Magnetic Disk Management via Engine and Encapsulation Layers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In distributed storage systems of shingled recording hard disks, the lack of data isolation at the interface layer leads to security issues such as data leakage when interacting with external systems.
Innovation Solution
A magnetic disk management method and apparatus that utilize an engine layer with space files and an encapsulation layer with a file directory tree, enabling transparent data management operations and address association lists to isolate data by different space files, ensuring secure data storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If data interaction is performed through the upper interface layer, then ease of operation is improved, but data security deteriorates due to lack of isolation
Solution Approach 1:
The magnetic disk is divided into multiple independent magnetic disk spaces, each with its own address association list mapping logical addresses to physical addresses. This segmentation isolates data from different sources, allowing the upper interface layer to operate easily while preventing data leakage between spaces.
Solution Approach 2:
An address association list is introduced as an intermediary layer between the upper interface layer and the physical magnetic disk spaces. This intermediary maintains the mapping relationship between logical addresses and physical addresses, enabling easy data interaction while ensuring data isolation and security.
2Reliability
If multiple independent magnetic disk spaces are created, then data security is improved, but device complexity increases
Solution Approach 1:
The address association list serves multiple functions: it maps logical addresses to physical addresses, isolates data between different magnetic disk spaces, and manages storage allocation. This multi-functionality reduces the need for separate mechanisms for each function, thereby limiting the increase in device complexity.
Solution Approach 2:
The address association list combines address mapping, data isolation, and storage management functions into a single structure. By merging these functions, the system achieves data security across multiple magnetic disk spaces without proportionally increasing device complexity.
3Reliability
If data isolation is implemented through address association lists, then data security is improved, but manufacturing precision requirements increase
Solution Approach 1:
Instead of implementing complex physical isolation mechanisms that would require high manufacturing precision, the patent uses logical address mapping through address association lists. This copying approach creates virtual isolation without requiring precise physical manufacturing, thereby maintaining data security while reducing manufacturing precision requirements.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The present application discloses a magnetic disk management method, an apparatus and an electronic device by providing an engine layer including a plurality of space files and an encapsulation layer including a file directory tree of a space file structure; where the engine layer responds to a data management operation performed for a target space file of the file directory tree output by the engine layer, and a target magnetic disk space corresponding to the target space files is determined through the address association list of the encapsulation layer, and data management is performed on the data in the target magnetic disk space. Thereby, different data can be isolated by different space files when entering through the engine layer, which ensures that security issues such as leakage of the data in the magnetic disk will not occur.