Flash Memory Metadata Storage via Block-Level Merging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Flash memory systems face difficulties in handling page-specific metadata due to the need for additional storage space in flash memory devices and RAM, as each page requires separate entries, which complicates management and increases resource requirements.
Innovation Solution
Treat certain page-specific metadata as block-specific by writing all pages of a block simultaneously according to a predefined plan, allowing a common metadata value to be used for all pages, thereby reducing storage and RAM needs without sacrificing accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If page-specific metadata is stored separately for each page, then metadata accuracy is improved, but storage space requirements and device complexity increase
Solution Approach 1:
The patent merges page-specific metadata with block-level metadata by writing all pages of a block simultaneously according to a predefined plan. This allows a common metadata value to be used for all pages in the block, reducing storage requirements while maintaining accuracy through the simultaneous write operation that ensures consistency across all pages.
Solution Approach 2:
The patent makes metadata serve multiple functions by using a single block-level metadata entry to represent all pages within a block. This universal metadata approach reduces the quantity of metadata stored while still providing accurate information for all pages through the simultaneous write mechanism.
2Measurement precision
If page-specific metadata is stored separately for each page, then metadata accuracy is improved, but RAM requirements and device complexity increase
Solution Approach 1:
The patent combines page-specific metadata management with block-level operations by implementing simultaneous writes for all pages in a block. This merging approach reduces RAM requirements and simplifies device complexity while maintaining metadata accuracy through the coordinated write process.
Solution Approach 2:
The patent creates a universal metadata management system where a single block-level metadata entry serves all pages within the block. This universal approach reduces the complexity of managing separate metadata for each page while maintaining accuracy through the simultaneous write operation.
3Quantity of substance
If all pages of a block are written simultaneously according to a predefined plan, then storage and RAM requirements are reduced, but writing flexibility may be limited
Solution Approach 1:
The patent applies preliminary action by establishing a predefined write plan before executing the simultaneous write operation. This plan specifies which pages will be written and their content in advance, allowing the system to optimize storage and RAM usage while maintaining the ability to adapt to different write scenarios through the flexible predefined plan structure.
Data Source
AI summary
A method includes writing a first portion of received user data to a first page of a block of a memory according to a writing schedule and writing a subsequent portion of the received user data to another page of the block according to the writing schedule. The method includes storing first metadata corresponding to writing the first portion in the memory. The method further includes associating the first metadata with the subsequent portion.