公开(公告)号：US20050050392A1

公开(公告)日：2005-03-03

申请号：US10834979

申请日：2004-04-30

申请人： Tsunehiko Baba ,  Shinji Fujiwara ,  Yoshio Suzuki

发明人： Tsunehiko Baba ,  Shinji Fujiwara ,  Yoshio Suzuki

IPC分类号： G06F11/20 ,  G06F11/00 ,  G06F12/00

CPC分类号： G06F11/2023 ,  G06F11/2038 ,  G06F11/2069 ,  G06F11/2084

摘要： A high availability database system, subject to a failure causing data corruption in the active server system, may recover valid data prior to the corruption, and use the protected and recovered data to effect a failover. At the time T1 when a stand-by computer system detects the occurrence of a failure, a pair split is done to the data area to protect the data area time T0, just before the occurrence of the failure, and another pair split is done to the log area at the time, where the log area is corrupted or a time T3, where the failover is to take effect without corrupting data, to protect the log area containing data at a given time between time TO and time T3. By using the data and log areas thus protected, the stand-by computer system may take over valid data and log areas of the given time to perform a failover.

摘要翻译： 高可用性数据库系统受到在活动服务器系统中导致数据损坏的故障的影响，可能会在损坏之前恢复有效数据，并使用受保护和恢复的数据实现故障切换。 在备用计算机系统检测到故障发生的时刻T1，在数据区域进行对分割，以在故障发生之前保护数据区域时间T0，并且另一对分割完成 日志区域损坏的日志区域，或时间T3，故障转移将在不破坏数据的情况下生效，以保护在时间T0到时间T3之间的给定时间内包含数据的日志区域。 通过使用受保护的数据和日志区域，备用计算机系统可以接管给定时间的有效数据和日志区域以执行故障切换。

公开(公告)号：US20070226276A1

公开(公告)日：2007-09-27

申请号：US11647201

申请日：2006-12-29

申请人： Yoshio Suzuki ,  Shinji Fujiwara ,  Tsunehiko Baba

发明人： Yoshio Suzuki ,  Shinji Fujiwara ,  Tsunehiko Baba

IPC分类号： G06F17/30

CPC分类号： G06F11/2097 ,  G06F11/1474 ,  G06F11/2038 ,  Y10S707/959 ,  Y10S707/99952 ,  Y10S707/99953 ,  Y10S707/99955

摘要： A method for duplicating transactions in a disaster recover system is disclosed. In this method, transactions and queries input to a primary database system are copied to a secondary database system and both database systems execute the queries and save the results permanently to each database, thereby maintaining duplicated data. When executing a query on the primary database system, if the query is a commit, the primary system simultaneously copies uncopied queries placed in a queue to the secondary database system and then executes the query. By using this processing procedure, the invention realizes a disaster recovery system which carries out copying transactions from one site to another site without losing the transactions, while reducing the influence of copy operation on the transaction processing performance.

摘要翻译： 公开了一种在灾难恢复系统中复制事务的方法。 在这种方法中，将输入到主数据库系统的事务和查询复制到辅助数据库系统，并且两个数据库系统都执行查询并将结果永久保存到每个数据库，从而保留重复的数据。 当在主数据库系统上执行查询时，如果查询是提交，则主系统会同时将放入队列中的未查找的查询复制到辅助数据库系统，然后执行查询。 通过使用该处理过程，本发明实现了在不丢失事务的情况下执行从一个站点到另一站点的复制事务的灾难恢复系统，同时减少了复制操作对事务处理性能的影响。

公开(公告)号：US07181479B2

公开(公告)日：2007-02-20

申请号：US10637556

申请日：2003-08-11

申请人： Yoshio Suzuki ,  Shinji Fujiwara ,  Tsunehiko Baba

发明人： Yoshio Suzuki ,  Shinji Fujiwara ,  Tsunehiko Baba

IPC分类号： G06F17/30

CPC分类号： G06F11/2097 ,  G06F11/1474 ,  G06F11/2038 ,  Y10S707/959 ,  Y10S707/99952 ,  Y10S707/99953 ,  Y10S707/99955

摘要： A method for duplicating transactions in a disaster recover system is disclosed. In this method, transactions and queries input to a primary database system are copied to a secondary database system and both database systems execute the queries and save the results permanently to each database, thereby maintaining duplicated data. When executing a query on the primary database system, if the query is a commit, the primary system simultaneously copies uncopied queries placed in a queue to the secondary database system and then executes the query. By using this processing procedure, the invention realizes a disaster recovery system which carries out copying transactions from one site to another site without losing the transactions, while reducing the influence of copy operation on the transaction processing performance.

公开(公告)号：US07117393B2

公开(公告)日：2006-10-03

申请号：US10834979

申请日：2004-04-30

申请人： Tsunehiko Baba ,  Shinji Fujiwara ,  Yoshio Suzuki

发明人： Tsunehiko Baba ,  Shinji Fujiwara ,  Yoshio Suzuki

IPC分类号： G06F11/00

CPC分类号： G06F11/2023 ,  G06F11/2038 ,  G06F11/2069 ,  G06F11/2084

摘要： A high availability database system, subject to a failure causing data corruption in the active server system, may recover valid data prior to the corruption, and use the protected and recovered data to effect a failover. At the time when a stand-by computer system detects occurrence of a failure, a pair split is done to the data area to protect the data area data of time T0, just before the occurrence of the failure, and another pair split is done to the log area at the time, where the log area is corrupted or a time T3, where the failover is to take effect without corrupting data, to protect the log area containing data at a given time between time T0 and time T3. By using the data and log areas thus protected, the stand-by computer system may take over valid data and log areas to perform a failover.

摘要翻译： 高可用性数据库系统受到在活动服务器系统中导致数据损坏的故障的影响，可能会在损坏之前恢复有效数据，并使用受保护和恢复的数据实现故障切换。 当备用计算机系统检测到故障发生时，对数据区域进行对分割，以在发生故障之前保护时间T 0的数据区域数据，并且另一对分裂完成 到日志区域被破坏的日志区域或时间T 3，其中故障转移将在不破坏数据的情况下生效，以在时间T 0和时间T 3之间的给定时间保护包含数据的日志区域 。 通过使用受保护的数据和日志区域，备用计算机系统可以接管有效的数据和日志区域以执行故障转移。

公开(公告)号：US07593974B2

公开(公告)日：2009-09-22

申请号：US11647201

申请日：2006-12-29

申请人： Yoshio Suzuki ,  Shinji Fujiwara ,  Tsunehiko Baba

发明人： Yoshio Suzuki ,  Shinji Fujiwara ,  Tsunehiko Baba

IPC分类号： G06F17/30

CPC分类号： G06F11/2097 ,  G06F11/1474 ,  G06F11/2038 ,  Y10S707/959 ,  Y10S707/99952 ,  Y10S707/99953 ,  Y10S707/99955

摘要： A method for duplicating transactions in a disaster recover system is disclosed. In this method, transactions and queries input to a primary database system are copied to a secondary database system and both database systems execute the queries and save the results permanently to each database, thereby maintaining duplicated data. When executing a query on the primary database system, if the query is a commit, the primary system simultaneously copies uncopied queries placed in a queue to the secondary database system and then executes the query. By using this processing procedure, the invention realizes a disaster recovery system which carries out copying transactions from one site to another site without losing the transactions, while reducing the influence of copy operation on the transaction processing performance.

摘要翻译： 公开了一种在灾难恢复系统中复制事务的方法。 在这种方法中，将输入到主数据库系统的事务和查询复制到辅助数据库系统，并且两个数据库系统都执行查询并将结果永久保存到每个数据库，从而保留重复的数据。 当在主数据库系统上执行查询时，如果查询是提交，则主系统会同时将放入队列中的未查找的查询复制到辅助数据库系统，然后执行查询。 通过使用该处理过程，本发明实现了在不丢失事务的情况下执行从一个站点到另一站点的复制事务的灾难恢复系统，同时减少了复制操作对事务处理性能的影响。

公开(公告)号：US20050198552A1

公开(公告)日：2005-09-08

申请号：US10942873

申请日：2004-09-17

申请人： Tsunehiko Baba ,  Shinji Fujiwara

发明人： Tsunehiko Baba ,  Shinji Fujiwara

IPC分类号： G06F11/20 ,  G06F11/00 ,  G06F15/177

CPC分类号： G06F11/2046 ,  G06F11/2023 ,  G06F11/203 ,  G06F11/2041

摘要： In a high available clustered computer system, a standby computer starts up takeover preparation procedures at a time when occurrence of a failure is watched in an active computer and failover procedures will be started up from the takeover preparation completion status when the failure is detected in the active computer. Thus, speeding up of failover preparation procedures is realized. With such arrangement, it is possible to realize failover procedures by the hot-standby procedures when a failure occurs in an active computer.

摘要翻译： 在高可用的集群计算机系统中，备用计算机在活动计算机中观察到发生故障时启动接管准备程序，并且当检测到故障时，将从接管准备完成状态启动故障转移过程 活动电脑 因此，实现了故障切换准备过程的加速。 通过这样的安排，当在活动计算机中发生故障时，可以通过热备用程序来实现故障切换过程。

公开(公告)号：US07305578B2

公开(公告)日：2007-12-04

申请号：US10942873

申请日：2004-09-17

申请人： Tsunehiko Baba ,  Shinji Fujiwara

发明人： Tsunehiko Baba ,  Shinji Fujiwara

IPC分类号： G06F11/00

CPC分类号： G06F11/2046 ,  G06F11/2023 ,  G06F11/203 ,  G06F11/2041

摘要： In a high available clustered computer system, a standby computer starts up takeover preparation procedures at a time when occurrence of a failure is watched in an active computer and failover procedures will be started up from the takeover preparation completion status when the failure is detected in the active computer. Thus, speeding up of failover preparation procedures is realized.With such arrangement, it is possible to realize failover procedures by the hot-standby procedures when a failure occurs in an active computer.

摘要翻译： 在高可用的集群计算机系统中，备用计算机在活动计算机中观察到发生故障时启动接管准备程序，并且当检测到故障时，将从接管准备完成状态启动故障转移过程 活动电脑 因此，实现了故障切换准备过程的加速。

公开(公告)号：US08396830B2

公开(公告)日：2013-03-12

申请号：US12003271

申请日：2007-12-21

申请人： Atsushi Sutoh ,  Tsunehiko Baba

发明人： Atsushi Sutoh ,  Tsunehiko Baba

IPC分类号： G06F7/00 ,  G06F17/00

CPC分类号： G06F17/30581 ,  G06F11/1471 ,  G06F11/2023 ,  G06F11/2035 ,  G06F11/2046 ,  G06F2201/80

摘要： An application processing system including a database server and a storage device which is connected with a standby application processing system including a secondary database server and a secondary storage device to continue to carry out application processing in the case of a fault, disaster, etc. or for maintenance. The storage device of the application processing system issues a log disk update request to the secondary database server of the standby system to update a log disk of the standby system and thereby create a duplicate of the log disk for the DBMS of the application processing system. This allows the DBMS of the standby system to roll forward the log data in the duplicated log to update duplicated data on the secondary storage device.

摘要翻译： 一种包括数据库服务器和存储装置的应用处理系统，其与包括次数据库服务器和辅助存储装置的备用应用处理系统连接，以在故障，灾难等情况下继续执行应用处理， 用于维护。 应用处理系统的存储设备向备用系统的辅助数据库服务器发出日志磁盘更新请求，以更新备用系统的日志磁盘，从而为应用处理系统的DBMS创建日志磁盘的副本。 这允许备用系统的DBMS在重复日志中翻转日志数据，以更新副存储设备上的重复数据。

公开(公告)号：US07937376B2

公开(公告)日：2011-05-03

申请号：US11504076

申请日：2006-08-15

申请人： Tsunehiko Baba ,  Norihiro Hara

发明人： Tsunehiko Baba ,  Norihiro Hara

IPC分类号： G06F7/00 ,  G06F17/00

CPC分类号： G06F17/30575

摘要： Provided is a method of changing the configuration of a shared-nothing database system without shutting down the system. The configuration changing method for a shared-nothing database system includes plural database servers, a storage which provides data areas to the database servers, and a management server which has a database management system and divides a transaction to allocate pieces of the transaction to the database servers, and the configuration changing method allows no two of the database servers to access the same data area. The configuration changing method changes the configurations of the database servers by specifying which data area is to be reallocated, judging whether or not the specified data area can be reallocated, and reallocating the specified data area without shutting down the database management system when it is judged that the specified data area can be reallocated.

摘要翻译： 提供了一种在不关闭系统的情况下更改无共享数据库系统的配置的方法。 无共享数据库系统的配置更改方法包括多个数据库服务器，向数据库服务器提供数据区域的存储器以及具有数据库管理系统并分配事务以将数据分配给数据库的管理服务器 服务器和配置更改方法允许任何两个数据库服务器访问相同的数据区域。 配置更改方法通过指定要重新分配哪个数据区域来更改数据库服务器的配置，判断是否可以重新分配指定的数据区域，并在判断数据库管理系统时重新分配指定的数据区，而不关闭数据库管理系统 可以重新分配指定的数据区域。

公开(公告)号：US20100017643A1

公开(公告)日：2010-01-21

申请号：US12585734

申请日：2009-09-23

申请人： Tsunehiko Baba ,  Yuji Tsushima ,  Toshiomi Moriki

发明人： Tsunehiko Baba ,  Yuji Tsushima ,  Toshiomi Moriki

IPC分类号： G06F11/14

CPC分类号： G06F11/2048 ,  G06F11/0712 ,  G06F11/0757 ,  G06F11/1482 ,  G06F11/1484 ,  G06F11/2028 ,  G06F11/2097 ,  G06F2201/815

摘要： Provided is a failover method for a cluster system for realizing smooth failover of the guest OS's, even when there are many guest OS's, while reducing consumption of computer resources of a server. Smooth failover is realized by preventing competition during failover even when the number of guest OS's is increased. In a cluster configuration in which a slave/master cluster program is operated in a guest OS/host OS, the master cluster program (510) collects and transmits heartbeats of the slave cluster program, thereby realizing failure monitoring through the certain amount of heartbeats without depending on the number of guest OS's. Further, when the master cluster program monitors failures of the slave cluster program of its own computer to find a normal operation of the guest OS, the amount of communication through heartbeats is reduced by eliminating the necessity of communication to a standby system slave cluster program.

摘要翻译： 提供了一种集群系统的故障转移方法，即使客户操作系统有很多客户操作系统也能实现客户操作系统的平滑故障切换，同时降低服务器计算机资源的消耗。 即使客户操作系统的数量增加，也可以通过防止故障切换期间的竞争来实现平滑的故障切换。 在从机/主机集群程序在客户OS /主机OS中运行的集群配置中，主集群程序（510）收集并发送从属集群程序的心跳，从而通过一定数量的心跳来实现故障监视，而没有 取决于客户操作系统的数量。 此外，当主集群程序监视其自己的计算机的从属集群程序的故障以查找客户OS的正常操作时，通过消除与备用系统从属集群程序的通信的必要性来减少通过心跳的通信量。