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1. 发明授权

US07620668B2 Authoritative and non-authoritative restore 有权
标题翻译：权威性和非权威性的恢复
公开(公告)号：US07620668B2
公开(公告)日：2009-11-17
申请号：US11124219
申请日：2005-05-06
申请人： Vishal Kathuria , Martin J. Sleeman , Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla , Yunxin Wu , Shaoyu Zhou , Lev Novik , Tomas Talius
发明人： Vishal Kathuria , Martin J. Sleeman , Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla , Yunxin Wu , Shaoyu Zhou , Lev Novik , Tomas Talius
IPC分类号： G06F12/00 , G06F17/30
CPC分类号： G06F11/1451 , G06F11/1469 , G06F11/1662 , Y10S707/99953 , Y10S707/99955
摘要： The subject invention relates to systems and/or methods that perform an authoritative and/or a non-authoritative restore of items in a data store. Backups are provided that include data associated with items and metadata related to the items that can include a history of operations and previous synchronizations to enable replications to converge after restoration. The operations that can be performed on the items include, for example, create, delete, update, move, etc. The items in the backups can be restored along with the metadata, which can be utilized to enable synchronization partners to converge based on a desired type of restoration.
摘要翻译：本发明涉及执行数据存储中的项目的权威和/或非授权恢复的系统和/或方法。提供备份，其包括与可以包括操作历史和先前同步的项目相关的项目和元数据相关联的数据，以使复制能够在恢复之后收敛。可以对项目执行的操作包括例如创建，删除，更新，移动等。备份中的项目可以与元数据一起被还原，所述元数据可以用于使同步伙伴能够基于所需类型的修复。

2. 发明授权

US07590668B2 Pausable backups of file system items 有权
标题翻译：文件系统项目的可靠备份
公开(公告)号：US07590668B2
公开(公告)日：2009-09-15
申请号：US11106838
申请日：2005-04-15
申请人： Vishal Kathuria , Martin J. Sleeman , Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla
发明人： Vishal Kathuria , Martin J. Sleeman , Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla
IPC分类号： G06F12/00
CPC分类号： G06F11/1461 , G06F2201/84 , Y10S707/99953
摘要： The subject invention relates to systems and methods that enable pausing and/or resuming a backup of file system items. The items are backed up in an order based on a unique property associated with each of the items. When the backup is paused, the unique property associated with a last backed up item prior to the pause is stored. Additionally, a timestamp associated with a snapshot from which the backup was taken can be stored with the unique property. Upon being resumed, the backup can continue from the paused location via utilizing the stored unique property. The backup can be resumed either employing an original snapshot associated with a time prior to the pause or a second snapshot related to a subsequent time. The subject invention can perform an initial backup of file system items and/or an incremental backup of such items. Additionally, the subject invention can support backing up a file system at disparate levels of granularity such as, for example, an item level.
摘要翻译：本发明涉及能够暂停和/或恢复文件系统项目的备份的系统和方法。这些项目根据与每个项目相关联的唯一属性的顺序进行备份。当备份暂停时，存储与暂停之前的最后备份项目相关联的唯一属性。此外，与备份所采用的快照关联的时间戳可以与唯一属性一起存储。恢复后，可以通过利用存储的独特属性从暂停的位置继续备份。可以恢复备份，使用与暂停之前的时间相关联的原始快照或与随后的时间相关的第二快照。本发明可以执行文件系统项目的初始备份和/或这些项目的增量备份。另外，本发明可以支持以不同的粒度级别备份文件系统，例如项目级别。

3. 发明授权

US07676481B2 Serialization of file system item(s) and associated entity(ies) 有权
标题翻译：文件系统项目和关联实体的序列化
公开(公告)号：US07676481B2
公开(公告)日：2010-03-09
申请号：US11121284
申请日：2005-05-03
申请人： Vishal Kathuria , Hanumantha Rao Kodavalla , Martin J. Sleeman , Robin Dhananjay Dhamankar
发明人： Vishal Kathuria , Hanumantha Rao Kodavalla , Martin J. Sleeman , Robin Dhananjay Dhamankar
IPC分类号： G06F17/00 , G06F17/30
CPC分类号： G06F9/4493 , G06F11/1448 , Y10S707/99942
摘要： A system and method for serialization and/or de-serialization of file system item(s) and associated entity(ies)is provided. A file system “item” comprises a core class which can include property(ies). Through serialization, a consistent copy of the item and associated entity(ies), such as fragment(s), link(s) with other item(s) and/or extension(s),if any, can be captured. The serialization system includes an identification component that identities entity(ies) associated with an item and a serialization component that serializes the item and associated entity(ies). The serialization component can further serialize a header that includes information associated with the item and associated entity(ies). The header can facilitate random access to the item and associated entity(ies). The serialization system can expose application program interface(s) (API's) that facilitate the copying, moving and/or transfer of an item and its associated entity(ies) from one location to another location.
摘要翻译：提供了一种用于文件系统项目和关联实体的序列化和/或解串行化的系统和方法。文件系统“项目”包括可以包括属性的核心类。通过序列化，可以捕获项目和关联实体（例如片段，与其他项目和/或扩展）的链接（如果有的话）的一致副本。序列化系统包括识别组件，其与项目相关联的身份实体和串行化项目和关联实体的序列化组件。序列化组件可以进一步序列化包括与项目和关联实体相关联的信息的报头。标题可以促进对项目和关联实体的随机访问。序列化系统可以公开应用程序接口（API），其便于将项目及其相关联的实体从一个位置复制，移动和/或传送到另一个位置。

4. 发明授权

US07765361B2 Enforced transaction system recoverability on media without write-through 失效
标题翻译：强制执行媒体上的事务系统可恢复性，无需直写
公开(公告)号：US07765361B2
公开(公告)日：2010-07-27
申请号：US11562053
申请日：2006-11-21
申请人： Robin Dhananjay Dhamankar , Vishal Kathuria , Sethu Kalavakur , Gayathri Venkataraman , Avraham Levy , Hanumantha Rao Kodavalla , Chunjia Li , Eric Ray Christensen
发明人： Robin Dhananjay Dhamankar , Vishal Kathuria , Sethu Kalavakur , Gayathri Venkataraman , Avraham Levy , Hanumantha Rao Kodavalla , Chunjia Li , Eric Ray Christensen
IPC分类号： G06F12/16
CPC分类号： G06F12/0804 , G06F11/1471 , G06F12/0866 , G06F17/30368
摘要： To ensure that logs representative of data changes are durably written, localized storage media cache is flushed to force a write to stable storage. Log sequence number tracking is leveraged to determine if log data in a localized storage media cache is likely to have not been written to durable storage. When this condition is likely, a FLUSH_CACHE command is issued to a storage media controller to force a durable write. This allows recovery of data changes to a transactional system even when its associated storage media does not provide write-ordering guarantees. Moreover, flushing of the storage media cache can be accomplished at a frequency that provides an upper bound on a maximum time between a transaction commit and data being made durable.
摘要翻译：为了确保代表数据更改的日志持久写入，本地化存储介质缓存被刷新以强制写入稳定的存储。利用日志序列号跟踪来确定本地化存储介质缓存中的日志数据是否可能尚未写入持久存储。当这种情况很可能时，会向存储介质控制器发出FLUSH_CACHE命令以强制持久写入。即使在关联的存储介质不提供写入顺序保证的情况下，也可以将数据更改恢复到事务性系统。此外，存储介质缓存的刷新可以以提供交易提交和数据被持久的最大时间之间的上限的频率来实现。

5. 发明申请

US20080120470A1 ENFORCED TRANSACTION SYSTEM RECOVERABILITY ON MEDIA WITHOUT WRITE-THROUGH 失效
标题翻译：强大的交易系统可以在不用写入的情况下对媒体进行恢复
公开(公告)号：US20080120470A1
公开(公告)日：2008-05-22
申请号：US11562053
申请日：2006-11-21
申请人： Robin Dhananjay Dhamankar , Vishal Kathuria , Sethu Kalavakur , Gayathri Venkataraman , Avraham Levy , Hanumantha Rao Kodavalla , Chunjia Li , Eric Ray Christensen
发明人： Robin Dhananjay Dhamankar , Vishal Kathuria , Sethu Kalavakur , Gayathri Venkataraman , Avraham Levy , Hanumantha Rao Kodavalla , Chunjia Li , Eric Ray Christensen
IPC分类号： G06F12/08
CPC分类号： G06F12/0804 , G06F11/1471 , G06F12/0866 , G06F17/30368
摘要： To ensure that logs representative of data changes are durably written, localized storage media cache is flushed to force a write to stable storage. Log sequence number tracking is leveraged to determine if log data in a localized storage media cache is likely to have not been written to durable storage. When this condition is likely, a FLUSH_CACHE command is issued to a storage media controller to force a durable write. This allows recovery of data changes to a transactional system even when its associated storage media does not provide write-ordering guarantees. Moreover, flushing of the storage media cache can be accomplished at a frequency that provides an upper bound on a maximum time between a transaction commit and data being made durable.
摘要翻译：为了确保代表数据更改的日志持久写入，本地化存储介质缓存被刷新以强制写入稳定的存储。利用日志序列号跟踪来确定本地化存储介质缓存中的日志数据是否可能尚未写入持久存储。当这种情况很可能时，会向存储介质控制器发出FLUSH_CACHE命令以强制持久写入。即使在关联的存储介质不提供写入顺序保证的情况下，也可以将数据更改恢复到事务性系统。此外，存储介质缓存的刷新可以以提供交易提交和数据被持久的最大时间之间的上限的频率来实现。

6. 发明授权

US08370310B2 Managing database recovery time 有权
标题翻译：管理数据库恢复时间
公开(公告)号：US08370310B2
公开(公告)日：2013-02-05
申请号：US13041091
申请日：2011-03-04
申请人： Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla
发明人： Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla
IPC分类号： G06F15/16 , G06F17/20
CPC分类号： G06F17/30303 , G06F11/1471 , G06F2201/80
摘要： Managing database recovery time. A method includes receiving user input specifying a target recovery time for a database. The method further includes determining an amount of time to read a data page of the database from persistent storage. The method further includes determining an amount of time to process a log record of the database to apply changes specified in the log record to a data page. The method further includes determining a number of dirty pages that presently would be read in recovery if a database failure occurred. The method further includes determining a number of log records that would be processed in recovery if a database failure occurred. The method further includes adjusting at least one of the number of dirty pages that presently would be read in recovery or the number of log records that would be processed in recovery to meet the specified target recovery time.
摘要翻译：管理数据库恢复时间。一种方法包括接收指定数据库的目标恢复时间的用户输入。该方法还包括确定从持久存储器读取数据库的数据页面的时间量。该方法还包括确定处理数据库的日志记录的时间量以将在日志记录中指定的改变应用于数据页。该方法还包括确定在发生数据库故障时当前将在恢复中读取的脏页数。该方法还包括确定在发生数据库故障时将在恢复中处理的日志记录的数量。该方法还包括调整目前将在恢复中读取的脏页数的数目或将在恢复中处理以满足指定的目标恢复时间的日志记录的数目中的至少一个。

7. 发明申请

US20120226668A1 MANAGING DATABASE RECOVERY TIME 有权
标题翻译：管理数据库恢复时间
公开(公告)号：US20120226668A1
公开(公告)日：2012-09-06
申请号：US13041091
申请日：2011-03-04
申请人： Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla
发明人： Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla
IPC分类号： G06F17/30
CPC分类号： G06F17/30303 , G06F11/1471 , G06F2201/80
摘要： Managing database recovery time. A method includes receiving user input specifying a target recovery time for a database. The method further includes determining an amount of time to read a data page of the database from persistent storage. The method further includes determining an amount of time to process a log record of the database to apply changes specified in the log record to a data page. The method further includes determining a number of dirty pages that presently would be read in recovery if a database failure occurred. The method further includes determining a number of log records that would be processed in recovery if a database failure occurred. The method further includes adjusting at least one of the number of dirty pages that presently would be read in recovery or the number of log records that would be processed in recovery to meet the specified target recovery time.
摘要翻译：管理数据库恢复时间。一种方法包括接收指定数据库的目标恢复时间的用户输入。该方法还包括确定从持久存储器读取数据库的数据页面的时间量。该方法还包括确定处理数据库的日志记录的时间量以将在日志记录中指定的改变应用于数据页。该方法还包括确定在发生数据库故障时当前将在恢复中读取的脏页数。该方法还包括确定在发生数据库故障时将在恢复中处理的日志记录的数量。该方法还包括调整目前将在恢复中读取的脏页数的数目或将在恢复中处理以满足指定的目标恢复时间的日志记录的数目中的至少一个。

8. 发明授权

US08818960B2 Tracking redo completion at a page level 有权
标题翻译：在页面级跟踪重做完成
公开(公告)号：US08818960B2
公开(公告)日：2014-08-26
申请号：US13051970
申请日：2011-03-18
申请人： Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla
发明人： Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla
IPC分类号： G06F7/00
CPC分类号： G06F11/1469 , G06F17/30306 , G06F17/30477
摘要： Embodiments are directed to implementing a transitional redo phase to allow pre-redo phase data access and to determining which data pages including unprocessed transactions are to be processed during a transitional redo phase. In an embodiment, a computer system initiates an analysis phase of a database recovery that scans a database transaction log and builds a dirty page table that includes pages corresponding to unprocessed data transactions. The computer system determines from the dirty page table which pages are to be processed during the transitional redo phase, before the final redo phase. The computer system processes the determined pages during the transitional redo phase, before the final redo phase is reached and, upon completion of the system transaction undo phase, makes available those pages that were processed during the transitional redo phase, as well as those database pages that are not scheduled for processing during the final redo phase.
摘要翻译：实施例涉及实现过渡重做阶段，以允许重做前相位数据访问，并确定在过渡重做阶段期间处理包括未处理事务的数据页面。在一个实施例中，计算机系统启动扫描数据库事务日志的数据库恢复的分析阶段，并构建包含与未处理的数据事务相对应的页面的脏页表。计算机系统从脏页表确定在过渡重做阶段期间在最后重做阶段之前要处理的页面。计算机系统在过渡重做阶段期间处理确定的页面，在达到最后的重做阶段之前，并且在完成系统事务撤销阶段后，使得在过渡重做阶段期间处理的那些页面以及那些数据库页面这些计划在最后重做阶段没有计划进行处理。

9. 发明申请

US20120239628A1 TRACKING REDO COMPLETION AT A PAGE LEVEL 有权
标题翻译：在页面级跟踪重做完成
公开(公告)号：US20120239628A1
公开(公告)日：2012-09-20
申请号：US13051970
申请日：2011-03-18
申请人： Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla
发明人： Robin Dhananjay Dhamankar , Hanumantha Rao Kodavalla
IPC分类号： G06F7/00
CPC分类号： G06F11/1469 , G06F17/30306 , G06F17/30477
摘要： Embodiments are directed to implementing a transitional redo phase to allow pre-redo phase data access and to determining which data pages including unprocessed transactions are to be processed during a transitional redo phase. In an embodiment, a computer system initiates an analysis phase of a database recovery that scans a database transaction log and builds a dirty page table that includes pages corresponding to unprocessed data transactions. The computer system determines from the dirty page table which pages are to be processed during the transitional redo phase, before the final redo phase. The computer system processes the determined pages during the transitional redo phase, before the final redo phase is reached and, upon completion of the system transaction undo phase, makes available those pages that were processed during the transitional redo phase, as well as those database pages that are not scheduled for processing during the final redo phase.
摘要翻译：实施例涉及实现过渡重做阶段，以允许重做前相位数据访问，并确定在过渡重做阶段期间处理包括未处理事务的数据页面。在一个实施例中，计算机系统启动扫描数据库事务日志的数据库恢复的分析阶段，并构建包含与未处理的数据事务相对应的页面的脏页表。计算机系统从脏页表确定在过渡重做阶段期间在最后重做阶段之前要处理的页面。计算机系统在过渡重做阶段期间处理确定的页面，在达到最后的重做阶段之前，并且在完成系统事务撤销阶段后，使得在过渡重做阶段期间处理的那些页面以及那些数据库页面这些计划在最后重做阶段没有计划进行处理。

10. 发明申请

US20130212068A1 DATABASE POINT-IN-TIME RESTORE AND AS-OF QUERY 有权
标题翻译： DATABASE POINT-IN-TIME RESTORE和AS-OF QUERY
公开(公告)号：US20130212068A1
公开(公告)日：2013-08-15
申请号：US13370125
申请日：2012-02-09
申请人： Tomas Talius , Robin Dhananjay Dhamankar , Hanumantha R. Kodavalla
发明人： Tomas Talius , Robin Dhananjay Dhamankar , Hanumantha R. Kodavalla
IPC分类号： G06F7/00
CPC分类号： G06F17/30144 , G06F17/30088
摘要： A database is queried as of any wall-clock time within a retention period, via undo that uses database snapshots and a list of page level modifications. The snapshot is user-identified, automatically generated, or extracted from a backup. The list is maintained in a transaction log by persisting page content before a page is re-used, persisting deleted rows before they are moved, persisting compensation log record undo information, and/or logging a full page. To rewind an entire database, the undo scans the transaction log in reverse LSN order and undoes all page modifications. Undo reverses reallocated pages, table truncation, and/or table deletion, as well as page-level modifications of a schema, metadata values, and/or system tables. An as-of query is handled using as-of page(s) from a sparse page file. If the sparse page file does not already contain the responsive page(s), they are created and added to it.
摘要翻译：通过使用数据库快照和页面级修改列表的撤销，在保留期内的任何挂钟时间查询数据库。快照是用户标识，自动生成或从备份中提取的。该列表通过在重新使用页面之前持久页面内容来维护事务日志，在删除的行移动之前保留已删除的行，持久化补偿日志记录撤消信息和/或记录完整页面。要倒退整个数据库，undo以反向LSN顺序扫描事务日志，并撤消所有页面修改。撤消反转重新分配的页面，表截断和/或表删除，以及模式，元数据值和/或系统表的页面级修改。使用从稀疏页面文件中的页面处理一个查询。如果稀疏页面文件尚未包含响应页面，则会创建它们并将其添加到其中。

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