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:
Aug. 01, 2017
Filed:
Mar. 11, 2014
Amazon Technologies, Inc., Reno, NV (US);
Danny Wei, Seattle, WA (US);
Kerry Quintin Lee, Seattle, WA (US);
John Luther Guthrie, II, Seattle, WA (US);
Jianhua Fan, Seattle, WA (US);
James Michael Thompson, Seattle, WA (US);
Nandakumar Gopalakrishnan, Seattle, WA (US);
Amazon Technologies, Inc., Reno, NV (US);
Abstract
A block-based storage system may implement efficient replication for restoring a data volume from a reduced durability state. A storage node that is not replicating write requests for a data volume may determine that replication for the data volume is to be enabled. A peer storage node may be identified that maintains a stale replica of the data volume. One or more replication operations may be performed to update stale data chunks in the stale replica of the data volume with current data chunks without updating data chunks in the stale replica of the data volume that are current. Stale replicas that are no longer needed may be deleted according timeouts or the amount of stale data in the replica.