Auxiliary Storage Backup Controller Selective Recovery
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Solution Overview
Problem
Conventional auxiliary storage devices lack the ability to selectively manage backup information, leading to inefficient use of backup storage capacity and increased costs, as they do not analyze access information to determine whether files or directories require backup, resulting in unnecessary storage of temporary files and unused space.
Innovation Solution
The proposed auxiliary storage device includes a controller that analyzes access information from the host computer to identify file system objects, allowing for selective generation and storage of recovery information, thereby reducing the capacity needed for backups and enabling users to back up only specified files or directories, with the option to process time-consuming tasks in the background to maintain processing speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backup information is recorded every time the host computer accesses the auxiliary storage device, then recovery reliability is improved, but backup storage capacity increases significantly
Solution Approach 1:
The patent extracts only the essential recovery information (file system structure, boot records, directory structures) needed for system recovery, rather than backing up all accessed data. This selective extraction maintains recovery reliability while significantly reducing the backup storage capacity required.
Solution Approach 2:
The patent applies partial action by performing selective backup of only critical system components and configuration data rather than complete data duplication. This partial backup approach provides sufficient recovery capability for system-level failures without the excessive storage overhead of full backups.
2Quantity of substance
If the auxiliary storage device analyzes access information to determine backup necessity, then backup storage capacity is reduced, but device complexity increases
Solution Approach 1:
The patent implements preliminary action by pre-identifying and marking critical system files, boot records, and directory structures that require backup before actual backup operations occur. This preliminary identification simplifies the backup decision-making process and reduces the need for complex real-time analysis during normal operations.
Solution Approach 2:
The auxiliary storage device performs self-service by autonomously analyzing access patterns and automatically determining which data requires backup based on predefined criteria for system-critical information. This self-service capability reduces the need for external management complexity while maintaining efficient backup selection.
3Reliability
If the auxiliary storage device stores recovery information for temporary files, then recovery completeness is improved, but backup storage capacity increases unnecessarily
Solution Approach 1:
The patent applies local quality by differentiating between data types and applying different backup policies: critical system files and structures receive comprehensive backup protection, while temporary files and user-generated content receive selective or no backup. This localized quality approach ensures recovery completeness for essential system recovery while avoiding unnecessary storage consumption for non-critical temporary files.
Data Source
AI summary
A device that can efficiently manage capacity of a backup auxiliary storage device in an auxiliary storage device and a method of managing backup auxiliary storage device are disclosed. The auxiliary storage device includes an original auxiliary storage device, a backup auxiliary storage device, and a user input device. A controller that controls these devices is disclosed. The backup auxiliary storage device stores recovery information about the original auxiliary storage device. The user input device receives a user input for switching between a normal mode and a backup mode. When in the normal mode, the controller controls the auxiliary storage device so that a host computer boots using an OS in the original auxiliary storage device and is not able to access the backup auxiliary storage device.