Invention Grant
- Patent Title: Copy-less restoring of transaction files of a database system
- Patent Title (中): 复制数据库系统的事务文件的还原
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Application No.: US11789083Application Date: 2007-04-23
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Publication No.: US08015158B1Publication Date: 2011-09-06
- Inventor: Michael Mankovsky , Qing Zhang
- Applicant: Michael Mankovsky , Qing Zhang
- Applicant Address: US CA Sunnyvale
- Assignee: NetApp, Inc.
- Current Assignee: NetApp, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Stattler-Suh PC
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F17/00

Abstract:
A mechanism is provided for archiving and restoring transaction files of a database system without requiring the copying of the transaction files. A server system executes a host application that implements the database system comprising a set of database files and a set of transaction files that contains updates to the set of database files, the files being stored in a storage system. A backup engine interacts with the host application to archive a transaction file having an original filename in an original directory by creating a corresponding archive filename to the transaction file in an archive directory. The archive transaction files may be used later to perform a copy-less restore process of the database system that does not require copying of any transaction files. The copy-less restore process restores any altered original filenames by replacing, in the original directory, an altered original filename with its corresponding archive filename.
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