Back to results
US 7,222,133 B1Granted
Method for reducing database recovery time
AssigneeUnisys Corporation
InventorsAnagha Raipurkar, Alma Navarro de Jesus, Donald Ralph Hart
Life of this patent
Estimating the term…
Abstract
A method is provided to automatically select the correct order of backups from selected DUMP files in order to recover and rebuild a complete database in reduced time without requiring the user to search, find and select the correct order of items for the backup.
Claims8
A system for reducing time in a server-database network where various types of dump operations are categorized in a dump directory for automatic sequential selection to execute a recovery operation comprising:
- (a) data storage means for providing disk means for holding database files available for read-write access by a server means;
- (b) means to initiate and to enable operations with said disk means to create special sets of backup dump files on a tape storage means, wherein said means to initiate and create special sets of backup dump files includes:
- (b1) means for creating a FULL dump file;
- (b2) means for creating a set of ACCUMULATED dump files;
- (b3) means for creating a set of INCREMENTAL dump files;
- (c) said tape storage means for holding said special set of backup dump files;
- (d) means for creating a Main Directory in a correct sequential order and which has a log of the special sets of backup dump files from said tape means, said correct sequential order involving dumps which are accessed in the following order:
- (i) a most recent FULL DUMP;
- (ii) a most recent ACCUMULATED dump;
- (iii) a most recent set of INCREMENTAL dumps;
- (e) recovery means for selecting and placing said special sets of backup dump files into said disk means to establish an updated and operable database.
8 more elements
Dependencies are inferred from the claim text.