The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2019
Filed:
Jul. 13, 2015
Quantum Corporation, San Jose, CA (US);
Quantum Corporation, San Jose, CA (US);
Abstract
Methods, apparatus, and other embodiments facilitate transitioning a database between two modes. The two modes include a mode where table information for separate tables in the database is stored in a single monolithic file and a mode where the table information for separate tables is stored in separate files. Conventional attempts to make this type of transition lock the database for an unacceptable amount of time. Example methods and apparatus make a copy of a database that is to be transitioned, lock the copy, make a second instance of the copy, and then perform the work necessary for the transition in the second instance. This allows the original database to remain running. When the second instance is complete, the second instance is synchronized to the original database and then the transition is completed by copying the second instance to the original or failing the original over to the second instance.