Invention Application
- Patent Title: Environmental Aware Witness for Active-Active Storage Cluster Nodes
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Application No.: US16777687Application Date: 2020-01-30
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Publication No.: US20200167233A1Publication Date: 2020-05-28
- Inventor: Svetlana O. Sokolova , Benjamin Yoder , Deepak Vokaliga
- Applicant: EMC IP Holding Company LLC
- Main IPC: G06F11/14
- IPC: G06F11/14 ; G06F11/20

Abstract:
The system, devices, and methods disclosed herein relate to a dynamic, robust method for choosing a “winner” in an active-active data storage network. In the systems and methods disclosed herein, two or more intelligent nodes within an active-active data storage network periodically exchange operational parameters in an ongoing negotiation regarding who should be the winner in the event of a communication failure within the network. The winner is chosen dynamically based on the operational parameters. A witness is kept apprised of the winner. In the event of a communication failure between the two nodes, the winner is chosen by the witness based on the most recently negotiated lock file reported by one or both of the nodes.
Public/Granted literature
- US10997028B2 Environmental aware witness for active-active storage cluster nodes Public/Granted day:2021-05-04
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