公开(公告)号：US20240289240A1

公开(公告)日：2024-08-29

申请号：US18652325

申请日：2024-05-01

Applicant: NetApp, Inc.

Inventor： Wei Sun ,  Anil Paul Thoppil ,  Anne Marie Vasu

IPC: G06F11/16 ,  G06F3/06 ,  G06F11/10 ,  G06F11/30 ,  G06F16/27

CPC classification number: G06F11/1662 ,  G06F3/0622 ,  G06F3/064 ,  G06F3/0679 ,  G06F11/1088 ,  G06F11/3034 ,  G06F16/27

Abstract: Systems and methods that make use of cluster-level redundancy within a distributed storage 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.