Patent application number | Description | Published |
20100017574 | STORAGE SYSTEM, METHOD OF CONTROLLING STORAGE SYSTEM, AND STORAGE DEVICE - The present invention provides a storage system and a method of controlling the storage system, in which a second site rapidly resumes system process when a first site is damaged. The storage system comprises a first site including a first storage device, a second site including a second storage device, and a third site including a third storage device, and the method of controlling the storage system comprises a step of making a logical volume of the second storage device consistent with a logical volume of the first storage device by remotely copying only the differential data between the logical volume of the first storage device and the logical volume of the second storage device from a logical volume of the third storage device to the logical volume of the second storage device when the first site is damaged. | 01-21-2010 |
20100138689 | COMPUTER SYSTEM, MANAGEMENT METHOD AND STORAGE NETWORK SYSTEM - A computer system wherein, when a state of the primary host computer is in an active state, a data sent from the primary host computer to the first storage system is copied through a first copy route which includes a route from the first storage system to the second storage system and a route from the second storage system to the third storage system, wherein, if a failure occurs in the primary host computer and a state of the second host computer is to be in an active state, a data sent from the secondary host computer to the second storage system is copied through a second copy route which includes a route from the second storage system to the first storage system and a route from the first storage system to the third storage system. | 06-03-2010 |
20110106766 | REMOTE COPY SYSTEM - Provided is a remote copy system capable of guaranteeing the time ordering of data to be handled by a remote site even when the tasks at the remote site are operated across a plurality of storages or a plurality of volume groups. A consistency group consisting of a secondary journal volume and a replica is associated with a journal group consisting of a primary data volume, a primary journal volume, a secondary journal volume, and a secondary data volume. Upon backing up a secondary data volume and forming a replica, the host system issues a backup time reservation command to a storage apparatus, and the storage apparatus creates a replica by comparing the time stamp added to the journal data and the backup reservation time. | 05-05-2011 |
20110167044 | COMPUTING SYSTEM AND BACKUP METHOD USING THE SAME - This invention provides a computing system in which multiple remote copy destination sites exist and, even if a failure occurs in a copy source volume in a remote copy source site, it becomes possible in at least one remote copy destination site to establish backup in which data must be determined at a certain point in time. The computing system of this invention is characterized by, before the in-storage copy function performing in storage copy in the remote copy source site, setting the pair status of the remote copy destination volume in at least one storage system in multiple remote copy destination storage systems and the remote copy source volume to the mode for terminating remote copy and, after the in-storage copy is completed, changing the above-mentioned pair status to the mode for starting remote copy. | 07-07-2011 |
20110251999 | 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, and from the second to the third storage apparatus), the first initial copy which is the copy for making the contents of the first data volume in the first storage apparatus and the contents of the second data volume in the second storage apparatus consistent and the second initial copy which is the copy for making the contents of the second data volume and the contents of the third data volume in the third storage apparatus consistent are performed. In the second initial copy, the second storage apparatus creates a journal including the update number and the data in the second data volume, and the journal is transferred from the second storage apparatus to the third storage apparatus. The created update number is acquired from the first storage apparatus. | 10-13-2011 |
20120191659 | REMOTE COPYING SYSTEM WITH CONSISTENCY GUARANTEED BETWEEN A PAIR - When plural copy groups including pairs exist, remote copying for pairs belonging to copy groups is suspended selectively on a copy group-to-copy group basis, instead of suspending remote copying in all the copy groups at once. A computer system has a host computer, plural first storage systems comprising plural first logical disks, and plural second storage systems comprising plural second logical disks. A first logical disk and a second logical disk paired with the first logical disk, and each pair belongs to either a first copy group or a second copy group. To selectively suspend remote copying on a copy group-to-copy group basis, one of the copy groups is specified first and then pairs belonging to this copy group are designated. The first storage systems comprising first logical disks of the designated pairs suspend remote copy processing for the designated pairs. | 07-26-2012 |
20120221814 | REMOTE COPY SYSTEM - Provided is a remote copy system capable of guaranteeing the time ordering of data to be handled by a remote site even when the tasks at the remote site are operated across a plurality of storages or a plurality of volume groups. A consistency group consisting of a secondary journal volume and a replica is associated with a journal group consisting of a primary data volume, a primary journal volume, a secondary journal volume, and a secondary data volume. Upon backing up a secondary data volume and forming a replica, the host system issues a backup time reservation command to a storage apparatus, and the storage apparatus creates a replica by comparing the time stamp added to the journal data and the backup reservation time. | 08-30-2012 |
20120311283 | 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, and from the second to the third storage apparatus), the first initial copy which is the copy for making the contents of the first data volume in the first storage apparatus and the contents of the second data volume in the second storage apparatus consistent and the second initial copy which is the copy for making the contents of the second data volume and the contents of the third data volume in the third storage apparatus consistent are performed. In the second initial copy, the second storage apparatus creates a journal including the update number and the data in the second data volume, and the journal is transferred from the second storage apparatus to the third storage apparatus. The created update number is acquired from the first storage apparatus. | 12-06-2012 |
20140136781 | STORAGE SYSTEM - A storage system | 05-15-2014 |
20150268891 | STORAGE SYSTEM - A storage system | 09-24-2015 |
Patent application number | Description | Published |
20090220267 | Image Forming Apparatus - An image forming apparatus can include an image carrier, a transfer device, and an applying circuit, and a controller. The image carrier carries a developer image developed by developer. The transfer device transfers the developer image to a recording media. The applying circuit has an active device and applies a transfer bias voltage to the transfer device. The controller controls the applying circuit with a predetermined control signal during a start-up mode of the applying circuit and during a normal mode of the applying circuit. The normal mode is subsequent to the start-up mode. During the start-up mode of the applying circuit, the controller controls a value (a duty ratio) of the control signal (a PWM signal) with gradual increase and with interposing an interval period (τ | 09-03-2009 |
20090245834 | Image Forming Apparatus - The image forming apparatus includes a transfer device, an applying circuit, a computation circuit, and a controller. The applying circuit applies transfer bias voltage to the transfer device. The computation circuit derives relational expressions (a linear expression and a quadratic expression) according to control signal value calculating zones (a linear-expression and a quadratic-expression computing zones). Each relational expression shows relationship between the control signal value (PWM_Duty) for the applying circuit and the transfer current It generated by the transfer bias voltage. The control signal value calculating zones are divided by a preset control signal value (computation changing Duty). Then, the computation circuit calculates a target control signal value that corresponds to a target transfer current value using the derived expressions and according to the calculating zone. | 10-01-2009 |
20100195150 | Image Forming Apparatus - An image forming apparatus includes: an applying device configured to generate an output signal and apply the output signal to an image forming device; and a controller configured to generate a control signal to supply to the applying device so as to control a value of the output signal so that the value of the output signal is within a predetermined target range and control the applying device using the control signal in a start-up mode and in a normal mode, the normal mode being subsequent to the start-up mode. In the start-up mode, the controller sets a start control signal value larger than a value of the control signal immediately after a first predetermined time, the start control signal value being the value of the control signal during the first predetermined time, the first predetermined time being from a start timing of the start-up mode. | 08-05-2010 |
20110026955 | Image Forming Apparatus and Exposure Control Method of Controlling Exposure Therein - An image forming apparatus comprising a photosensitive body, a charger configured to charge the photosensitive body, an exposure unit configured to expose the photosensitive body charged by the charger, a developer transport section configured to cause relative movement with respect to the photosensitive body for transporting developer therebetween, a current measurement section configured to measure a current flowing between the photosensitive body and the developer transport section, and a determination unit configured to compare a current with a threshold, the current measured by the current measurement section when the photosensitive body and the developer transport section move relatively to each other and a first area of the photosensitive body that needs to be exposed faces the developer transport section, and determine whether an exposure of the photosensitive body is proper based on a result of the comparison. | 02-03-2011 |
20130223859 | Collection Device and Image Forming Apparatus - A collection device including: an accommodation part configured to accommodate therein collected adhering substance; and a detection part configured to detect an amount of the adhering substance in the accommodation part and including, a moving member configured to move from a first position to a second position, the accommodation part being capable of accommodating therein the adhering substance when the moving member is arranged at the first position and being full of the adhering substance when the moving member is in the second position, and a restraining member configured to restrain the moving member from moving from the first position to the second position when the moving member is arranged at the first position, and restrain the moving member from moving from the second position to the first position when the moving member is arranged at the second position. | 08-29-2013 |
20150177675 | COLLECTION DEVICE AND IMAGE FORMING APPARATUS - A collection device including: an accommodation part configured to accommodate therein collected adhering substance; and a detection part configured to detect an amount of the adhering substance in the accommodation part and including, a moving member configured to move from a first position to a second position, the accommodation part being capable of accommodating therein the adhering substance when the moving member is arranged at the first position and being full of the adhering substance when the moving member is in the second position, and a restraining member configured to restrain the moving member from moving from the first position to the second position when the moving member is arranged at the first position, and restrain the moving member from moving from the second position to the first position when the moving member is arranged at the second position. | 06-25-2015 |
Patent application number | Description | Published |
20090326096 | CRAYON AND PROCESS FOR PRODUCING THE SAME - The invention provides a process for producing a crayon having a desired hardness stably without poor gelation using a benzylidene sorbitol gelling agent together with the use of carbon black as a black pigment. The process comprises: | 12-31-2009 |
20100016471 | CRAYON AND PROCESS FOR PRODUCING THE SAME - The invention provides a process for producing a crayon having a desired hardness stably without poor gelation using a benzylidene sorbitol gelling agent together with the use of carbon black as a black pigment. The process comprises: | 01-21-2010 |
20100273914 | CRAYON - The invention provides a crayon which comprises an alternative plasticizer in place of the conventional phthalate ester plasticizers and yet provides writings excellent in water resistance, the crayon comprising a colorant, a gelling agent, an organic solvent, a resin component, and a plasticizer, wherein the plasticizer is at least one selected from diisononyl adipate, acetyltributyl citrate, 1,2-cyclohexanedicarboxylic acid diisononyl, and alkylsulfonic acid phenyl ester and is contained in an amount of 1 to 20% by weight based on the crayon. | 10-28-2010 |