Virtual Data Block Misalignment Detection and Realignment
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Solution Overview
Problem
Misalignment between virtual data formats and underlying data formats in storage systems leads to performance degradation due to increased I/O operations, as virtual data blocks span multiple underlying storage blocks, resulting in slower access times for virtual machines and applications.
Innovation Solution
A method to detect misalignment by querying metadata within virtual data objects to determine the virtual data format and comparing it with the underlying data format, allowing for realignment of virtual data structures to ensure proper alignment, thereby reducing unnecessary I/O operations and improving access times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If virtual data blocks are stored independently of underlying storage blocks, then virtual data format flexibility is improved, but I/O operation efficiency deteriorates due to misalignment
Solution Approach 1:
The patent applies preliminary action by detecting misalignment between virtual and underlying data formats before I/O operations occur. The system queries metadata to determine virtual data format, compares it with underlying storage format, and identifies misalignment conditions in advance, allowing for proactive remediation rather than reactive performance tuning.
Solution Approach 2:
The patent employs parameter changes by modifying the virtual data format parameters (block size, offset) to align with the underlying storage format. When misalignment is detected, the system adjusts these parameters to ensure virtual data blocks properly align with underlying storage blocks, thereby optimizing I/O efficiency while maintaining format flexibility.
2Quantity of substance
If virtual data blocks span multiple underlying storage blocks, then storage utilization is improved, but access time deteriorates due to increased I/O operations
Solution Approach 1:
The patent replaces the mechanical I/O operation system with a metadata-driven detection and alignment system. Instead of relying on physical block alignment alone, the system uses metadata queries to detect misalignment and employs logical alignment through parameter adjustment, substituting physical optimization with intelligent software-based alignment.
Solution Approach 2:
The patent implements feedback by continuously monitoring the alignment between virtual and underlying data formats through metadata queries. The system provides feedback on misalignment conditions and triggers corrective actions to realign the data structures, creating a closed-loop system that maintains optimal alignment and minimizes access time.
3Productivity
If alignment detection and correction mechanisms are implemented, then I/O operation efficiency is improved, but system complexity increases
Solution Approach 1:
The patent applies self-service by enabling the storage system to automatically detect and correct its own alignment issues without external intervention. The system queries its own metadata, compares formats, and performs self-correction through parameter adjustment, eliminating the need for complex external alignment tools or manual configuration.
Solution Approach 2:
The patent introduces metadata as an intermediary between the virtual data format and underlying storage format. This metadata layer serves as a mediator that enables detection and correction of misalignment without requiring direct complex interactions between the virtual and physical storage systems, simplifying the overall system architecture.
Data Source
AI summary
One or more techniques and/or systems are provided for detecting misalignment between a virtual data format and an underlying data format. A virtual data object, such as a virtual machine, may be stored within a storage device using an underlying data format. The virtual data object may comprise one or more virtual data structures, such as a virtual partition. The virtual partition may be stored within the virtual data object according to a virtual data format. The virtual data format may be compared with the underlying data format to determine whether the virtual data structure is misaligned within the storage device. Such misalignment may lead to virtual data blocks of the virtual data structure overlapping underlying data blocks, which may degrade (e.g., I/O) performance. Accordingly, one or more misaligned virtual data structures may be realigned within the storage device to address misalignment and/or improve performance.