Invention Grant
- Patent Title: Control plane method and apparatus for providing erasure code protection across multiple storage devices
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Application No.: US17339772Application Date: 2021-06-04
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Publication No.: US11429487B2Publication Date: 2022-08-30
- Inventor: Sompong Paul Olarig , David Schwaderer , Ramdas P. Kachare
- Applicant: Samsung Electronics Co., Ltd.
- Applicant Address: KR Suwon-si
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR Suwon-si
- Agency: Lewis Roca Rothgerber Christie LLP
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G06F11/10 ; G06F11/20

Abstract:
A system and method for providing erasure code protection across multiple storage devices. A data switch in a storage system connects a plurality of storage devices to a remote host. Each storage device is also connected to a controller, e.g., a baseboard management controller. During normal operation, read and write commands from the remote host are sent to respective storage devices through the data switch. When a write command is executed, the storage device executing the command sends a copy of the data to the controller, which generates and stores erasure codes, e.g., on a storage device that is dedicated to the storage of erasure codes, and invisible to the remote host. When a device fails or is removed, the controller reconfigures the data switch to redirect all traffic addressed to the failed or absent storage device to the controller, and the controller responds to host commands in its stead.
Public/Granted literature
- US20210294699A1 CONTROL PLANE METHOD AND APPARATUS FOR PROVIDING ERASURE CODE PROTECTION ACROSS MULTIPLE STORAGE DEVICES Public/Granted day:2021-09-23
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