Memory system capable of preventing read fail, including reading a second memory block through a dummy read operation, when an erase operation is performed to a first memory block, and operating method thereof

摘要

A memory system includes: a memory device; and a non-erase block management device suitable for determining, when an erase operation is performed on a first memory block included in the memory device, whether to perform a read operation on a second word line of a second memory block, according to a location of a first word line, which is a target word line for a read operation on the second memory block, wherein the second word line includes a target word line for a dummy read operation.