Method for Delaying Fundamental Reset in Power Loss Protection (PLP) Enabled Devices

Apparatus and methods for protecting in-flight data during a fundamental reset of a SSD by a connected host are presented. In embodiments, a controller for the SSD includes an input interface configured to receive commands from the host over a link, and processing circuitry coupled to the input inte...

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Bibliographische Detailangaben
Hauptverfasser: HAHN, Judah Gamliel, HELLWIG, Horst-christoph Georg, INBAR, Karin
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:Apparatus and methods for protecting in-flight data during a fundamental reset of a SSD by a connected host are presented. In embodiments, a controller for the SSD includes an input interface configured to receive commands from the host over a link, and processing circuitry coupled to the input interface. The processing circuitry is configured to, in response to receiving a reset command from the host, reset the link and an address space of the SSD, complete a flush of in-flight data from temporary buffers to non-volatile storage of the SSD, and, during an initialization sequence performed by the host, perform an internal reset. In embodiments, in response to the SSD performing the internal reset, the host's state of the SSD is reset, and the host is caused to re-initialize the link and configure the address space of the SSD.