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:
Nov. 08, 2022
Filed:
Jan. 28, 2020
Netapp Inc., Sunnyvale, CA (US);
Xin Wang, Sewickley, PA (US);
Vijay Deshmukh, Fremont, CA (US);
Kiyoshi Komatsu, San Mateo, CA (US);
Jonathan Curley, Pittsburgh, PA (US);
Laura Beegle, Evans City, PA (US);
Srishylam Simharajan, Cranberry Township, PA (US);
Gurmeet Singh, Fremont, CA (US);
NetApp Inc., San Jose, CA (US);
Abstract
The disclosed techniques enable push-based piggybacking of a source-driven logical replication system. Logical replication of a data set (e.g., a snapshot) from a source node to a destination node can be achieved from a source-driven system while preserving the effects of storage efficiency operations (deduplication) applied at the source node. However, if missing data extents are detected at the destination, the destination has an extent pulling problem as the destination may not have knowledge of the physical layout on the source-side and/or mechanisms for requesting extents. The techniques overcome the extent pulling problem in a source-driven replication system by introducing specific protocols for obtaining missing extents within an existing replication environment by piggybacking data pushes from the source.