Memory Controller Zone Block Data Movement
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Solution Overview
Problem
Current memory systems face inefficiencies in data movement speed due to frequent map updates during page-based mapping, which slows down data transfer operations.
Innovation Solution
A memory system with a memory controller that performs data movement operations between zone blocks and updates map data to reflect these movements, reducing the frequency of map updates by storing data in additional zone blocks and marking original data as invalid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If page-based mapping is used to manage data storage, then data can be accessed efficiently, but map updates occur frequently which slows down data movement operations
Solution Approach 1:
The memory space is divided into multiple zone blocks, each independently manageable. This segmentation allows data movement operations to be performed on individual zone blocks without requiring updates to the entire mapping structure, thereby reducing the frequency and time of map updates while maintaining efficient data access
Solution Approach 2:
Zone blocks are pre-allocated and prepared in advance for data storage. When data movement is needed, the destination zone block is already ready, eliminating the need for complex real-time mapping calculations and updates during the data transfer operation, thus improving data movement speed
Data Source
AI summary
Provided herein may be a memory controller and a memory system including the same. The memory system may include a plurality of memory devices, each including a plurality of zone blocks, a buffer memory configured to store pieces of map data that are respectively allocated to a plurality of zones corresponding to logical address groups provided by a host and that indicate correspondence relationships between the plurality of zones and physical addresses of the plurality of zone blocks, and a memory controller configured to perform a data movement operation of storing data, which is stored in a zone block allocated to one of the plurality of zones, in an additional zone block based on information related to the plurality of zone blocks, and update a physical address of the zone block corresponding to the one zone to a physical address of the additional zone block.