Abstract: This storage controller providing a volume for storing data transmitted from a host system includes a management unit for managing the data written in the volume with a first block area, or a second block area in the first block area which is smaller than the first block area; a snapshot acquisition unit for acquiring a snapshot of the volume at a prescribed timing; and a transfer unit for transferring the data of the volume acquired with the snapshot of the snapshot acquisition unit to an external device with the first block area or the second block area.

Abstract: This storage apparatus further includes a control unit for creating a second volume as a backup volume of the first volume upon receiving a backup command of the first volume from the host apparatus, and sending a completion reply of the backup command to the host apparatus while the formatting of the second volume and the replication from the first volume to the second volume are incomplete.

Abstract: A migration controller 4C creates, inside a migration-destination storage controller 2, a migration-destination volume 7A, a migration-destination snapshot volume 7B and a pool 7C corresponding to a migration-source volume 5A, a migration-source snapshot volume 5B, and a pool 5C, respectively. The migration controller 4C reproduces an update history of a migration-targeted generation as a write process of difference data to the migration-destination volume 7A. The migration-destination storage controller 2 constructs the migration-destination snapshot volume 7B in accordance with the update of the migration-destination volume 7A.

Abstract: This storage controller providing a volume for storing data transmitted from a host system includes a management unit for managing the data written in the volume with a first block area, or a second block area in the first block area which is smaller than the first block area; a snapshot acquisition unit for acquiring a snapshot of the volume at a prescribed timing; and a transfer unit for transferring the data of the volume acquired with the snapshot of the snapshot acquisition unit to an external device with the first block area or the second block area.

Abstract: The input of a prescribed type information element is received from an operator via an operator interface. A first storage system outputs a first type information element required to construct a remote copy environment. A second storage system inputs second setting information, which comprises first type information elements and prescribed type information elements, uses the second setting information to execute a second setting, and outputs the second type information element required to construct a remote copy environment. The first storage system inputs first setting information, which comprises the second type information element, and uses the first setting information to execute a first setting. Since the types of information elements required to construct a remote copy environment are exchanged between the storage systems, the number of types of information elements inputted by the operator are less than the number of types of information elements required to construct the remote copy environment.

Abstract: Upon receiving a primary/secondary switching command from a secondary host system, a secondary storage control device interrogates a primary storage control device as to whether or not yet to be transferred data that has not been remote copied from the primary storage control device to the secondary storage control device is present. In the event that yet to be transferred data is present, the secondary storage control device receives yet to be transferred data from the primary storage control device and updates a secondary volume. The primary storage control device then manages positions of updates to the primary volume due to host accesses to the primary volume occurring at the time of the secondary storage control device receiving the primary/secondary switching command onwards using a differential bitmap table.

Abstract: Upon receiving a primary/secondary switching command from a secondary host system, a secondary storage control device interrogates a primary storage control device as to whether or not yet to be transferred data that has not been remote copied from the primary storage control device to the secondary storage control device is present. In the event that yet to be transferred data is present, the secondary storage control device receives yet to be transferred data from the primary storage control device and updates a secondary volume. The primary storage control device then manages positions of updates to the primary volume due to host accesses to the primary volume occurring at the time of the secondary storage control device receiving the primary/secondary switching command onwards using a differential bitmap table.

Abstract: To provide a processing method for reducing motion blur while increasing resolution. By performing a super-resolution process, a resolution-increased image is obtained from an input image in multiple frames. By performing an enlargement process, an enlarged image is obtained from the input image in one frame. A high-frequency image is obtained by subtracting the enlarged image from the resolution-increased image. A high spatial frequency-emphasized image is obtained by adding the high-frequency image to the resolution-increased image. The enlarged image and high spatial frequency-emphasized image are displayed alternately every half frame.

Abstract: A first storage system that has a first storage device comprises a first interface device that is connected to a second interface device that a second storage system has. A first controller of the first storage system reads system information elements of first system information (information relating to the constitution and control of the first storage system) from a first system area (a storage area that is not provided for the host of the first storage device) and transfers the system information elements or modified system information elements to the second storage system via the first interface device. The system information elements are recorded in a second system area in a second storage device that the second storage system has.

Abstract: A switch device is interposed between a controller and a storage device in a storage system. One or more physical ports among the plurality of physical ports that the switch device has are physical ports that are physically connected, without passing through a host, to one or more physical ports among the plurality of physical ports that another switch device in another storage system has.

Abstract: Provided is a control method for an asynchronous remote copy system, the method including: fixing data in a secondary volume; determining a certain area in the secondary volume that contains data required to be copied to a primary volume from the secondary volume in which the data is fixed; copying the data in the certain area to the primary volume; and swapping the primary volume and the secondary volume for restarting the asynchronous remote copy.

Abstract: Upon receiving a primary/secondary switching command from a secondary host system, a secondary storage control device interrogates a primary storage control device as to whether or not yet to be transferred data that has not been remote copied from the primary storage control device to the secondary storage control device is present. In the event that yet to be transferred data is present, the secondary storage control device receives yet to be transferred data from the primary storage control device and updates a secondary volume. The primary storage control device then manages positions of updates to the primary volume due to host accesses to the primary volume occurring at the time of the secondary storage control device receiving the primary/secondary switching command onwards using a differential bitmap table.

Abstract: Resources of a storage apparatus are utilized effectively by increasing and reducing a capacity of a differential LU used in a snapshot. In a disk array apparatus including a control processor which controls reading and writing of data with respect to a first logical volume which is generated using storage areas of a plural disk drives, performs control such that data in the past stored in the first logical volume is written in a second logical volume as differential data for each generation, and manages the differential data, the control processor manages a pool management table, in which a logical volume usable as the second logical volume is registered, and a pool addition object management table, in which a logical volume which can be added to the second logical volume is registered, and moves the logical volume from the pool addition object management table to the pool management table to thereby increase a capacity of the second logical volume.

Abstract: According to the invention, techniques for detecting and recovering from errors occurring in disk drive subsystems having a controller and drive units connected by a fiber channel loop. Specific embodiments can provide storage subsystems, methods and apparatus for use in information processing environments, for example. Embodiments can determine when each drive is disconnected from the loop in the external storage subsystem structured by using the FC Loop, and thereupon, the FC Loop can be controlled by bridging the communication path using the PBC so that the loop is not broken.

Abstract: An object of the invention is to provide a storage controller and control method that can efficiently and easily prevent reduced data I/O processing performance due to an imbalance between loads on controllers. In the storage controller and control method for providing, to a host computer, logical volumes created in a storage area provided by a storage device and controlling data I/O to/from the logical volumes, the state of loads on the control units for controlling data I/O to/from the logical volumes is monitored, and a control unit allocated to a logical volume is changed to another control unit to equalize loads on the control units.

Abstract: Provided are a storage system and a data management method capable of simplifying the operation of pair configuration by storing information concerning the pair configuration as pair definition information in a storage apparatus. This storage system includes one or more storage controllers for storing data sent from a host system, and a management terminal for managing the input and output of data stored in the one or more storage controllers. In this storage system, the one or more storage controllers include a storage unit for forming two or more logical volumes to be pair-configured in a storage area of a plurality of hard disk drives, and storing as pair definition information the status of not executing initial copy of data to be stored in a pair-configured copy source logical volume to a copy destination logical volume based on a command from the management terminal.

Abstract: A solifenacin succinate-containing composition with less impurities which can be used as a bulk for pharmaceutical is provided. The solifenacin succinate-containing composition of the present invention has a reduced content of especially its optical isomers in comparison with the known compositions containing an acid addition salt of solifenacin, so that it can be used for production of a therapeutic agent containing solifenacin succinate. In addition, the above-described solifenacin succinate-containing composition can be easily produced in accordance with the production method of the present invention.

Abstract: A method controls a storage system including a first storage apparatus including a first storage volume to store data therein, a second storage apparatus including a second storage volume to store data therein, the first and second storage apparatuses being communicably connected, and an information processor communicably connected to the first storage apparatus. The method includes the steps of transmitting by the information processor an identifier to identify the second storage volume in the second storage apparatus to the first storage apparatus, describing by the first storage apparatus the identifier in a data input/output request for the second storage volume and transmitting the data input/output request to the second storage apparatus, and executing by the second storage apparatus data input/output processing for the second storage volume identified by the identifier described in the data input/output request.

Abstract: In a storage controller which stores data provided from a host system, creates a snapshot, which is a data image of a production volume at a given point in time, at regular or irregular intervals, and holds difference data of the snapshot in a pool volume, multiple pool volumes are configured and a different pool volume is assigned to each copy pair including a group of production volumes or a single production volume that does not belong to any group of volumes so that difference data of each copy pair can be saved in its associated pool volume.

Abstract: The present invention aims at providing a storage apparatus that does not increase the I/O load on a primary volume, even if there are several secondary volumes for which data consistency with the primary volume should be guaranteed. A storage apparatus writes write data for write access directed to a primary volume P to a secondary volume S1. A controller in the storage apparatus copies that write data from the secondary volume S1 to secondary volumes. S2 and S3 in background processing. The storage apparatus uses bitmaps to manage data in the secondary volume S1 shared by each of the secondary volumes S2 and S3.