摘要:
A storage device system includes an information processing device and at least first and second storage devices. The first and second storage devices are equipped with first and second storage volumes, respectively. The information processing device generates first data including a first instruction that is to be executed by the second storage device, and sends a write request to a first write request section to write the first data according to a first communications protocol in the first storage volume. When the first data written in the first storage volume is the command to be executed by the second storage device, the first storage device sends to a second write request section a write request to write the first data according to a second communications protocol in the second storage volume. The second storage device executes the first command set in the first data that is written in the second storage volume.
摘要:
A recording medium playback device includes a recording medium accommodation unit, a carriage chassis having a pickup, a turntable and a pickup moving device, and a moving device. The moving device moves the carriage chassis from a standby position to a position between recording mediums accommodated in the recording medium accommodation unit to play back a recording medium. The recording medium loading device loads the recording medium inserted from outside into the recording medium accommodation unit. Also, when the carriage chassis is in the standby position, the pickup is situated on a vertical tangential plane tangent to an outer circumferential edge of the recording medium on the carriage chassis side at a point where the outer circumferential edge is intersected by a loading center line of the recording medium when the recording medium is completely loaded in the recording medium accommodation unit by the recording medium loading device.
摘要:
In the data processing system which maintains data duplication between sites having a host computer and a storage apparatus, transfer-data volume and cost in communication line between the sites are controlled and the load of both primary and secondary hosts is controlled, and a data update management function at the secondary site side is realized. In the primary site, a primary DKC of primary storage apparatus stores an update data in a primary side file when a primary user data is updated from a primary host. Being asynchronous with this update, a secondary remote copy program of a primary remote copy program and an intermediate processing section remote-copies and accumulates the update data in a secondary side file. A data reflection program of a secondary host reads the accumulated data and commands a secondary DKC of a secondary storage apparatus to reflect it on a secondary user data and stores the update information in a secondary log data.
摘要:
A data classification processing apparatus assumes that data stored in a database is extracted based on a user instruction. The data classification processing apparatus comprises an information managing unit storing a management point that defines the classification method of the data stored in the database without making the classification method dependent on a particular data item, and an inquiring unit searching the database based on the classification method of the data, which is defined in the management point stored in the information managing unit, in response to a data inquiry from the user.
摘要:
Catalysts for polymerization of &agr;-olefin, composed of a transition metal compound, an inorganic silicate or an ion exchangeable layer compound other than silicate, and optionally an organoaluminum compound, are described. The transition metal compound is represented by formula (I): where A1 and A2 are each independently a conjugated 5-membered ring ligand provided that A1 and A2 may be the same or different in a molecule, and at least one of A1 and A2 forms a 7- to 10-membered condensed ring including two adjacent carbon atoms of the conjugated 5-membered ring, which condensed ring is formed by joining two adjacent substitutent groups on the conjugated 5-membered ring; Q is a bridging group of the two conjugated 5-membered rings of A1 and A2 at optional positions of the 5-membered rings; M is a metal atom selected from elements of Group 4-6 of the Periodic Table; and X and Z are each independently a hydrogen atom, a halogen atom, a hydrocarbon group, and amino group, a halogenated hydrocarbon group, an oxygen-containing hydrocarbon group, a nitrogen-containing hydrocarbon group, a phosphorus-containing hydrocarbon group or a silicon-containing hydrocarbon group.
摘要:
Under the condition that common ink flow passages are formed for separately supplying inks to respective ejection opening arrays of an orifice plate, flow passage cross sectional areas of branched ink flow passages are set respectively according to ejection amounts of the respective ejection opening arrays.
摘要:
A block copolymer is provided comprising one or more blocks of a propylene polymer (PP) and one or more blocks of an ethylene-propylene copolymer (EPR) having the properties: (1) the interface thickness of the PP block with EPR block is from 20-1000 nm; (2) the weight average molecular weight of the PP block is 10,000-1,000,000; (3) the proportion of mesopentad chain in the PP block is not less than 95%; (4) the particle diameter of the disperse phase in EPR block is 0.2-3 microns; (5) the weight average molecular weight of the EPR block is 50,000-1000,000; (6) the propylene content in the EPR block is 20-80 mole %; (7) the composition fluctuation in molecular weight in EPR block is within +/−5% from the average composition.
摘要:
A method and instrument for measuring a vacuum ultraviolet light beam in which a position of an optical unit used for measuring a vacuum ultraviolet light beam can be adjusted easily and measurement of the vacuum ultraviolet light beam is carried out quickly. This method includes a first step of passing a ArSHG laser beam through an achromatic lens system; a second step of adjusting a position of the achromatic lens system such that the ArSHG laser beam which passed through the achromatic lens system is focused on a CCD sensor; a third step of purging the inside of a purge box by using nitrogen gas; and a fourth step of focusing an F2 laser beam which passed through the achromatic lens system on the CCD sensor so as to measure the F2 laser beam.
摘要:
A disc reproducing apparatus comprises a disc holder for receiving a plurality of discs, a disc transporting device for transporting a disc inserted from outside into the disc holder, and a disc reproducing device for reproducing a disc selected from the plurality of discs received in the disc holder. The disc holder includes a plurality of trays each for mounting one disc, guide devices allowing the trays to move only in trays arranging direction, a fixed bottom plate for supporting the plurality of trays, a movable top plate movable in the tray arranging direction by virtue of the guide devices. Further, the movable top plate is urged towards the fixed bottom plate by virtue of an urging device.