公开(公告)号：US07822717B2

公开(公告)日：2010-10-26

申请号：US11348982

申请日：2006-02-07

申请人： Aditya Kapoor ,  Wenlu Ma ,  Craig G. Duncan

发明人： Aditya Kapoor ,  Wenlu Ma ,  Craig G. Duncan

IPC分类号： G06F7/00 ,  G06F17/00

CPC分类号： G06F11/1471 ,  G06F11/1469 ,  G06F2201/80

摘要： This disclosure concerns systems and methods for restoring data. In one example, a method for restoring a database to a particular state begins when a query is sent to a backup server requesting a list of all backup versions for the database. Next, the list of all backup versions is received from the backup server. Then, the time t0 at which the most recent backup version in the list was created is determined. Next, a point in time t2 subsequent to time t0 is identified. Finally, a command set that, when executed, functions to restore the database to the state that existed at time t2 is automatically formulated.

摘要翻译： 本公开涉及恢复数据的系统和方法。 在一个示例中，将数据库恢复到特定状态的方法开始于将查询发送到请求数据库的所有备份版本列表的备份服务器。 接下来，从备份服务器接收到所有备份版本的列表。 然后，确定创建列表中最新备份版本的时间t0。 接下来，识别在时间t0之后的时间点t2。 最后，一个命令设置，当被执行时，将将数据库恢复到在时刻t2存在的状态的功能被自动表述。

公开(公告)号：US07404103B2

公开(公告)日：2008-07-22

申请号：US11651971

申请日：2007-01-09

申请人： Mu Chai ,  Craig Duncan ,  Aditya Kapoor ,  Wenlu Ma

发明人： Mu Chai ,  Craig Duncan ,  Aditya Kapoor ,  Wenlu Ma

IPC分类号： G06F11/00

CPC分类号： G06F11/1469 ,  G06F11/1464 ,  G06F11/2071 ,  G06F11/2082 ,  G06F2201/80

摘要： In a network that includes a first database located on a first client and a second database located on a second client, a user or administrator initiates a restore operation. A dynamic mirror relationship existing between the first and second clients is terminated and a backup version of a database which the user or administrator wishes to recreate is identified. One of the first or second clients receives information concerning the location of the backup version of the database, as well as the role designation of the database at the time the backup operation was performed, from a restore server. The backup version of the database is retrieved from the storage location and recreated on each of the first and second clients, and the dynamic mirror relationship is reestablished between the first and second clients.

摘要翻译： 在包括位于第一客户端上的第一数据库和位于第二客户端上的第二数据库的网络中，用户或管理员启动还原操作。 终止在第一和第二客户端之间存在的动态镜像关系，并且识别用户或管理员希望重新创建的数据库的备份版本。 第一或第二客户端之一从恢复服务器接收关于数据库的备份版本的位置的信息以及在执行备份操作时数据库的角色指定。 从存储位置检索数据库的备份版本，并在第一和第二客户机中的每一个上重新创建，并且在第一和第二客户端之间重新建立动态镜像关系。

公开(公告)号：US20070156781A1

公开(公告)日：2007-07-05

申请号：US11326035

申请日：2006-01-05

申请人： Aditya Kapoor ,  Wenlu Ma ,  Craig Duncan

发明人： Aditya Kapoor ,  Wenlu Ma ,  Craig Duncan

IPC分类号： G06F17/30

CPC分类号： G06F11/2094 ,  G06F11/1458 ,  G06F17/30306

摘要： This disclosure is concerned with systems and methods for backing up data. In one example, a method for detecting failover in a database mirroring system that begins when a determination is made as to the time of the most recent backup of the principal database. Next, the time of the most recent backup of the mirror database is determined. Then, the time of the most recent backup of the principal database is compared to the time of the most recent backup of the mirror database to determine if the principal database was backed up most recently. Finally, if the mirror database is the database that was backed up most recently, it is established that failover has occurred.

摘要翻译： 本公开涉及用于备份数据的系统和方法。 在一个示例中，一种用于检测数据库镜像系统中的故障切换的方法，该方法在对主体数据库的最新备份的时间进行确定时开始。 接下来，确定镜像数据库的最新备份的时间。 然后，将主体数据库的最新备份时间与镜像数据库的最新备份时间进行比较，以确定最近是否备份了主体数据库。 最后，如果镜像数据库是最近备份的数据库，则建立了故障转移已发生。

公开(公告)号：US07210060B2

公开(公告)日：2007-04-24

申请号：US11080047

申请日：2005-03-15

申请人： Mu Chai ,  Craig Duncan ,  Aditya Kapoor ,  Wenlu Ma

发明人： Mu Chai ,  Craig Duncan ,  Aditya Kapoor ,  Wenlu Ma

IPC分类号： G06F11/00

CPC分类号： G06F11/1469 ,  G06F11/1464 ,  G06F11/2071 ,  G06F11/2082 ,  G06F2201/80

摘要： In a network that includes a first database located on a first client and a second database located on a second client, a user or administrator initiates a restore operation. A dynamic mirror relationship existing between the first and second clients is terminated and a backup version of a database which the user or administrator wishes to recreate is identified. One of the first or second clients receives information concerning the location of the backup version of the database, as well as the role designation of the database at the time the backup operation was performed, from a restore server. The backup version of the database is retrieved from the storage location and recreated on each of the first and second clients, and the dynamic mirror relationship is reestablished between the first and second clients.

摘要翻译： 在包括位于第一客户端上的第一数据库和位于第二客户端上的第二数据库的网络中，用户或管理员启动还原操作。 终止在第一和第二客户端之间存在的动态镜像关系，并且识别用户或管理员希望重新创建的数据库的备份版本。 第一或第二客户端之一从恢复服务器接收关于数据库的备份版本的位置的信息以及在执行备份操作时数据库的角色指定。 从存储位置检索数据库的备份版本，并在第一和第二客户机中的每一个上重新创建，并且在第一和第二客户端之间重新建立动态镜像关系。

公开(公告)号：US20060149997A1

公开(公告)日：2006-07-06

申请号：US11080047

申请日：2005-03-15

申请人： Mu Chai ,  Craig Duncan ,  Aditya Kapoor ,  Wenlu Ma

发明人： Mu Chai ,  Craig Duncan ,  Aditya Kapoor ,  Wenlu Ma

IPC分类号： G06F11/00

CPC分类号： G06F11/1469 ,  G06F11/1464 ,  G06F11/2071 ,  G06F11/2082 ,  G06F2201/80

摘要： In a network that includes a first database located on a first client and a second database located on a second client, a user or administrator initiates a restore operation. A dynamic mirror relationship existing between the first and second clients is terminated and a backup version of a database which the user or administrator wishes to recreate is identified. One of the first or second clients receives information concerning the location of the backup version of the database, as well as the role designation of the database at the time the backup operation was performed, from a restore server. The backup version of the database is retrieved from the storage location and recreated on each of the first and second clients, and the dynamic mirror relationship is reestablished between the first and second clients.

摘要翻译： 在包括位于第一客户端上的第一数据库和位于第二客户端上的第二数据库的网络中，用户或管理员启动还原操作。 终止在第一和第二客户端之间存在的动态镜像关系，并且识别用户或管理员希望重新创建的数据库的备份版本。 第一或第二客户端之一从恢复服务器接收关于数据库的备份版本的位置的信息以及在执行备份操作时数据库的角色指定。 从存储位置检索数据库的备份版本，并在第一和第二客户机中的每一个上重新创建，并且在第一和第二客户端之间重新建立动态镜像关系。