Dynamic Cluster Allocation for Storage Write Performance
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Solution Overview
Problem
Current information processing devices, such as personal computers, smartphones, and tablets, statically apply a single cluster allocation policy for various data writing methods, leading to reduced write performance, shorter storage medium lifespan, and file system fragmentation.
Innovation Solution
An information processing apparatus and method that dynamically determines the allocation policy for clusters based on the number of files, file size, data type, and write requests, using a controller to select blocks for writing, optimizing between sequential and parallel allocation policies for improved performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single static cluster allocation policy is used for all data writing methods, then the device complexity is reduced, but the write performance is lowered and storage medium lifespan is shortened
Solution Approach 1:
The patent implements dynamic cluster allocation policies that automatically adapt based on the type of data being written. The system monitors write operations and switches between different allocation strategies (sequential allocation for continuous writes, parallel allocation for multiple simultaneous writes) to optimize performance for each specific writing scenario rather than using a fixed single policy.
Solution Approach 2:
The patent changes the allocation policy parameters dynamically based on detected writing conditions. When continuous writing is detected, the system switches to sequential allocation with specific cluster size parameters; when multiple simultaneous writes are detected, it switches to parallel allocation with different cluster selection parameters, thereby optimizing performance for each writing pattern.
2Ease of operation
If a single static cluster allocation policy is used for all data writing methods, then the ease of operation is maintained, but the storage medium lifespan is shortened
Solution Approach 1:
The system performs self-optimization by automatically detecting the type of write operation and selecting the appropriate allocation policy without user intervention. The controller monitors write patterns, identifies whether continuous or parallel writing occurs, and autonomously switches allocation strategies to protect storage medium lifespan while maintaining transparent operation for the user.
3Device complexity
If a single static cluster allocation policy is used for all data writing methods, then the device complexity is reduced, but file system fragmentation occurs
Solution Approach 1:
The patent segments the allocation policy into distinct strategies tailored for different writing scenarios. It separates sequential allocation for continuous writes from parallel allocation for multiple simultaneous writes, allowing each segment to manage cluster assignment independently and prevent fragmentation by keeping related data blocks contiguous within their respective allocation contexts.
Data Source
AI summary
An information processing apparatus includes a controller configured to obtain the number of files to be written to a storage medium whose storage area configured in units of a predetermined block and whose stored data is erased in units of the predetermined block, and to determine a policy for selecting, based on the obtained number of files, the block to which the one or more files are to be written.