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:
Jun. 24, 2025

Filed:

Jun. 12, 2023
Applicant:

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

Inventors:

Ratnesh Gupta, Dublin, CA (US);

Kalaivani Arumugham, Sunnyvale, CA (US);

Ram Kesavan, Los Altos, CA (US);

Ravikanth Dronamraju, Pleasanton, CA (US);

Assignee:

NETAPP, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/20 (2006.01); G06F 11/16 (2006.01);
U.S. Cl.
CPC ...
G06F 11/2069 (2013.01); G06F 11/1662 (2013.01); G06F 11/2064 (2013.01); G06F 11/2058 (2013.01); G06F 11/2071 (2013.01); G06F 11/2082 (2013.01); G06F 2201/82 (2013.01);
Abstract

Failover methods and systems for a storage environment are provided. During a takeover operation to take over storage of a first storage system node by a second storage system node, the second storage system node copies information from a first storage location to a second storage location. The first storage location points to an active file system of the first storage system node, and the second storage location is assigned to the second storage system node for the takeover operation. The second storage system node quarantines storage space likely to be used by the first storage system node for a write operation, while the second storage system node attempts to take over the storage of the first storage system node. The second storage system node utilizes information stored at the second storage location during the takeover operation to give back control of the storage to the first storage system node.


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