Storage Array Controller Transmission Parameter Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional storage medium array controllers struggle to optimize transmission quality for high-speed serial interfaces due to varying electrical characteristics and mount positions of HDDs, leading to degraded transmission quality and reliability.
Innovation Solution
A storage medium array controller that receives and sets specific data transmission parameters for each HDD based on its identification and mount position information, using a transmission optimization parameter table to ensure optimal transmission functions across different HDD models and positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the transmission rate is increased to 3 GHz or higher, then the data transmission speed is improved, but the transmission quality degrades due to skin effect, high-frequency loss, and impedance mismatching
Solution Approach 1:
The patent applies local quality by setting different transmission parameters (preemphasis degree, equalizer rate, output amplitude) for different HDD mount positions and models. The controller dynamically adjusts parameters based on the specific slot position and HDD characteristics, ensuring optimal transmission quality at each location rather than using uniform settings across the entire system.
Solution Approach 2:
The patent implements dynamics by making transmission parameters adjustable and adaptable rather than fixed. The controller automatically detects HDD mount position and identification information, then dynamically selects and applies appropriate transmission parameters from storage tables, allowing the system to adapt to changing conditions and maintain reliability at high transmission rates.
2Device complexity
If fixed transmission function settings are used for all HDDs, then the device complexity is reduced, but the transmission quality cannot be optimized for all HDD models and positions
Solution Approach 1:
The patent applies preliminary action by pre-storing optimal transmission parameters in tables within the controller before operation begins. During runtime, the controller simply retrieves the appropriate parameters based on HDD identification and mount position, avoiding complex real-time calculations while maintaining optimized transmission quality for each specific configuration.
3Adaptability or versatility
If the backboard transmission length is increased, then more HDD slots are available, but the transmitted waveform distortion increases and transmission quality degrades
Solution Approach 1:
The patent addresses this contradiction by applying local quality through position-specific parameter adjustment. Each slot position on the backboard has pre-determined optimal transmission parameters stored in the controller, allowing the system to compensate for varying transmission lengths and maintain consistent quality across all slots regardless of distance from the controller.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures stable transmission quality and improved reliability of the storage medium array apparatus by dynamically adjusting transmission parameters to match each HDD's unique characteristics, even at higher transmission rates.
Implementation Method 1
parameters set in communication LSI transmission function setting section 132 may be set to fixed values in advance. Therefore, the transmission quality cannot be optimized with respect to all HDDs used and all slot positions
Implementation Method 2
if the transmission rate is about 3 GHz or higher, for example, then effects including the skin effect of a wiring pattern, high-frequency loss due to dielectric loss, and multiple reflection due to impedance mismatching at a connector
Implementation Method 3
high-frequency loss due to dielectric loss
Implementation Method 4
multiple reflection due to impedance mismatching at a connector
Data Source
AI summary
A storage medium drive is controllable by a storage medium array controller. the storage medium array controller receives a data storage medium drive information and the storage medium array controller sets a data transmission parameter with respect to the storage medium drive based on the data storage medium drive information.