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21. 发明授权

US08015436B2 Resilient data storage in the presence of replication faults and rolling disasters 有权
标题翻译：存在复制故障和滚动灾害时的弹性数据存储
公开(公告)号：US08015436B2
公开(公告)日：2011-09-06
申请号：US12463438
申请日：2009-05-11
申请人： Alex Winokur
发明人： Alex Winokur
IPC分类号： G06F11/00
CPC分类号： G06F12/0866 , G06F11/1443 , G06F11/2074 , G06F11/2082
摘要： A method for data protection includes, in a first operational mode, sending data items for storage in a primary storage device and in a secondary storage device, while temporarily caching the data items in a disaster-proof storage unit and subsequently deleting the data items from the disaster-proof storage unit, wherein each data item is deleted from the disaster-proof storage unit upon successful storage of the data item in the secondary storage device.An indication of a fault related to storage of the data in the secondary storage device is received. Responsively to the indication, operation is switched to a second operational mode in which the data items are sent for storage at least in the primary storage device and are cached and retained in the disaster-proof storage unit irrespective of the successful storage of the data items in the secondary storage device.
摘要翻译：一种用于数据保护的方法包括：在第一操作模式中发送用于存储在主存储设备和辅助存储设备中的数据项，同时将数据项暂时缓存在防灾存储单元中，随后从防灾存储单元，其中在数据项成功地存储在辅助存储设备中时，从防灾存储单元中删除每个数据项。接收与辅助存储装置中的数据的存储有关的故障的指示。响应于指示，操作切换到第二操作模式，其中数据项至少在主存储设备中被发送存储，并被缓存并保存在防灾存储单元中，而不管数据项的成功存储在辅助存储设备中。

22. 发明授权

US07984327B2 Fast data recovery system 有权
标题翻译：快速数据恢复系统
公开(公告)号：US07984327B2
公开(公告)日：2011-07-19
申请号：US12228315
申请日：2008-08-11
申请人： Alex Winokur
发明人： Alex Winokur
IPC分类号： G06F11/00 , G06F13/00
CPC分类号： G06F11/2082 , G06F11/2038 , G06F11/2071
摘要： A data processing method includes receiving data objects for storage by a primary storage device. A first instance of each of at least some of the received data objects is cached in a disaster-proof storage unit. A second instance of each received data object is sent for storage in a secondary storage device.A list of identifiers of the data objects that are cached in the disaster-proof storage unit at a given point in time is sent from the disaster-proof storage unit to the secondary storage device. Following an event that renders at least some of the data objects on the primary storage device inaccessible, a request sent to the secondary storage device to access a given data object is received. A selection is made, responsively to the list, to serve the cached first instance or the stored second instance of the given data object in response to the request.
摘要翻译：一种数据处理方法包括：接收用于由主存储设备存储的数据对象。至少一些接收到的数据对象中的每一个的第一实例被缓存在防灾存储单元中。发送每个接收到的数据对象的第二个实例以存储在辅助存储设备中。从防灾存储单元向二次存储装置发送在给定时间点缓存在防灾存储单元中的数据对象的标识符列表。在使主存储设备上的至少一些数据对象不可访问的事件之后，接收发送到辅助存储设备以访问给定数据对象的请求。响应于该列表，进行选择以响应于该请求来服务于缓存的第一实例或给定数据对象的存储的第二实例。

23. 发明申请

US20090216969A1 Remote data mirroring system 有权
标题翻译：远程数据镜像系统
公开(公告)号：US20090216969A1
公开(公告)日：2009-08-27
申请号：US10585587
申请日：2005-04-20
申请人： Alex Winokur
发明人： Alex Winokur
IPC分类号： G06F12/16 , G06F12/00 , G06F12/02 , G06F17/30 , G06N5/02
CPC分类号： G06F11/2082 , G06F11/1441 , G06F11/2012 , G06F11/2074
摘要： A method for data protection includes accepting data for storage from one or more data sources (24). The data is sent for storage in a primary storage device (28) and in a secondary storage device (32). While awaiting an indication of successful storage of the data in the secondary storage device, a record associated with the data is temporarily stored in a disaster-proof storage unit (48) adjacent to the primary storage device. When an event damaging at least some of the data in the primary storage device occurs, the data is reconstructed using the record stored in the disaster-proof storage unit and at least part of the data stored in the secondary storage device.
摘要翻译：一种用于数据保护的方法包括从一个或多个数据源（24）接收用于存储的数据。数据被发送存储在主存储设备（28）和辅助存储设备（32）中。在等待辅助存储设备中数据成功存储的指示时，与数据相关联的记录被临时存储在与主存储设备相邻的防灾存储单元（48）中。当发生破坏主存储装置中的至少一些数据的事件时，使用存储在防灾存储单元中的记录和存储在辅助存储装置中的数据的至少一部分来重构数据。

24. 发明授权

US5594900A System and method for providing a backup copy of a database 失效
标题翻译：提供数据库备份副本的系统和方法
公开(公告)号：US5594900A
公开(公告)日：1997-01-14
申请号：US409478
申请日：1995-03-22
申请人： Oded Cohn , Kenneth Nagin , Yoram Novick , Alex Winokur
发明人： Oded Cohn , Kenneth Nagin , Yoram Novick , Alex Winokur
IPC分类号： G06F12/00 , G06F11/14 , G06F12/16 , G11C29/00 , G06F13/14
CPC分类号： G06F11/2064 , G06F11/2071 , G06F2201/80 , G11C29/74 , Y10S707/99953
摘要： A backup method for a computer database system comprising maintaining a mirrored copy of the database at a remote location is characterized in that updates to the remote database data are delayed for a delay time greater than or equal to the upper limit on the data communication delay between the local location and the remote location and updates to a remote log for the database are executed after corresponding updates to a local log without said delay. In this way a consistent copy of the database may be recovered from the mirrored copy of the database and the remote log after destruction of the database system.
摘要翻译：一种用于计算机数据库系统的备份方法，包括在远程位置维护数据库的镜像副本，其特征在于，对远程数据库数据的更新被延迟大于或等于数据通信延迟上限的延迟时间本地位置和远程位置的更新以及对数据库的远程日志的更新将在对本地日志的相应更新后执行，而不会造成延迟。以这种方式，在数据库系统销毁后，可以从数据库和远程日志的镜像副本中恢复数据库的一致副本。

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