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:
Jan. 01, 2019
Filed:
Feb. 05, 2018
International Business Machines Corporation, Armonk, NY (US);
Florent C. Rostagni, Southampton, GB;
Andrea Sipka, Chandler's Ford, GB;
John P. Wilkinson, Salisbury, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Storage sites are allocated pairs of nodes in which one node of the pair acts as an owner node while the other a backup node. When a local owner node receives a colliding write, the local owner node obtains a lock on the modified database and transfers both the write data and metadata to a remote owner node. The remote owner node returns a write complete message and the local site owner unlocks the modified database. When a local backup node receives a colliding write, the local backup node requests a lock from the local owner node and sends the write data to the remote owner node while the local owner node sends the write metadata to the remote owner node. The remote owner node then returns a write complete message to the local backup node which then requests the modified database be unlocked by the local owner node.