Samsung Electronics Co., Ltd.

Hyunkoo Kim

Junseok Park

Suhwan Kim

Minsik Son

Disclosed is a method of operating a storage controller which communicates with a host and a non-volatile memory device. The method includes receiving a first state transition request for a device open from the host, performing a first active zone refresh operation of the non-volatile memory device in response to the first state transition request such that a zone, which has an active state before an immediately previous power-off is processed to a sequentially writable state in one block, receiving, by a first buffer memory, first target data to be stored in a first block of a first zone among the plurality of zones from the host depending on a first write request, receiving a first power-off request from the host, during processing the first write request, and storing the first target data in a first power loss protection (PLP) block of the non-volatile memory device.

Storage controller performing active zone refresh, method of operating storage controller, and method of operating storage device having storage controller

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Suwon-si, South Korea

Hyunkoo Kim