US Patent 10216577 Multicast raid: distributed parity protection

Patent 10216577 was granted and assigned to Nexenta Systems on February, 2019 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Patent Applicant

Nexenta Systems

Current Assignee

Nexenta Systems

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

10216577

Date of Patent

February 26, 2019

Patent Application Number

15210501

Date Filed

July 14, 2016

Patent Primary Examiner

‌

Phung M Chung

Patent abstract

The present invention introduces a specific form of parity protection chunk (PPC) that allows for distributed creation of coordinated PPCs that can reliably provide protection against the concurrent loss of two or more storage servers of devices. Coordinated PPCs can protect against the concurrent loss of multiple lost chunks by ensuring that the PPCSs protecting any specific chunk have at most a single overlapping failure domain. This is done without requiring full centralized control over the assignment of protected chunks to specific PPCs. The PPCs are created as part of the put transaction for a chunk. The chunk itself is stored as a whole replica, and the PPCs provide parity protection for the chunk.