Dynamic Data Flow Management in Multiple Cache Architecture

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Solution Overview

Problem

Data storage devices often face performance optimization challenges when encountering different workloads, as existing optimizations may not be optimal for varying conditions, leading to inefficiencies in data storage and management.

Innovation Solution

A system with a multiple cache architecture that detects attributes affecting data storage workloads and dynamically selects data flow schemes to optimize performance, using a memory management unit to implement various data flow schemes across different types of memory, such as DRAM, Flash memory, and media cache, based on detected attributes like data type, host type, and throughput requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a data storage device uses a fixed performance optimization for a specific workload, then performance is improved for that workload, but performance deteriorates when a different workload occurs

Engineering Contradiction:
Improvedata storage performanceVSAvoidworkload adaptability
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic data flow schemes that automatically adjust data storage paths and cache allocation based on detected workload attributes. The system transitions from static optimization to dynamic adaptation by monitoring workload characteristics and selecting appropriate data flow schemes in real-time, resolving the contradiction between fixed performance optimization and workload versatility.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters (data flow schemes, cache allocation, storage paths) based on detected workload attributes. By dynamically modifying these parameters according to workload conditions, the system maintains optimal performance across diverse workloads rather than being locked into a single optimization configuration.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If a data storage device uses multiple types of memory with different characteristics, then storage versatility is improved, but system complexity increases

Engineering Contradiction:
Improvememory type versatilityVSAvoidmultiple cache architecture complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent creates a universal data flow management system that handles multiple memory types (DRAM, Flash, media cache) through a single intelligent controller. This controller provides multi-functional capabilities by detecting workload attributes and dynamically routing data through appropriate memory paths, reducing the operational complexity despite having diverse memory components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The intelligent controller acts as an intermediary between the host and multiple memory types. It abstracts the complexity of managing different memory characteristics by providing a unified interface and automatically selecting appropriate data flow schemes, thereby simplifying the system from the host's perspective while enabling versatile memory utilization.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If a data storage device dynamically selects data flow schemes based on workload attributes, then performance optimization is improved, but control complexity increases

Engineering Contradiction:
Improveperformance optimizationVSAvoiddata flow control complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system implements self-service by automatically detecting workload attributes and selecting appropriate data flow schemes without external intervention. The intelligent controller autonomously monitors system state, identifies optimal data flow paths, and executes scheme transitions, thereby achieving performance optimization while keeping control logic centralized and manageable.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system employs feedback mechanisms where the intelligent controller continuously monitors workload attributes and performance metrics, then adjusts data flow schemes accordingly. This closed-loop control enables adaptive performance optimization while maintaining manageable complexity through systematic decision-making based on real-time system state information.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS8463984B2Dynamic data flow management in a multiple cache architecture
Publication Date: 2013.06.11 SEAGATE TECH LLC
  • US8463984B2 patent drawing
  • US8463984B2 patent drawing
  • US8463984B2 patent drawing

AI summary

The disclosure is related to systems and methods of dynamic dataflow in a multiple cache architecture. In an embodiment, a system having a data storage device with a multiple cache architecture may detect at least one attribute affecting a data storage workload or data storage performance. The system may select at least one of a plurality of data flow schemes based on the at least one attribute, which may be done to optimize the data storage workload for various conditions. In another embodiment, a data storage controller may automatically and dynamically select one of multiple data flow schemes within a data storage device having a multiple cache architecture. The data storage controller may monitor attributes to determine which data flow scheme to select for various workloads of the data storage device.