Host Command Pointer Pattern Detection for NVMe Storage
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Solution Overview
Problem
Current storage devices face inefficiencies in processing host commands due to time-consuming searches for matching pointers and memory constraints when using the NVMe interface, particularly with large numbers of pointers.
Innovation Solution
Implementing a method to detect patterns in host command pointers, allowing storage devices to store them in a reduced pointer structure, which reduces memory usage and search time by storing only the unique parts of the pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the storage device stores all host command pointers in a complete pointer structure, then all pointers can be stored accurately, but memory usage increases and search time increases
Solution Approach 1:
The patent extracts only the unique portions of host command pointers and stores them in a reduced pointer structure. By identifying and storing only the distinguishing parts of pointers rather than complete pointer values, memory usage is reduced while maintaining the ability to accurately retrieve and match pointers during data transfer operations.
Solution Approach 2:
The patent changes the representation parameters of pointer storage by transforming complete pointer values into compressed representations that capture only essential unique characteristics. This parameter transformation allows the same information to be stored more efficiently, reducing memory requirements while preserving pointer identification capability.
2Reliability
If the storage device stores all host command pointers in a complete pointer structure, then all pointers can be stored accurately, but search time for matching pointers increases
Solution Approach 1:
By extracting and storing only the unique identifying portions of pointers, the search space is dramatically reduced. When a data segment is available for transfer, the storage device can quickly compare against the reduced set of unique pointer characteristics rather than searching through all complete pointer values, significantly reducing search time.
Solution Approach 2:
The patent performs preliminary analysis of host command pointers to identify and extract unique patterns before data transfer operations begin. This advance preparation organizes pointer information in a optimized structure that enables faster matching during actual data transfer, reducing the time loss during operational phases.
3Quantity of substance
If the storage device uses a reduced pointer structure, then memory usage decreases and search time decreases, but the complexity of analyzing and detecting pointer patterns increases
Solution Approach 1:
The storage device performs self-service by automatically analyzing incoming host command pointers to detect patterns and unique characteristics. This automated pattern recognition and extraction process eliminates the need for external intervention and establishes an optimized storage structure without requiring additional system resources or manual configuration.
Solution Approach 2:
The patent applies parameter changes to transform the pointer data representation, which simplifies the storage structure while managing analysis complexity. By changing how pointer information is represented and organized, the system achieves efficient storage without proportionally increasing analysis complexity.
Data Source
AI summary
The present disclosure generally relates to a method and device for detecting patterns in host command pointers. When a new command is received by a storage device from a host computer, host command pointers sent to the storage device are analyzed to detect any patterns within the host command pointers. If a pattern is detected, the storage device can store the host command pointers in a reduced pointer storage structure. Thereafter, the storage device can perform the command indicated by the host command pointers using the reduced pointer storage structure.