Controller for managing bad block, storage device including the same, and method of operating the storage device

Abstract

The present technology relates to a semiconductor device. According to the present technology, a storage device capable of managing a bad block while maintaining interleaving performance may include a data storage device including a plurality of dies connected to a channel, and each of the dies includes a plurality of planes capable of a plane interleaving operation. Each of the planes includes a data storage device including a plurality of memory blocks, and a controller configured to control, when a bad block occurs in a target die among the plurality of dies, the data storage device to determine a replacement die corresponding to the target die among the dies based on replacement die recommendation information and control the data storage device to replace the bad block with a preliminary block included in the replacement die based on information on whether the plane interleaving operation is possible.