Invention Grant
- Patent Title: Command tags
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Application No.: US18334988Application Date: 2023-06-14
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Publication No.: US12265737B2Publication Date: 2025-04-01
- Inventor: Erik Smith , David Black , Boris Glimcher , Vinay Rao
- Applicant: DELL PRODUCTS L.P.
- Applicant Address: US TX Round Rock
- Assignee: DELL PRODUCTS L.P.
- Current Assignee: DELL PRODUCTS L.P.
- Current Assignee Address: US TX Round Rock
- Agency: BAUGH LAW, LLC
- Priority: IN202311005988 20230130
- Main IPC: G06F3/06
- IPC: G06F3/06

Abstract:
Embodiments of using command tags are described to prevent data corruption in a multi-path network in an NVMe over Fabrics (NVMe-OF) environment. A command tag is incorporated in a written command send from a host for command identification. Once the host detects an issue of a first link between the host and namespace, the host may immediately send, using a second link, a retry of a command that was previously sent by the host to a first controller via the first link. The retry of the command comprises the same command tag which allows the first and second controllers to detect an execution condition of the first write command, and thus avoiding repeat execution of the first write command by the first controller and the second controller. Therefore, data corruption may be addressed efficiently to the root cause.
Public/Granted literature
- US20240256181A1 COMMAND TAGS Public/Granted day:2024-08-01
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