Segmented Data Storage Reducing Read Latency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing data storage systems in memory devices face challenges in efficiently managing user data and redundancy information, leading to increased latency and computational complexity, particularly when error correction is required, due to the separate handling of data and redundancy bits.
Innovation Solution
The system segregates data storage into two distinct areas: one for user data and another for redundancy information, using separate access commands and storage media to optimize storage efficiency and reduce latency by only accessing redundancy data when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If data and redundancy information are stored together in the same storage area, then storage space utilization is improved, but read latency increases because redundancy data must be accessed even when not needed
Solution Approach 1:
The patent divides the storage system into two separate storage areas: a first storage area for user data and a second storage area for redundancy information. This segmentation allows independent access to each area, enabling the system to retrieve user data without unnecessarily accessing redundancy data, thereby reducing read latency while maintaining efficient storage space utilization.
2Reliability
If redundancy information is always accessed and processed during data retrieval, then data reliability is improved, but computational complexity increases
Solution Approach 1:
The patent implements a selective redundancy access mechanism where the system evaluates whether redundancy information is actually needed before accessing it. The controller determines if the user data can be reliably retrieved without redundancy processing, and only accesses the second storage area when necessary. This partial action approach maintains data reliability while significantly reducing computational complexity during normal read operations.
3Loss of time
If separate storage areas for data and redundancy information are used, then read latency is reduced, but device structure complexity increases
Solution Approach 1:
The patent employs a universal controller that manages both the first storage area for user data and the second storage area for redundancy information through a unified interface and control logic. This multi-functional controller handles data writing, reading, and redundancy management across both storage areas, reducing the need for separate dedicated hardware components and thereby minimizing the increase in device structure complexity while still achieving reduced read latency.
Data Source
AI summary
A method for data storage includes assigning in a memory that includes one or more storage devices a first storage area for storage of user data, and a second storage area, which is separate from the first storage area, for storage of redundancy information related to the user data. Input data is processed to produce redundancy data, and the input data is stored in the first storage area using at least one first write command. The redundancy data is stored in the second storage area using at least one second write command, separate from the first write command.