Invention Publication
- Patent Title: USE OF CLUSTER-LEVEL REDUNDANCY WITHIN A CLUSTER OF A DISTRIBUTED STORAGE MANAGEMENT SYSTEM TO ADDRESS NODE-LEVEL ERRORS
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Application No.: US18478149Application Date: 2023-09-29
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Publication No.: US20240028486A1Publication Date: 2024-01-25
- Inventor: Wei Sun , Anil Paul Thoppil , Anne Maria Vasu
- Applicant: NetApp, Inc.
- Applicant Address: US CA San Jose
- Assignee: NetApp, Inc.
- Current Assignee: NetApp, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: G06F11/16
- IPC: G06F11/16 ; G06F16/27 ; G06F11/10 ; G06F11/30 ; G06F3/06

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. According to one embodiment, a first node of multiple nodes of distributed storage system represented in a form of a cluster of the multiple of nodes, identifies the potential existence of an error associated with a Redundant Array of Independent Disks (RAID) stripe. A list of block identifiers (IDs) associated with the RAID stripe may then be identified. Rather than performing a traditional RAID recovery/reconstruction approach that is resource intensive in nature and that requires an excessive amount of rebuild time, a more efficient RAID stripe resynchronization process may be performed to restore data associated with the RAID stripe.
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