METHOD FOR IMPLEMENTING PREDICTABLE LATENCY MODE FEATURE IN SSD, AND NON-VOLATILE MEMORY (NVM) BASED STORAGE DEVICE

A method includes: receiving, by a storage device from a core in a host, a request to provide exclusive resource to a command of a predefined submission queue of a non-volatile memory (NVM) set in the storage device, wherein the request pertains to operating the NVM set in a deterministic state; gen...

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Hauptverfasser: SINGH, Abhinav Kumar, TANDAVAPURA JAGADISH, Chandrashekar, NADAKUDITI, Srinivasa Raju, YELAKKURU PRABHUSWAMY, Manu
Format: Patent
Sprache:eng
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Zusammenfassung:A method includes: receiving, by a storage device from a core in a host, a request to provide exclusive resource to a command of a predefined submission queue of a non-volatile memory (NVM) set in the storage device, wherein the request pertains to operating the NVM set in a deterministic state; generating a virtual NVM set identifier for a virtual NVM set based on a predefined mapping of the predefined submission queue and the NVM set; determining a storage controller associated with the NVM set based on a predefined mapping of the predefined submission queue, the NVM set, and the virtual NVM set identifier; enabling at least one core to operate in a Predictable Latency Mode; and operating the storage controller and the NVM set in the deterministic state by allocating predetermined resources to execute the command and return data with a predictable latency.