Storage controller and control method for dynamically accomodating increases and decreases in difference data
    51.
    发明授权
    Storage controller and control method for dynamically accomodating increases and decreases in difference data 有权
    存储控制器和控制方法,用于动态调节差异数据的增减

    公开(公告)号:US07454583B2

    公开(公告)日:2008-11-18

    申请号:US11368423

    申请日:2006-03-07

    IPC分类号: G06F12/00 G06F13/00 G06F13/28

    摘要: 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.

    摘要翻译: 在存储从主机系统提供的数据的存储控制器中,以规则或不规则的间隔创建作为给定时间点的生产卷的数据图像的快照,并且将快照的差异数据保存在池卷 ,配置多个池卷,并为每个副本对分配不同的池卷,包括一组生产卷或不属于任何卷组的单个生产卷,以便将每个副本对的差异数据保存在其中 关联池卷。

    Storage system and control method thereof
    52.
    发明申请
    Storage system and control method thereof 有权
    存储系统及其控制方法

    公开(公告)号:US20070186067A1

    公开(公告)日:2007-08-09

    申请号:US11449668

    申请日:2006-06-09

    IPC分类号: G06F1/16

    摘要: 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.

    摘要翻译: 在从辅助主机系统接收到主/次切换命令时,辅助存储控制装置询问主存储控制装置关于是否尚未将未被远程复制的数据从主存储控制装置传送到副存储控制装置 存储控制装置。 在存在尚未被传送的数据的情况下,辅助存储控制装置接收尚未从主存储控制装置传送的数据,并更新二次卷。 然后,主存储控制设备管理由于主副存储控制设备在使用差分位图表向前接收主/次交换命令时发生的主卷访问主卷上的更新的位置。

    Storage system, storage control device and recovery point detection method for storage control device
    53.
    发明申请
    Storage system, storage control device and recovery point detection method for storage control device 有权
    存储系统,存储控制装置和存储控制装置的恢复点检测方法

    公开(公告)号:US20070174354A1

    公开(公告)日:2007-07-26

    申请号:US11369943

    申请日:2006-03-08

    IPC分类号: G06F17/30

    摘要: The present invention supports the selection of an appropriate recovery point, even if a point of recovery is unknown. The user issues a retrieval request from the host by specifying a recovery target file name (path name) and retrieval conditions (key word). The partial restoring processing section restores only a specified file out of the user data volume, and stores it in a temporary restoring area. The retrieval processing section detects a period where the restored file matches the retrieval conditions, and notifies the recovery point candidate list to the host. The user specifies one recovery point out of the recovery point candidates, and requests to restore the user data volume. By this, the user can acquire recovery point candidates based on a slight clue and select an appropriate recovery point.

    摘要翻译: 本发明支持选择适当的恢复点,即使恢复点是未知的。 用户通过指定恢复目标文件名(路径名)和检索条件(关键词)从主机发出检索请求。 部分恢复处理部仅从用户数据卷恢复指定的文件,并将其存储在临时恢复区域中。 检索处理部检测恢复文件与检索条件匹配的期间,并将恢复点候选列表通知主机。 用户从恢复点候选中指定一个恢复点,并请求恢复用户数据卷。 由此,用户可以基于轻微的线索获取恢复点候选,并选择适当的恢复点。

    Method for data protection in disk array systems

    公开(公告)号:US20060294438A1

    公开(公告)日:2006-12-28

    申请号:US11512664

    申请日:2006-08-29

    IPC分类号: G06F11/00

    摘要: A method and a system for implementing the method are disclosed relating to archival storage of information in large numbers of disk units. The reliability of the stored information is checked periodically using data verification operations whose results are saved. These results establish the veracity of the data and enable compliance with various regulatory requirements. The techniques described enable the use of low cost disk drive technology, yet provide high assurance of data veracity. In a typical system, management information storage is provided in which data entries are associated with each of the disk drives to provide information with respect to the condition of the data on that drive and its last verification. The data verification operations are performed on the data during time periods when I/O accesses are not required.

    Storage system for content distribution

    公开(公告)号:US07115919B2

    公开(公告)日:2006-10-03

    申请号:US10104779

    申请日:2002-03-21

    申请人: Shoji Kodama

    发明人: Shoji Kodama

    IPC分类号: G06F17/30

    摘要: A processing system comprises a primary storage system and a plurality of secondary storage systems. The primary storage system is managed by a contents manager that keeps a file system used to make file level I/O accesses to a controller that translates the file access to block I/O to access the magnetic media for the data. The secondary storage systems are available to and accessed by application servers, also using file level I/O. The content manager may change a file or data on the primary storage system and, if so, will also change the file system accordingly. The file system is then made available to the application servers, after the controller transfers changed files to the secondary storage systems using block level I/O.

    Failover and data migration using data replication

    公开(公告)号:US20060179170A1

    公开(公告)日:2006-08-10

    申请号:US11393596

    申请日:2006-03-29

    申请人: Shoji Kodama

    发明人: Shoji Kodama

    IPC分类号: G06F3/00

    摘要: A virtual volume module in a host system provides virtual volume view to user-level and system-level applications executing on the host system. The virtual volume module maps I/O from the applications which are directed to a virtual volume to a first physical volume in a first storage system. When necessary, the virtual volume module can map application I/O's to a second volume in a second storage system. The second storage system replicates data in the first storage system, so that when re-mapping occurs it is transparent to the applications running on the host system.

    Method for partial data reallocation in a storage system
    58.
    发明授权
    Method for partial data reallocation in a storage system 失效
    存储系统中部分数据重新分配的方法

    公开(公告)号:US07032070B2

    公开(公告)日:2006-04-18

    申请号:US10665893

    申请日:2003-09-19

    申请人: Shoji Kodama

    发明人: Shoji Kodama

    IPC分类号: G06F12/00

    摘要: A method of reallocating data among physical disks corresponding to a logical disk is provided. A logical disk is partitioned into a plurality of groups, each group comprising at least one segment on at least one of a first plurality of physical disks corresponding to the logical disk. One group of the plurality of groups is partitioned into a plurality of sub-groups, and, for each sub-group of the plurality of sub-groups but one, the sub-group is copied to at least one segment on at least one of a second plurality of physical disks corresponding to the logical disk.

    摘要翻译: 提供了一种在与逻辑磁盘对应的物理磁盘之间重新分配数据的方法。 逻辑磁盘被划分成多个组,每个组包括对应于逻辑磁盘的第一多个物理磁盘中的至少一个的至少一个段。 所述多个组中的一组被划分为多个子组,并且对于所述多个子组的每个子组而是一个,所述子组被复制到至少一个分段 对应于逻辑盘的第二多个物理磁盘。

    Multiple processor data processing system with mirrored data for distributed access
    59.
    发明授权
    Multiple processor data processing system with mirrored data for distributed access 失效
    具有用于分布式访问的镜像数据的多处理器数据处理系统

    公开(公告)号:US06694406B2

    公开(公告)日:2004-02-17

    申请号:US10374655

    申请日:2003-02-24

    IPC分类号: G06F1200

    摘要: A data storage includes multiple disk units accessible to multiple processors/servers. The multiple disk units include a master disk unit and a one or more data-mirroring disk units. A data-mirroring disk unit is assigned to a corresponding ones of the multiple servers by one of the processors designated as the mount manager. Data is written by the processors to the data storage is written to the master disk unit, and copied by the data storage to the data-mirroring disk units. Data is read by each of the processors from the data-mirroring disk unit assigned to such processor.

    摘要翻译: 数据存储包括可供多个处理器/服务器访问的多个磁盘单元。 多个磁盘单元包括主磁盘单元和一个或多个数据镜像磁盘单元。 通过指定为安装管理器的一个处理器将数据镜像磁盘单元分配给多个服务器中的相应的一个。 数据由处理器写入数据存储器被写入主盘单元,并由数据存储器复制到数据镜像单元。 从分配给这种处理器的数据镜像磁盘单元的每个处理器读取数据。

    Information apparatus
    60.
    发明授权
    Information apparatus 失效
    信息装置

    公开(公告)号:US08700567B2

    公开(公告)日:2014-04-15

    申请号:US13063418

    申请日:2011-02-28

    IPC分类号: G06F7/00 G06F17/00

    CPC分类号: G06F17/30165 G06F17/302

    摘要: The present invention enables a unified way of accessing files generated by application programs configured to store contents in files in different formats, without using a conversion program.A database for holding correspondence between an identifier of a content and a storage position of the content is generated based on a backup catalog generated by a backup server, and contents are accessed by using this database. Contents generated by a plurality of different application programs are accessed in a unified way using a single name space.

    摘要翻译: 本发明使得能够统一地访问由应用程序生成的文件,该应用程序被配置为以不同格式存储文件中的内容,而不使用转换程序。 基于由备份服务器生成的备份目录,生成用于保存内容的标识符和内容的存储位置之间的对应关系的数据库,并且通过使用该数据库访问内容。 使用单个名称空间以统一的方式访问由多个不同应用程序生成的内容。