Method to switch between traditional ssd and open-channel ssd without data loss
AssigneeWestern Digital Technologies, Inc.
InventorsJameer Mulani, Anindya Rai, Saugata Das Purkayastha
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AssigneeWestern Digital Technologies, Inc.
InventorsJameer Mulani, Anindya Rai, Saugata Das Purkayastha
Estimating the term…
Apparatuses and techniques are provided for switching a solid-state device (SSD) between a traditional SSD mode and an open-channel SSD (OCSSD) mode. In one aspect, a set of commands are defined for communicating different types of data from a Flash Translation Layer (FTL) between the host and SSD. The commands can include different predetermined sets of bits which carry different types of FTL data in a standardized format. The commands can be transmitted using reserved data words in an interface specification which interfaces the host to the SSD. The commands can include commands to transfer a logical-to-physical address table, a validity bitmap and a wear table. A switch mode command can include a bit indicating whether the mode is to be switched from traditional SSD to OCSSD, or from OCSSD to traditional SSD.
An apparatus, comprising:
A method, comprising:
A method, comprising:
Dependencies are inferred from the claim text.