MEMORY SYSTEM AND OPERATING METHOD OF MEMORY SYSTEM STORING DOORBELL INFORMATION IN THE BUFFER MEMORY

Embodiments of the present disclosure relate to a memory system and an operating method of the memory system. According to embodiments of the present disclosure, a memory system may include a buffer memory for storing tail doorbell information for N submission queues capable of storing a command fetched from the host or head doorbell information for N completion queues capable of storing an execution result of the command fetched from the host.