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Method of analyzing performance in a storage system
A method of balancing a load in a computer system having at least one storage system, and a management computer, each of the storage systems having physical...
Storage system comprising microprocessor load distribution function
Among a plurality of microprocessors 12, 32, when the load on a microprocessor 12 which performs I/O task processing of received I/O requests is equal to or...
Computer system, virtual computer system, computer activation management
method and virtual computer activation...
A virtual computer system has a plurality of computers for executing a program and a storage system connected to the computers via a network. A virtualization...
Implementing data confidentiality and integrity of shingled written data
A method, apparatus and a data storage device are provided for implementing data confidentiality and integrity of data stored in overlapping, shingled data...
Boot control method of computer system
A computer system comprises two or more computers including at least one standby computer and a management computer which controls the computers. The management...
Storage system and management method thereof
A storage system having at least two storage apparatuses capable of partitioning an internal resource into logical partitions and managing the logical...
Provided is a storage system comprising a plurality of storage subsystem in which each storage subsystem includes a storage resource and controls access from a...
Content approving apparatus
The present invention aims to provide an apparatus capable of determining whether or not content is permitted to be taken out, by managing contents permitted to...
Storage controller and storage control method for copying a snapshot using
copy difference information
Difference information between two snapshots from a first point-in-time snapshot, which has been copied, to an N.sup.th point-in-time snapshot, which...
Storage subsystem and method of executing commands by controller
A storage subsystem capable of processing time-critical control commands while suppressing deterioration of the system performance to a minimum. When various...
Storage system and control method for the same, and program
The present invention provides a criterion for determining whether or not to apply de-duplication processing. That is, by setting a reduction effect threshold...
Cable connection support apparatus and method of supporting cable
A cable connection support apparatus has a structure in which a master apparatus and a slave apparatus are connected to both ends of a plurality of cables, and...
Information service communication network system and session management
A session management server, which is provided with a service determination table having a plurality of entries each indicating a service identifier in...
Node management apparatus and method
A storage resource stores a plugin information package, which is an information package comprising definition information for plugging in a node device as a...
Remote access providing computer system and method for managing same
A computer system for providing a remote access service includes a unit for acquiring information on a relation between a terminal and a user using the...
Storage system and method of controlling same
Data migration is efficiently executed with optional timing. A file server outputs an instruction to a CPU of a storage apparatus to migrate a file belonging to...
Computer for identifying cause of occurrence of event in computer system
having a plurality of node apparatuses
To reduce the burden of processing for completing event cause information, which is carried out when a management target node apparatus is added, removed or...
Storage control device to backup data stored in virtual volume
A storage control device uses write management information that manages locations of the occurrence of writing in one or more first storage devices in order to...
Asynchronous remote copy system and storage control method
Before starting asynchronous remote copy in the multihop method (asynchronous remote copy from the first to the second storage apparatus to the third storage...
Substrate processing apparatus and substrate processing system
To provide a substrate processing system which can cause different display portions to output different displays, and cause different operations to be carried...
Information recording and/or playback apparatus
To provide an information recording and/or playback apparatus for dubbing onto a second recording medium all or some of plural pieces of information from a...
Input-output circuit, recording apparatus and reproduction apparatus for
digital video signal
A video signal input-output circuit and a recording-reproduction apparatus in which a digitally compressed video signal input in packet form can be recorded and...
Hollow fiber formed using metal nano particles
A hollow fiber has a hollow tube, a reflecting film formed on an inner wall of the hollow tube, and the reflecting film is a first metal film formed by baking a...
Method and apparatus for pattern inspection
According to the present invention, for a pattern inspection apparatus that compares images in corresponding areas of two patterns that are identical and that...
Apparatus and method of supporting diagnostic imaging for medical use
A medical image diagnosing support apparatus comprises: a first extraction means which extracts a body region of a subject from a tomographic image of the...
X-ray CT scan simulator and X-ray CT apparatus
There are provided an X-ray CT scan simulator and an X-ray CT apparatus in which a lesion postulated by an operator can be displayed on a simulation image and a...
Systems and methods for storage and processing of radioisotopes
In various embodiments, the system comprises a system for storing radioactive material, wherein the system includes a storage pool for storing a plurality of...
Network relay device and ring network
A network relay device constituting a network includes a transmit/receive unit having plural ports; an FDB for storing as its registered contents at least a...
Base station controller and method for restricting access
In a base station controller for controlling the operation of a base station for executing call control which permits a connection in response to a connecting...
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 pickup device and optical disc apparatus using same
According to the present invention, of all beams of light reflected from the optical disc, only light in a peripheral region excluding a push-pull region is...
Optical disk device and optical disk recording method
An optical disk device and recording method of recording data on an optical disk by driving a laser light source with a driving current superimposed with a...
Optical disc drive and method of controlling power of laser light in
recording to optical disc
This invention provides accurate control of laser light power in a recording operation to achieve more stable recording operation. An optical disc drive in an...
Thermally assisted magnetic recording head and head assembly
In a thermally assisted magnetic recording head (10A), a sub-mount (8A) on which a laser diode is mounted is arranged between an HGA (41) and a magnetic head...
Optically assisted magnetic recording head having a waveguide core with a
plate-shaped portion protruding from...
An optically assisted magnetic recording head causes light to be efficiently incident on a near-field light generating element and is thereby capable of...
Thermally assisted recording systems with low loss light redirection
A system according to one embodiment comprises a slider having a first light channel and a second light channel, the first and second light channels having axes...
Magnetic recording disk drive with shingled writing and wide-area thermal
A thermally-assisted recording (TAR) disk drive uses a "wide-area" heater with "shingled" recording. In shingled recording, the write head pole tip is wider...
Mechanism for locking a board onto a chassis
A mechanism for locking boards with various components mounted on them onto the chassis of an electronic device is composed of brackets, which are attached to...
Commutation type DC breaker
A commutation type DC breaker comprising a main switch inserted in series into a main circuit for connecting a DC source and a load, a commutation capacitor, a...
Tunnel junction magnetoresistive sensor having a near zero
magnetostriction free layer
A magnetoresistive tunnel junction sensor having improved free layer stability, as well as improved free sensitivity. The free layer is constructed to have a...
Magnetic head having reduced cost electrostatic discharge shunt
A method for manufacturing a magnetic head with an electrostatic discharge resistor for preventing electrostatic discharge damage to magnetic head. The...
Vertical-current-type reproducing magnetic head and method of
manufacturing the same
In one embodiment, a vertical-current-type reproducing magnetic head includes a sensor film, an upper shield paired with a lower shield that together flow a...
Magnetic recording and reproducing device including a differential read
A magnetic recording read head is provided capable of achieving high reproduction output, resolution, and SNR, even at a high linear density. There is also...
Flex cable assembly damper
A flex cable assembly for a head stack assembly of a hard disk drive comprises a flex cable for conducting data signals from the head stack assembly to a...
Magnetic disk drive and magnetic head slider with stabilized flying
A magnetic disk drive includes a magnetic recording medium and a magnetic head slider adapted to fly over a surface of a magnetic recording medium and read or...
Asymmetrical air bearing surface for a head slider in hard disk drives
A method and apparatus for a head slider air bearing surface (ABS) in hard disk drives that mitigate fly height deviations. The invention mitigates these...
Perpendicular magnetic recording head
Embodiments of the invention provide a perpendicular magnetic recording head that causes the difference between a physical track width and an effective track...
Magnetic head slider inhibiting a side erase and method of manufacturing
In one embodiment, a magnetic head slider includes a write head having a single magnetic pole, the single magnetic pole having a main magnetic pole piece that...
Inspection method and inspection apparatus
The present invention provides an inspection apparatus and inspection method. The inspection apparatus includes a stage mechanism for supporting an object under...
Liquid crystal display device with light blocking film overlapping drain
A liquid crystal display device which can obviate color mixing of colors when a display screen is viewed from oblique directions while enhancing a numerical...