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:
Feb. 23, 2021
Filed:
Aug. 28, 2015
Hewlett Packard Enterprise Development Lp, Houston, TX (US);
Mark Doherty, Belfast, GB;
Siamak Nazari, Fremont, CA (US);
Jin Wang, Fremont, CA (US);
Srinivasa D. Murthy, Fremont, CA (US);
Paul Kinnaird, Belfast, GB;
Pierre Labat, Fremont, CA (US);
Jonathan Stewart, Belfast, GB;
Hewlett Packard Enterprise Development LP, Houston, TX (US);
Abstract
Methods and systems for collision handling during an asynchronous replication are provided. A system includes a cache memory system comprising a number of cache memory pages. A collision detector detects when a host is attempting to overwrite a cache memory page that has not been completely replicated. A revision page tagger copies the cache memory page to a free page and tags the copied page as protected.