Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 26, 2019
Patent Application Number
15210501
Date Filed
July 14, 2016
Patent Primary Examiner
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.
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