Data Storage Layout by Data Life Cycle to Cut Write Amplification

Solution Overview

Problem

Existing storage technologies face challenges in data retention and recovery times, exacerbated by mixed data storage leading to longer recovery times, increased data migration for garbage collection, and greater write amplification.

Innovation Solution

A method and device for data storage that identifies and moves data between erasing and writing units to ensure a consistent life cycle, reducing recycling time and data migration by storing data with the same life cycle together, thereby minimizing write amplification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If different data is mixed and stored in an erasing and writing unit, then storage capacity is utilized, but recovery time is prolonged and garbage collection migration increases

Engineering Contradiction:

Improvestorage capacity utilizationVSAvoidrecovery time

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The storage device segments data based on life cycles into different erasing and writing units. Data with the same life cycle is grouped together and stored in dedicated units, preventing mixing of different data types. This segmentation enables independent management and recovery of data groups, reducing overall recovery time while maintaining storage capacity utilization.

Inventive Principle:

Principle #1Segmentation

2Productivity

If different data is mixed and stored in an erasing and writing unit, then storage capacity is utilized, but write amplification increases

Engineering Contradiction:

Improvestorage capacity utilizationVSAvoidwrite amplification

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The storage device segments data based on life cycles into different erasing and writing units. Data with the same life cycle is grouped together and stored in dedicated units, preventing mixing of different data types. This segmentation enables independent management and recovery of data groups, reducing overall recovery time while maintaining storage capacity utilization.

Inventive Principle:

Principle #1Segmentation

3Productivity

If data with different life cycles is stored together, then storage space is optimized, but garbage collection migration increases

Engineering Contradiction:

Improvestorage space optimizationVSAvoidgarbage collection migration

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The storage device segments data based on life cycles into different erasing and writing units. Data with the same life cycle is grouped together and stored in dedicated units, preventing mixing of different data types. This segmentation enables independent management and recovery of data groups, reducing overall recovery time while maintaining storage capacity utilization.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20260111121A1Device for and method of storing data

Publication Date: 2026.04.23 SAMSUNG ELECTRONICS CO LTD

AI summary

A data storage device and a method of operating same are provided. The method includes: based on identifying that first data stored in a first erasing and writing unit is to be moved, identifying a second erasing and writing unit as a destination for the first data; and moving the first data from the first erasing and writing unit to the second erasing and writing unit, wherein a life cycle of second data stored in the second erasing and writing unit is the same as a life cycle of the first data stored in the first erasing and writing unit.