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:
May. 14, 2024

Filed:

Feb. 25, 2022
Applicant:

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

Inventors:

Wei Sun, Boulder, CO (US);

Anil Paul Thoppil, Pleasanton, CA (US);

Anne Maria Vasu, Erie, CO (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/10 (2006.01); G06F 3/06 (2006.01); G06F 11/16 (2006.01); G06F 11/30 (2006.01); G06F 16/27 (2019.01);
U.S. Cl.
CPC ...
G06F 11/1662 (2013.01); G06F 3/0622 (2013.01); G06F 3/064 (2013.01); G06F 3/0679 (2013.01); G06F 11/1088 (2013.01); G06F 11/3034 (2013.01); G06F 16/27 (2019.01);
Abstract

Systems and methods that make use of cluster-level redundancy within a distributed storage management system to address various node-level error scenarios are provided. Rather than making use of a generalized one-size-fits-all approach in an effort to reduce complexity, an approach tailored to the node-level error scenario at issue may be performed to avoid doing more than necessary. According to one embodiment, responsive to identification of a failed RAID stripe by a node of a cluster of a distributed storage management system, for each block ID of multiple block IDs associated with the failed RAID stripe, a data block is restored corresponding to the block ID by reading the data block from another node of the cluster having a redundant copy of the data block; and writing the redundant copy of the data block to a storage area of the node that is unaffected by the failed RAID stripe.


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