Invention Grant
- Patent Title: Decentralized RAID scheme having distributed parity computation and recovery
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Application No.: US16015054Application Date: 2018-06-21
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Publication No.: US10929229B2Publication Date: 2021-02-23
- Inventor: Radu I. Stoica , Roman A. Pletka , Ioannis Koltsidas , Nikolas Ioannou , Antonios K. Kourtis , Sasa Tomic , Charalampos Pozidis , Brent W. Yardley
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Zilka-Kotab, P.C.
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G06F11/10 ; G06F3/06

Abstract:
A computer-implemented method, according to one embodiment, includes: receiving a write request at a storage system which includes more than one storage device, determining a storage location for data included in the write request, and determining a storage location for parity information corresponding to the data included in the write request. A first copy of the data included in the write request is sent to a first storage device which corresponds to the storage location for the data included in the write request. Moreover, a second copy of the data included in the write request is sent to a second storage device which corresponds to the storage location for the parity information. One or more instructions to compute the parity information via a decentralized communication link with the remaining storage devices are sent to the second storage device. The first storage device is different than the second storage device.
Public/Granted literature
- US20190391877A1 DECENTRALIZED RAID SCHEME HAVING DISTRIBUTED PARITY COMPUTATION AND RECOVERY Public/Granted day:2019-12-26
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