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.

Date of Patent:
Oct. 01, 2024

Filed:

Aug. 31, 2023
Applicant:

Netapp Inc., San Jose, CA (US);

Inventors:

Akhil Kaushik, San Jose, CA (US);

Anil Kumar Ponnapur, Sunnyvale, CA (US);

Aravind Srinivasa Raghavan, Santa Clara, CA (US);

Manoj Kumar V Sundararajan, Sunnyvale, CA (US);

Assignee:

NetApp, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/065 (2013.01); G06F 3/061 (2013.01); G06F 3/0617 (2013.01); G06F 3/0619 (2013.01); G06F 3/0658 (2013.01); G06F 3/0659 (2013.01); G06F 3/067 (2013.01); G06F 3/0683 (2013.01);
Abstract

One or more techniques and/or computing devices are provided for resilient replication of storage operations. For example, a first storage controller may host first storage having a replication relationship with second storage hosted by a second storage controller. To improve resiliency against transient network issues of a network between the storage controllers, the first storage controller may implement a queue and retry mechanism to retry replication operations not acknowledge back by the second storage controller within a threshold time. The second storage controller may maintain a cumulative sequence number of a latest replication operation performed in order, an operation response map of replication operations performed out of order, and an operation finder map identifying currently implemented replication operations, which may be used to process incoming replication operations. Single write semantics, write order consistency, and reduction of write amplification may be provided.


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