Controller and Storage Device Performing Efficient Buffer Allocation and Operating Method of Storage Device

Abstract

Disclosed are a controller and a storage device for efficient buffer allocation, and a method of operating the storage device. The storage device includes a non-volatile memory including a plurality of non-volatile memory cells, a buffer including a plurality of storage spaces to be allocated for a plurality of commands fetched from a host, and a storage controller connected to the non-volatile memory via a plurality of channels, the storage controller being configured to store status information corresponding to a workload of each of the plurality of channels and to allocate the buffer for the plurality of commands, the allocation being based on the status information.

Description

[0001] This application claims priority to Korean Patent Application No. 10-2016-0162305 filed with the Korean Intellectual Property Office on November 30, 2016, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] Methods and apparatus consistent with example embodiments relate to a controller, and more particularly, to a controller and a storage device and a method of operating the storage device that provide efficient buffer allocation. Background technique [0003] As a semiconductor memory device, a nonvolatile memory device includes memory cells for storing data in a nonvolatile manner. A flash memory device as an example of a nonvolatile memory device is used in various types of storage devices such as memory cards and solid state drives (SSDs), which can be used in various electronic systems such as mobile phones, digital Cameras, personal digital assistants (PDAs), portable computers, and stationary computers) are exp...

AI Technical Summary

Problems solved by technology

As such, the lifetime of holding the allocation of the buffer can be increased and the availability of the buffer can be reduced

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