Invention Grant
- Patent Title: Reconstructing lost data objects by generating virtual user files from available tiers within a node
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Application No.: US16664252Application Date: 2019-10-25
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Publication No.: US11494335B2Publication Date: 2022-11-08
- Inventor: Ramprasad Chinthekindi , Shyam Burkule , Kalidas Balakrishnan , Kalyan C Gunda , Subrahmanyam Josyula
- Applicant: EMC IP Holding Company LLC
- Applicant Address: US MA Hopkinton
- Assignee: EMC IP Holding Company LLC
- Current Assignee: EMC IP Holding Company LLC
- Current Assignee Address: US MA Hopkinton
- Agency: Staniford Tomita LLP
- Main IPC: G06F16/14
- IPC: G06F16/14 ; G06F16/13 ; G06F11/14 ; G06F16/31 ; G06F16/188

Abstract:
Embodiments of method and system are directed to a best effort method to reconstruct the corrupt files from available nodes or tiers and heal or repair the corrupt files. The method looks for the existence of fingerprints of the lost segments in available tiers on the nodes or across nodes within a cluster. The method discovers the copies of these missing segments, creates an Lp tree referring these discovered segments and creates a virtual file in the namespace. The file is then moved to the destination tier where the corruption exists, thus healing the corruption.
Public/Granted literature
- US20210124716A1 RECONSTRUCTING LOST DATA OBJECTS BY GENERATING VIRTUAL USER FILES FROM AVAILABLE TIERS WITHIN A NODE Public/Granted day:2021-04-29
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