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    • 42. 发明授权
    • Data duplication method in a disaster recovery system
    • 灾难恢复系统中的数据复制方法
    • US07529964B2
    • 2009-05-05
    • US10930832
    • 2004-09-01
    • Yoshio SuzukiNobuo KawamuraKota YamaguchiSatoru WatanabeShinji Fujiwara
    • Yoshio SuzukiNobuo KawamuraKota YamaguchiSatoru WatanabeShinji Fujiwara
    • G06F11/00
    • G06F11/2097G06F11/1471
    • A recovery of a secondary DB is executed by a log including a update difference of a primary DB, and a command is executed by adding the command to the log and analyzing the log by a secondary site. An operation command execution in the secondary site is applied to the DB having the consistency in the transaction at the same timing as a primary site or an intended timing, by transferring and executing the operation command via the log. In the case that the command is constituted by a snap shot generating instruction, a plurality of volumes of a mirror set forming a secondary storage apparatus are set to a pair state and the secondary DB is written in each of the volumes and synchronized, and the mirror set is set to a split state after the synchronization is finished, whereby a secondary DB is stored.
    • 辅助DB的恢复由包括主DB的更新差异的日志执行,并且通过将命令添加到日志并通过辅助站点分析日志来执行命令。 通过经由日志传送和执行操作命令,在辅助站点中的操作命令执行以与主站点相同的定时或预期定时被应用于事务中具有一致性的DB。 在命令由快照生成指令构成的情况下,形成副存储装置的多个镜像组的集合被设置为成对状态,并且辅助DB被写入每个卷并同步,并且 镜像集在同步完成后设置为分割状态,从而存储辅助数据块。
    • 45. 发明授权
    • Backup method, backup system, disk controller and backup program
    • 备份方式,备份系统,磁盘控制器和备份程序
    • US07194675B2
    • 2007-03-20
    • US10910580
    • 2004-08-04
    • Nobuo KawamuraYoshio SuzukiSatoru Watanabe
    • Nobuo KawamuraYoshio SuzukiSatoru Watanabe
    • G06F11/16G06F11/24
    • H04L67/1095G06F11/1456G06F11/1471G06F11/2069G06F11/2082H04L67/1097
    • A backup system includes a first storage device having first storage areas in which an update log of recorded data is stored; a second storage device having second storage areas which are paired with the first storage areas respectively and in which a copy of the update log is stored; and a disk controller. The state of a pair of first and second storage areas is changed from a non-pair state in which the update log is not stored in the pair of first and second storage areas to a pair state. The state of another pair of first and second storage areas is changed from a pair state to a non-pair state. The disk controller includes first and second disk controllers for controlling the first and second storage devices, respectively. The changes of pair/non-pair states are executed by the first disk controller.
    • 备用系统包括具有第一存储区域的第一存储装置,其中存储有记录数据的更新日志; 第二存储装置具有分别与第一存储区域配对的第二存储区域,并且存储更新日志的副本; 和磁盘控制器。 一对第一和第二存储区域的状态从更新日志未被存储在一对第一和第二存储区域中的非对状态改变为对状态。 另一对第一和第二存储区域的状态从一对状态变为非对状态。 磁盘控制器包括分别用于控制第一和第二存储设备的第一和第二磁盘控制器。 对/非对状态的变化由第一磁盘控制器执行。
    • 46. 发明授权
    • Data backup system and method for the same
    • 数据备份系统和方法相同
    • US07120770B2
    • 2006-10-10
    • US10849006
    • 2004-05-20
    • Satoru WatanabeYoshio Suzuki
    • Satoru WatanabeYoshio Suzuki
    • G06F12/16
    • G06F11/2074Y10S707/99952Y10S707/99953
    • It is an object to eliminate possibilities in which newest backup data cannot be created owing to overwriting of data update records when performing backup using a duplicating system. The data backup system, including an active system as a computer system of a backup source and a standby system as a computer system of a backup destination, is provided in such that a communication settings judging section is provided in the standby system for actively changing settings of a data communicating section for transferring data update records to thereby prevent overwriting of portions among data update records that are necessary for creating newest backup data.
    • 由于在使用复制系统执行备份时覆盖数据更新记录,所以无法创建最新备份数据的可能性是一个对象。 提供数据备份系统,包括作为备份源的计算机系统的活动系统和作为备用目的地的计算机系统的备用系统,使得在备用系统中提供通信设置判断部分以主动改变设置 用于传送数据更新记录的数据通信部分,从而防止覆盖创建最新备份数据所需的数据更新记录中的部分。
    • 49. 发明申请
    • Disaster recovery system suitable for database system
    • 灾难恢复系统适用于数据库系统
    • US20050283504A1
    • 2005-12-22
    • US10989398
    • 2004-11-17
    • Yoshio SuzukiNobuo KawamuraKota YamaguchiShinji FujiwaraSatoru WatanabeMasaru Kitsuregawa
    • Yoshio SuzukiNobuo KawamuraKota YamaguchiShinji FujiwaraSatoru WatanabeMasaru Kitsuregawa
    • G06F12/00
    • G06F11/2028G06F11/2025G06F11/2097
    • To reduce operational and management costs during normal operations while recovering a database without loss and maintaining on-line performance on a site. A first system includes a primary storage system (103) that stores a DB (107) and a main computer (100) that executes a primary DBMS (101), which provides a DB. A second system includes a secondary (113) that receives from the primary storage system (103) a copy of a log, which shows update differences of the DB (107), and stores a secondary DBMS (117), and a subset (500) that recovers the secondary DB (117) according to the log that is copied from the primary storage system (103). When a failure occurs in the first system, the first system is switched to the second system. A second computer (110) that executes a second DBMS (111) is added to the second system, and the secondary DB (117) that is recovered or is being recovered in the subset (500) is taken over to the second computer (110).
    • 在正常运行期间降低运营和管理成本,同时在不丢失数据库的情况下恢复数据库并维护站点上的在线性能。 第一系统包括存储DB(107)的主存储系统(103)和执行提供DB的主DBMS(101)的主计算机(100)。 第二系统包括次级(113),其从主存储系统(103)接收日志的副本,其显示DB(107)的更新差异,并存储辅助DBMS(117)和子集(500) ),其根据从主存储系统(103)复制的日志恢复辅助DB(117)。 当第一系统发生故障时,第一个系统切换到第二个系统。 执行第二DBMS(111)的第二计算机(110)被添加到第二系统,并且在子集(500)中恢复或正在恢复的辅助DB(117)被接管到第二计算机(110) )。