Directory Deduplication Prioritization by Deduplication Ratio
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Solution Overview
Problem
Existing deduplication techniques lack the ability to prioritize directories based on their deduplication potential, leading to inefficient use of time and resources in freeing up space during deduplication processes.
Innovation Solution
Implementing a method to determine and prioritize directories based on their deduplication ratios, creating softlinks for directories with high deduplication ratios to be processed first, thereby optimizing the deduplication process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If deduplication is performed on all directories without prioritization, then complete deduplication is achieved, but time and computational resources are wasted on directories with low deduplication potential
Solution Approach 1:
The system performs preliminary analysis to calculate deduplication ratios for all directories before executing the deduplication process. This preliminary action enables prioritization by identifying which directories have the highest deduplication potential, allowing the system to process high-priority directories first and low-priority directories later or skip them entirely, thereby reducing total processing time and resource consumption.
2Productivity
If deduplication prioritizes high deduplication ratio directories first, then space optimization is achieved faster, but the system complexity increases due to ratio calculation and prioritization logic
Solution Approach 1:
The system segments the deduplication process into distinct phases: (1) analysis phase where deduplication ratios are calculated for each directory, (2) prioritization phase where directories are sorted by their ratios, and (3) execution phase where deduplication is performed on high-priority directories first. This segmentation allows the complex prioritization logic to be isolated and managed separately from the core deduplication functionality, making the overall system more manageable despite the added complexity.
3Speed
If softlinks are created for high deduplication ratio directories, then processing priority is improved, but additional storage overhead is introduced
Solution Approach 1:
The system introduces softlinks as intermediary objects that redirect to high-priority directories. These softlinks enable the deduplication process to quickly access and process target directories without directly manipulating the original directory structures. The storage overhead introduced by softlinks is minimal compared to the performance benefits gained from accelerated processing of high-priority directories.
Data Source
AI summary
A system can determine to perform deduplication on a group of directories in a file system. The system can determine respective deduplication ratios of respective directories of the group of directories, wherein the respective deduplication ratios comprise respective ratios of respective logical sizes of the respective directories to respective physical sizes of the respective directories. The system can perform the deduplication on a first subgroup of the group of directories that have respective deduplication ratios that satisfy a deduplication ratio criterion before performing deduplication on a second subgroup of the group of directories that have respective deduplication ratios that do not satisfy the deduplication ratio criterion.