Invention Grant
US08131723B2 Recovering a file system to any point-in-time in the past with guaranteed structure, content consistency and integrity
有权
将文件系统恢复到过去任何时间点,保证结构,内容一致性和完整性
- Patent Title: Recovering a file system to any point-in-time in the past with guaranteed structure, content consistency and integrity
- Patent Title (中): 将文件系统恢复到过去任何时间点,保证结构,内容一致性和完整性
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Application No.: US12059505Application Date: 2008-03-31
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Publication No.: US08131723B2Publication Date: 2012-03-06
- Inventor: Siew Yong Sim-Tang
- Applicant: Siew Yong Sim-Tang
- Applicant Address: US CA Aliso Viejo
- Assignee: Quest Software, Inc.
- Current Assignee: Quest Software, Inc.
- Current Assignee Address: US CA Aliso Viejo
- Agency: Knobbe Martens Olson & Bear, LLP
- Main IPC: G06F7/00
- IPC: G06F7/00

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.
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