Samsung Electronics Co., Ltd.

Jaerim Oh

Jeong-Eun Kim

Disclosed is a storage device comprises a non-volatile memory configured to store data; a storage controller configured to determine a time to back up recovery data when a sudden power-off occurs and to perform a data dump operation according to a dump level determined based on the determined time when a user data dump fails; and a power loss protection (PLP) integrated circuit configured to measure at least one of a discharge time or remaining time of an auxiliary power supply when the sudden power-off occurs and to provide at least one of discharge time information or remaining time information to the storage controller, wherein the storage controller is configured to determine a minimum recovery data backup time in case of a user data dump failure using the at least one of the discharge time information or the remaining time information.

Storage device and recovery data backup method thereof

A storage device includes a main non-volatile memory and a controller communicating with a host according to a predetermined interface protocol and controlling the main non-volatile memory. The controller includes a special function register (SFR) storing parameters indicating connection characteristics between the storage device and the host. The controller receives a parameter change command according to the interface protocol from the host, extracts one or more descriptors respectively including an SFR address and a parameter value corresponding to a target parameter to be changed from the parameter change command, and tunes an interface by executing the one or more descriptors to write the parameter value into the SFR.

Growing community of inventors

SUWON-SI, South Korea

Jaerim Oh