Method for reducing database recovery time
First Claim
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1. 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.
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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.
1430 Citations
8 Claims
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1. 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:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification