公开(公告)号：US07565661B2

公开(公告)日：2009-07-21

申请号：US10842286

申请日：2004-05-10

Applicant: Siew Yong Sim-Tang

Inventor： Siew Yong Sim-Tang

IPC: G06F9/54 ,  G06F11/00

CPC classification number: G06Q10/06 ,  G06F11/1446 ,  G06F11/1471 ,  G06F17/30368

Abstract: A data management system or “DMS” provides a wide range of data services to data sources associated with a set of application host servers. The data management system typically comprises one or more regions, with each region having one or more clusters. A given cluster has one or more nodes that share storage. To facilitate the data service, a host driver embedded in an application server connects an application and its data to a cluster. The host driver provides a method and apparatus for capturing real-time data modifications and application state notifications and, in response, generating data transactions in the form of an event journal that is provided to the data management system. The driver functions to translate traditional file/database/block I/O into a continuous, application-aware, output data stream. Using the streams generated in this manner, the DMS offers a wide range of data services that include, by way of example only: data protection (and recovery), and disaster recovery (data distribution and data replication).

Abstract translation: 数据管理系统或“DMS”向与一组应用主机服务器相关联的数据源提供广泛的数据服务。 数据管理系统通常包括一个或多个区域，每个区域具有一个或多个簇。 给定的集群具有一个或多个共享存储的节点。 为了方便数据服务，嵌入在应用服务器中的主机驱动程序将应用程序及其数据连接到集群。 主机驱动程序提供了用于捕获实时数据修改和应用状态通知的方法和装置，并且作为响应，以提供给数据管理系统的事件日志的形式生成数据事务。 驱动程序用于将传统文件/数据库/块I / O转换为连续的，应用感知的输出数据流。 使用以这种方式生成的流，DMS提供了广泛的数据服务，其中仅包括数据保护（和恢复）和灾难恢复（数据分发和数据复制）。

公开(公告)号：US20080256138A1

公开(公告)日：2008-10-16

申请号：US12059505

申请日：2008-03-31

Applicant: Siew Yong Sim-Tang

Inventor： Siew Yong Sim-Tang

IPC: G06F17/30

CPC classification number: G06F17/30088 ,  G06F11/1435 ,  G06F11/1471 ,  G06F17/3023

Abstract: A data management system (DMS) includes a continuous real-time object store that captures all real-time activities, with associated object metadata information. The DMS is capable of reintroducing any point-in-time view of data ranging from a granular object to an entire file system. A set of algorithms (for creation of a file or directory, modification of a file or directory, deletion of a file or directory, and relocation/renaming of a file or directory) are used to generate and maintain a file system history in the DMS and to ensure that a latest version of a directory always refers to a latest version of its children until the directory changed. Any point-in-time recovery is implemented using the file system history in one of various ways to provide strong individual file integrity, exact point-in-time crash consistency, and/or recovery of last version of all files in the file system.

Abstract translation: 数据管理系统（DMS）包括一个连续的实时对象存储，它捕获所有的实时活动以及关联的对象元数据信息。 DMS能够重新引入从粒状对象到整个文件系统的数据的任何时间点视图。 使用一组算法（用于创建文件或目录，修改文件或目录，删除文件或目录以及文件或目录的重定位/重命名），以生成和维护DMS中的文件系统历史记录 并确保最新版本的目录总是引用其子版本的最新版本，直到目录更改为止。 使用文件系统历史记录以各种方式之一实现任何时间点恢复，以提供强大的单个文件完整性，准确的时间点崩溃一致性和/或文件系统中所有文件的最后版本的恢复。