公开(公告)号：US20060265434A1

公开(公告)日：2006-11-23

申请号：US11124219

申请日：2005-05-06

申请人： Vishal Kathuria ,  Martin Sleeman ,  Robin Dhamankar ,  Hanumantha Kodavalla ,  Yunxin Wu ,  Shaoyu Zhou ,  Lev Novik ,  Tomas Talius

发明人： Vishal Kathuria ,  Martin Sleeman ,  Robin Dhamankar ,  Hanumantha Kodavalla ,  Yunxin Wu ,  Shaoyu Zhou ,  Lev Novik ,  Tomas Talius

IPC分类号： 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.

公开(公告)号：US20060190469A1

公开(公告)日：2006-08-24

申请号：US11121284

申请日：2005-05-03

申请人： Vishal Kathuria ,  Hanumantha Kodavalla ,  Martin Sleeman ,  Robin Dhamankar

发明人： Vishal Kathuria ,  Hanumantha Kodavalla ,  Martin Sleeman ,  Robin Dhamankar

IPC分类号： G06F7/00

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). An item can be simple or compound (e.g., includes other item(s) embedded in it). Associated with an item can be entity(ies) such as fragment(s), link(s) with other item(s) and/or extension(s). Through serialization, a consistent copy of the item and associated entity(ies), if any, can be captured (e.g., for transporting of the item and to reconstruct the item on a destination system). 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) (e.g., allowing a reader to interpret/parse only the parts in which it is interested). 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。 项目可以是简单的或复合的（例如，包括其中嵌入的其他项目）。 与项目相关联可以是诸如片段，链接与其他项目和/或扩展之类的实体。 通过序列化，可以捕获项目和关联实体（如果有的话）的一致的副本（例如，用于传送物品并在目的地系统上重建物品）。 序列化系统包括识别组件。 与项目相关联的身份实体（entity）和序列化组件（序列化项目和关联实体）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相关实体的随机访问（例如，允许读者仅解释/解析其感兴趣的部分）。 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。

公开(公告)号：US20060235907A1

公开(公告)日：2006-10-19

申请号：US11106838

申请日：2005-04-15

申请人： Vishal Kathuria ,  Martin Sleeman ,  Robin Dhamankar ,  Hanumantha Kodavalla

发明人： Vishal Kathuria ,  Martin Sleeman ,  Robin Dhamankar ,  Hanumantha Kodavalla

IPC分类号： G06F17/30

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.

公开(公告)号：US20060224636A1

公开(公告)日：2006-10-05

申请号：US11099021

申请日：2005-04-05

申请人： Vishal Kathuria ,  Michael Zwilling ,  Hanumantha Kodavalla ,  Steven Schmidt ,  Martin Sleeman ,  Rajeev Rajan ,  Artem Oks

发明人： Vishal Kathuria ,  Michael Zwilling ,  Hanumantha Kodavalla ,  Steven Schmidt ,  Martin Sleeman ,  Rajeev Rajan ,  Artem Oks

IPC分类号： G06F17/30

CPC分类号： G06F11/1471 ,  G06F2201/80 ,  G06F2201/84

摘要： Systems and methods are disclosed that facilitate providing page-level database restore functionality upon detection of a corruption event. Updates to a data page in a database can trigger generation of a snapshot of the data page, and an update log can be maintained that stores information related to page updates. Subsequent snapshots can be generated at predetermined intervals and can trigger truncation of a log segment and initiation of a new log segment. Upon detection of page corruption, a most-recent uncorrupt snapshot of the corrupt page can be identified, copied to the location of the corrupt page in the database, and modified according to the log segment associated with the uncorrupt snapshot to make the page current as of the corrupting event, all of which can be performed to restore the database without having to take the database offline.

摘要翻译： 公开了在检测到腐败事件时便于提供页面级数据库恢复功能的系统和方法。 对数据库中的数据页的更新可以触发数据页快照的生成，并且可以维护存储与页面更新相关的信息的更新日志。 随后的快照可以以预定的间隔生成并且可以触发日志段的截断和新的日志段的启动。 在检测到页面损坏时，可以识别损坏的页面的最新的不破坏的快照，将其复制到数据库中的损坏页面的位置，并根据与非破坏快照关联的日志段进行修改，以使页面当前为 的破坏事件，所有这些都可以执行以恢复数据库，而不必使数据库脱机。

公开(公告)号：US07801866B1

公开(公告)日：2010-09-21

申请号：US10782988

申请日：2004-02-20

申请人： Vishal Kathuria ,  Hanumantha Kodavalla ,  Michael J. Zwilling

发明人： Vishal Kathuria ,  Hanumantha Kodavalla ,  Michael J. Zwilling

IPC分类号： G06F17/30

CPC分类号： G06F17/30348 ,  G06F11/1471 ,  G06F17/30368 ,  G06F17/30377

摘要： A “lazy commit” allows database transactions to be committed faster by not waiting for log records of the transaction to be written to disk. When a system crash occurs during the commit process, transactions may be lost because the log data is not available to recreate the transaction. While lazy commits speed up processing, they also increase the potential for data inconsistency. This invention introduces the concept of “durable reads”—transactions that require isolation from lazy commit transactions and which must be guaranteed to read only durably committed data. When durable read transaction attempts to read data changed by a lazy commit transaction, the system ensures the lazy commit transaction's changes are first made durable.

摘要翻译： “lazy commit”允许通过不等待要写入磁盘的事务的日志记录来更快地提交数据库事务。 在提交过程中发生系统崩溃时，事务可能会丢失，因为日志数据不可用于重新创建事务。 虽然懒惰加速处理，但它们也增加了数据不一致的可能性。 本发明介绍了需要与延迟提交事务隔离的“持久读取” - 交易的概念，必须保证只读持久地提交的数据。 当持久读取事务尝试读取数据由延迟提交事务更改时，系统将确保延迟提交事务的更改首先变得持久。

公开(公告)号：US20050278394A1

公开(公告)日：2005-12-15

申请号：US10837932

申请日：2004-05-03

申请人： Artem Oks ,  Hanumantha Kodavalla ,  Martin Sleeman

发明人： Artem Oks ,  Hanumantha Kodavalla ,  Martin Sleeman

IPC分类号： G06F7/00 ,  G06F17/30

CPC分类号： G06F11/1402 ,  G06F11/1469 ,  G06F11/1471 ,  G06F11/1474 ,  G06F17/30315 ,  G06F2201/80 ,  G06F2201/84 ,  Y10S707/99953

摘要： The present invention relates generally to database and file system management and, more particularly, to automatic database and file system maintenance and repair to ensure data reliability. Various aspects of the present invention relate to responding and correcting data corruptions at a data page level for all data page types, as well as to recovery (including rebuild or restore operations) for various scenarios including, without limitation, index page corruptions (clustered and non-clustered), data page corruptions, and page corruptions in the log file.

摘要翻译： 本发明一般涉及数据库和文件系统管理，更具体地涉及自动数据库和文件系统的维护和修复，以确保数据的可靠性。 本发明的各个方面涉及响应和纠正针对所有数据页面类型的数据页级别的数据损坏，以及针对各种场景的恢复（包括重建或恢复操作），包括但不限于索引页损坏（聚集和 非群集），数据页损坏和日志文件中的页面损坏。

公开(公告)号：US20060235909A1

公开(公告)日：2006-10-19

申请号：US11107527

申请日：2005-04-15

申请人： Artem Oks ,  Hanumantha Kodavalla ,  Martin Sleeman

发明人： Artem Oks ,  Hanumantha Kodavalla ,  Martin Sleeman

IPC分类号： G06F17/30

CPC分类号： G06F11/1461 ,  G06F11/1456 ,  G06F11/1469 ,  G06F11/1471 ,  G06F2201/80

摘要： Systems and methods are disclosed herein that facilitate automatic database backup and restore for databases resident in personal computing devices, and which are transparent to a user, utilizing database page mirroring. Modifications to a data page in a data file can be validated and written to a backup, or mirror, database and then subsequently written to an original database after a predetermined time. An I/O latch on a mirrored data page can be limited to a duration of a single I/O write operation to facilitate sequential data page writing to each of the databases while mitigating potential for both databases to be written simultaneously, which can detrimentally affect data quality during a recovery operation.

摘要翻译： 本文公开的系统和方法促进了驻留在个人计算设备中的数据库的自动数据库备份和恢复，并且对于用户而言，其利用数据库页面镜像是透明的。 可以对数据文件中的数据页进行修改，并将其写入备份或镜像数据库，然后在预定时间后将其写入原始数据库。 镜像数据页面上的I / O锁存器可以限制在单个I / O写操作的持续时间，以便顺序数据页写入每个数据库，同时减轻两个数据库的同时写入的可能性，这可能不利地影响 恢复操作期间的数据质量。

公开(公告)号：US20050262378A1

公开(公告)日：2005-11-24

申请号：US10903187

申请日：2004-07-30

申请人： Martin Sleeman ,  Artem Oks ,  Hanumantha Kodavalla ,  Nigel Ellis

发明人： Martin Sleeman ,  Artem Oks ,  Hanumantha Kodavalla ,  Nigel Ellis

IPC分类号： G06F12/00 ,  G06F11/14 ,  G06F17/30 ,  G06F11/00

CPC分类号： G06F17/3051 ,  G06F17/30306 ,  G06F17/30371 ,  Y10S707/954 ,  Y10S707/99942 ,  Y10S707/99943 ,  Y10S707/99953

摘要： The present invention is directed a logical consistency checker (LCC) working alone or in conjunction with a physical consistency checker (PCC) and/or a data reliability system (DRS) for a database files system of a hardware/software interface system. Logical data correction pertains to logical data corruptions for entities (e.g., items, extensions, and/or relationships in an item-based operating system, where an item-based operating system is one example of an item-based hardware/software interface system). In this regard, a LCC analyses and corrects logical damage to entities representatively stored in the data store in order to ensure that all such entities in said data store are both consistent and conform to the data model rules.

摘要翻译： 本发明涉及一种单独或与硬件/软件接口系统的数据库文件系统的物理一致性检查器（PCC）和/或数据可靠性系统（DRS）一起工作的逻辑一致性检查器（LCC）。 逻辑数据校正涉及实体的逻辑数据损坏（例如，基于项目的操作系统中的项目，扩展和/或关系，其中基于项的操作系统是基于项目的硬件/软件接口系统的一个示例） 。 在这方面，LCC分析并纠正代表性地存储在数据存储中的实体的逻辑损害，以便确保所述数据存储中的所有这些实体都是一致的并且符合数据模型规则。

公开(公告)号：US20070073764A1

公开(公告)日：2007-03-29

申请号：US11605184

申请日：2006-11-28

申请人： Artem Oks ,  Hanumantha Kodavalla ,  Martin Sleeman

发明人： Artem Oks ,  Hanumantha Kodavalla ,  Martin Sleeman

IPC分类号： G06F7/00

CPC分类号： G06F11/1402 ,  G06F11/1469 ,  G06F11/1471 ,  G06F11/1474 ,  G06F16/221 ,  G06F2201/80 ,  G06F2201/84 ,  Y10S707/99953

摘要： The present invention relates generally to database and file system management and, more particularly, to automatic database and file system maintenance and repair to ensure data reliability. Various aspects of the present invention relate to responding and correcting data corruptions at a data page level for all data page types, as well as to recovery (including rebuild or restore operations) for various scenarios including, without limitation, index page corruptions (clustered and non-clustered), data page corruptions, and page corruptions in the log file.

摘要翻译： 本发明一般涉及数据库和文件系统管理，更具体地涉及自动数据库和文件系统的维护和修复，以确保数据的可靠性。 本发明的各个方面涉及响应和纠正针对所有数据页面类型的数据页级别的数据损坏，以及针对各种场景的恢复（包括重建或恢复操作），包括但不限于索引页损坏（聚集和 非群集），数据页损坏和日志文件中的页面损坏。

公开(公告)号：US20060206544A1

公开(公告)日：2006-09-14

申请号：US11075675

申请日：2005-03-09

申请人： Artem Oks ,  Martin Sleeman ,  Rajesh Iyer ,  Hanumantha Kodavalla ,  Peter Byrne ,  Steven Schmidt ,  Mark Wistrom ,  Rajeev Rajan

发明人： Artem Oks ,  Martin Sleeman ,  Rajesh Iyer ,  Hanumantha Kodavalla ,  Peter Byrne ,  Steven Schmidt ,  Mark Wistrom ,  Rajeev Rajan

IPC分类号： G06F17/30

CPC分类号： G06F11/1451 ,  G06F11/1458 ,  G06F11/1469 ,  G06F11/1471 ,  G06F2201/80

摘要： An automatic database backup and restoration system comprises an interface component that receives statements relating to backing up at least a portion of a first database, the original database resident upon a consumer computing device. A backup component associated with the interface component automatically copies at least the portion of the first database and writes the copied portion to a backup database, the backup database is a full backup of the first database. The consumer computing device can be, for example, one of a laptop computer, a desktop computer, a personal digital assistant, and a cellular phone.

摘要翻译： 自动数据库备份和恢复系统包括接口组件，该接口组件接收与备份至少一部分第一数据库有关的陈述，原始数据库驻留在消费者计算设备上。 与接口组件相关联的备份组件自动复制至少第一个数据库的一部分，并将复制的部分写入备份数据库，备份数据库是第一个数据库的完整备份。 消费者计算设备可以是例如膝上型计算机，台式计算机，个人数字助理和蜂窝电话之一。