-terminal-connecting adhesive comprising a curing agent capable of generating a free radical upon heating, a radically...
A semiconductor device is disclosed which includes a tab (5) for use in supporting a semiconductor chip (8), a seal section (12) as formed by sealing the...
Gas field ion source, charged particle microscope, and apparatus
A gas field ion source that can simultaneously increase a conductance during rough vacuuming and reduce an extraction electrode aperture diameter from the...
Method and apparatus of pattern inspection and semiconductor inspection
system using the same
A pattern inspection apparatus can be provided, for example, in a scanning electron microscope system. When patterns of a plurality of layers are included in a...
A cord switch includes a hollow insulation having a restoring force, a plurality of inner electrode wires provided along an inner surface of the hollow...