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1. 发明授权

US07680795B2 Shared disk clones 失效
标题翻译：共享磁盘克隆
公开(公告)号：US07680795B2
公开(公告)日：2010-03-16
申请号：US11687494
申请日：2007-03-16
申请人： Scott David Lashley , Karl Ostner , Clarence Madison Pruet, III , Jinming Xiao
发明人： Scott David Lashley , Karl Ostner , Clarence Madison Pruet, III , Jinming Xiao
IPC分类号： G06F7/00 , G06F17/30 , G06F12/00
CPC分类号： G06F11/2041 , G06F11/2046 , G06F11/2048 , G06F11/2056 , G06F11/2097 , Y10S707/99939
摘要： Embodiments of the invention generally relate to data processing systems and more particularly to high availability data processing systems. A primary server may share a storage device with one or more clone systems. Each clone generally replicates the state of the primary server, but relies on the same disk-based storage as the primary server. Thus, the clone systems may provide a shadow of the primary server, ready to take over should the primary server fail. The clone systems may access a log file that includes entries reflecting the actions performed by the primary system. The primary server may flush entries from a log buffer maintained on the primary server to a log file stored on the shared disk-based storage. The primary server may also send a log sequence number to the clone systems, and the clone systems periodically transmit a log sequence number back to the primary server indicating how far through the log file a clone system has progressed.
摘要翻译：本发明的实施例一般涉及数据处理系统，更具体地涉及高可用性数据处理系统。主服务器可以与一个或多个克隆系统共享存储设备。每个克隆通常复制主服务器的状态，但依赖于与主服务器相同的基于磁盘的存储。因此，克隆系统可以提供主服务器的阴影，如果主服务器发生故障，则可以接管。克隆系统可以访问日志文件，其中包含反映主系统执行的操作的条目。主服务器可以将从主服务器上维护的日志缓冲区中的条目刷新到存储在基于共享磁盘的存储上的日志文件。主服务器还可以向克隆系统发送日志序列号，并且克隆系统周期性地将日志序列号发送回主服务器，指示克隆系统的日志文件有多远。

2. 发明申请

US20080228835A1 SHARED DISK CLONES 失效
标题翻译：共享磁盘克隆
公开(公告)号：US20080228835A1
公开(公告)日：2008-09-18
申请号：US11687494
申请日：2007-03-16
申请人： Scott David Lashley , Karl Ostner , Clarence Madison Pruet , Jinming Xiao
发明人： Scott David Lashley , Karl Ostner , Clarence Madison Pruet , Jinming Xiao
IPC分类号： G06F17/30
CPC分类号： G06F11/2041 , G06F11/2046 , G06F11/2048 , G06F11/2056 , G06F11/2097 , Y10S707/99939
摘要： Embodiments of the invention generally relate to data processing systems and more particularly to high availability data processing systems. A primary server may share a storage device with one or more clone systems. Each clone generally replicates the state of the primary server, but relies on the same disk-based storage as the primary server. Thus, the clone systems may provide a shadow of the primary server, ready to take over should the primary server fail. The clone systems may access a log file that includes entries reflecting the actions performed by the primary system. The primary server may flush entries from a log buffer maintained on the primary server to a log file stored on the shared disk-based storage. The primary server may also send a log sequence number to the clone systems, and the clone systems periodically transmit a log sequence number back to the primary server indicating how far through the log file a clone system has progressed.
摘要翻译：本发明的实施例一般涉及数据处理系统，更具体地涉及高可用性数据处理系统。主服务器可以与一个或多个克隆系统共享存储设备。每个克隆通常复制主服务器的状态，但依赖于与主服务器相同的基于磁盘的存储。因此，克隆系统可以提供主服务器的阴影，如果主服务器发生故障，则可以接管。克隆系统可以访问日志文件，其中包含反映主系统执行的操作的条目。主服务器可以将从主服务器上维护的日志缓冲区中的条目刷新到存储在基于共享磁盘的存储上的日志文件。主服务器还可以向克隆系统发送日志序列号，并且克隆系统周期性地将日志序列号发送回主服务器，指示克隆系统的日志文件有多远。

3. 发明申请

US20080077636A1 DATABASE BACKUP SYSTEM USING DATA AND USER-DEFINED ROUTINES REPLICATORS FOR MAINTAINING A COPY OF DATABASE ON A SECONDARY SERVER 有权
标题翻译：使用数据的数据库备份系统和用户定义的程序替换器维护二次服务器上的数据库副本
公开(公告)号：US20080077636A1
公开(公告)日：2008-03-27
申请号：US11931007
申请日：2007-10-31
申请人： Ajay Gupta , Karl Ostner
发明人： Ajay Gupta , Karl Ostner
IPC分类号： G06F17/30
CPC分类号： G06F17/30333 , G06F11/2074 , G06F17/30327 , G06F2201/855 , Y10S707/99953 , Y10S707/99955
摘要： In a database system having a primary server side (10) and a secondary server side (30), a high availability data replicator (26, 46) transfers log entries from the primary side (10) to the secondary side (30) and replays the transferred log entries to synchronize the secondary side (30) with the primary side (10). R-tree index transfer threads (54, 56) copy user-defined routines, the user defined index, and index databases deployed on the primary server side (10) to the secondary server side (30) and deploy the copied user-defined routines, reconstruct the user-defined index, and copy data pages on the secondary side (30) to make the user-defined index consistent and usable on the secondary side (30).
摘要翻译：在具有主服务器侧（10）和次服务器侧（30）的数据库系统中，高可用性数据复制器（26,46）将日志条目从初级侧（10）传送到次级侧（30），并且重播传输的日志条目将次级侧（30）与初级侧（10）同步。 R-tree索引传输线程（54,56）将用户定义的例程，用户定义的索引和部署在主服务器端（10）上的索引数据库复制到辅助服务器端（30）并部署复制的用户定义例程，重建用户定义的索引，并复制次级侧的数据页面（30），使用户定义的索引在次级侧保持一致和可用（30）。

4. 发明授权

US07383293B2 Database backup system using data and user-defined routines replicators for maintaining a copy of database on a secondary server 有权
标题翻译：数据库备份系统使用数据和用户定义的例程复制器来维护辅助服务器上的数据库副本
公开(公告)号：US07383293B2
公开(公告)日：2008-06-03
申请号：US11931007
申请日：2007-10-31
申请人： Ajay Kumar Gupta , Karl Ostner
发明人： Ajay Kumar Gupta , Karl Ostner
IPC分类号： G06F17/30
CPC分类号： G06F17/30333 , G06F11/2074 , G06F17/30327 , G06F2201/855 , Y10S707/99953 , Y10S707/99955
摘要： In a database system having a primary server side (10) and a secondary server side (30), a high availability data replicator (26, 46) transfers log entries from the primary side (10) to the secondary side (30) and replays the transferred log entries to synchronize the secondary side (30) with the primary side (10). R-tree index transfer threads (54, 56) copy user-defined routines, the user defined index, and index databases deployed on the primary server side (10) to the secondary server side (30) and deploy the copied user-defined routines, reconstruct the user-defined index, and copy data pages on the secondary side (30) to make the user-defined index consistent and usable on the secondary side (30).
摘要翻译：在具有主服务器侧（10）和次服务器侧（30）的数据库系统中，高可用性数据复制器（26,46）将日志条目从初级侧（10）传送到次级侧（30），并且重播传输的日志条目将次级侧（30）与初级侧（10）同步。 R-tree索引传输线程（54,56）将用户定义的例程，用户定义的索引和部署在主服务器端（10）上的索引数据库复制到辅助服务器端（30）并部署复制的用户定义例程，重建用户定义的索引，并复制次级侧的数据页面（30），使用户定义的索引在次级侧保持一致和可用（30）。

5. 发明授权

US07330859B2 Database backup system using data and user-defined routines replicators for maintaining a copy of database on a secondary server 失效
公开(公告)号：US07330859B2
公开(公告)日：2008-02-12
申请号：US10659628
申请日：2003-09-10
申请人： Ajay K. Gupta , Karl Ostner
发明人： Ajay K. Gupta , Karl Ostner
IPC分类号： G06F17/30
CPC分类号： G06F17/30333 , G06F11/2074 , G06F17/30327 , G06F2201/855 , Y10S707/99953 , Y10S707/99955
摘要： In a database system having a primary server side (10) and a secondary server side (30), a high availability data replicator (26, 46) transfers log entries from the primary side (10) to the secondary side (30) and replays the transferred log entries to synchronize the secondary side (30) with the primary side (10). R-tree index transfer threads (54, 56) copy user-defined routines, the user defined index, and index databases deployed on the primary server side (10) to the secondary server side (30) and deploy the copied user-defined routines, reconstruct the user-defined index, and copy data pages on the secondary side (30) to make the user-defined index consistent and usable on the secondary side (30).

6. 发明申请

US20050055445A1 High availability data replication of an R-tree index 失效
标题翻译： R-tree索引的高可用性数据复制
公开(公告)号：US20050055445A1
公开(公告)日：2005-03-10
申请号：US10659628
申请日：2003-09-10
申请人： Ajay Gupta , Karl Ostner
发明人： Ajay Gupta , Karl Ostner
IPC分类号： G06F11/20 , G06F17/30 , G06F15/173 , G06F12/00
CPC分类号： G06F17/30333 , G06F11/2074 , G06F17/30327 , G06F2201/855 , Y10S707/99953 , Y10S707/99955
摘要： In a database system having a primary server side (10) and a secondary server side (30), a high availability data replicator (26, 46) transfers log entries from the primary side (10) to the secondary side (30) and replays the transferred log entries to synchronize the secondary side (30) with the primary side (10). R-tree index transfer threads (54, 56) copy user-defined routines, the user defined index, and index databases deployed on the primary server side (10) to the secondary server side (30) and deploy the copied user-defined routines, reconstruct the user-defined index, and copy data pages on the secondary side (30) to make the user-defined index consistent and usable on the secondary side (30).
摘要翻译：在具有主服务器侧（10）和次服务器侧（30）的数据库系统中，高可用性数据复制器（26,46）将日志条目从初级侧（10）传送到次级侧（30），并且重播传输的日志条目将次级侧（30）与初级侧（10）同步。 R-tree索引传输线程（54,56）将用户定义的例程，用户定义的索引和部署在主服务器端（10）上的索引数据库复制到辅助服务器端（30）并部署复制的用户定义例程，重建用户定义的索引，并复制次级侧的数据页面（30），使用户定义的索引在次级侧保持一致和可用（30）。

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