Invention Grant
- Patent Title: Data recovery in a distributed storage system
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Application No.: US14876063Application Date: 2015-10-06
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Publication No.: US10360119B2Publication Date: 2019-07-23
- Inventor: Martin Jess , Joseph Moore , Ziling Huang
- Applicant: NetApp, Inc.
- Applicant Address: US CA Sunnyvale
- Assignee: NETAPP, INC.
- Current Assignee: NETAPP, INC.
- Current Assignee Address: US CA Sunnyvale
- Agency: Haynes and Boone, LLP
- Main IPC: G06F11/10
- IPC: G06F11/10 ; G06F11/20

Abstract:
A system, method, and machine-readable storage medium for recovering data in a distributed storage system are provided. In some embodiments, the method includes identifying a failing storage device of a first storage node having an inaccessible data segment. When it is determined that the inaccessible data segment cannot be recovered using a first data protection scheme, a first chunk of data associated with the inaccessible data segment is identified and a group associated with the first chunk of data is identified. A second chunk of data associated with the group is selectively retrieved from a second storage node such that data associated with an accessible data segment of the first storage node is not retrieved. The inaccessible data segment is recovered by recovering the first chunk of data using a second data protection scheme and the second chunk of data.
Public/Granted literature
- US20170097875A1 Data Recovery In A Distributed Storage System Public/Granted day:2017-04-06
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