Dynamic Data Path Architecture for Storage I/O Optimization
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Solution Overview
Problem
Current data storage systems lack the ability to dynamically customize data paths for storage objects based on specific data services, leading to inefficient use of resources and potential bottlenecks in I/O operations.
Innovation Solution
A method and system for determining and modifying data paths by receiving administrative commands to enable, disable, or modify data services for storage objects, dynamically adding or removing components from the call stack based on the required services, allowing for customized data paths for each storage object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed data path configuration is used for all storage objects, then system simplicity is maintained, but I/O operation efficiency deteriorates due to bottlenecks and resource inefficiency
Solution Approach 1:
The data path configuration is segmented into multiple customizable components rather than using a monolithic fixed structure. Each storage object can have its data path divided into discrete service components that are selectively activated based on specific needs, allowing efficient I/O operations without universal complexity.
Solution Approach 2:
The data path configuration transitions from a static fixed structure to a dynamic customizable structure. The system can modify the data path configuration in real-time based on administrative commands and service requirements, enabling optimization of I/O operations without permanent structural changes.
2Adaptability or versatility
If data services are dynamically customized for each storage object, then adaptability and performance are improved, but system complexity increases
Solution Approach 1:
A universal data path configuration framework is provided that can serve multiple storage objects with different requirements. The same base structure and service components are reused across different storage objects, enabling customization without proportional increases in overall system complexity.
Solution Approach 2:
The system enables self-service customization where data services are automatically configured and modified based on administrative commands and service requirements. The data path configuration adjusts itself without requiring manual intervention for each customization, reducing operational complexity.
3Adaptability or versatility
If the data path configuration is modified while I/O operations are in progress, then service flexibility is improved, but system stability may deteriorate
Solution Approach 1:
The system performs preliminary validation and preparation before modifying data path configurations during active I/O operations. Administrative commands are processed and configured in advance where possible, and modifications are applied in a controlled manner that pre-checks for potential stability issues.
Solution Approach 2:
The system implements feedback mechanisms that monitor the state of I/O operations and data path modifications in real-time. This feedback allows the system to adjust modification timing and methods to maintain stability, ensuring that changes are applied when they will have minimal impact on ongoing operations.
Data Source
AI summary
A data path for each storage object may be customized for the particular services enabled for the storage object. Techniques for determining and using data paths may include: receiving an administrative command on a control path, wherein the administrative command is a request to perform any of enable, disable and modify a data service for a first storage object; determining, in accordance with the administrative command, a modification to be made to a current configuration of a data path for the first storage object in order to implement the administrative command, wherein the current configuration includes a plurality of components forming a call stack invoked in connection with I/O processing for I/Os directed to the first storage object; and modifying the data path in accordance with the modification determined.