Dynamic Host Interface Speed Adjustment in Storage Arrays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional storage arrays consume excessive power due to fixed host interface signaling speeds, which do not adapt to varying application loads, leading to inefficiencies in power usage and bandwidth utilization.
Innovation Solution
A system comprising an interface circuit and controller that dynamically adjusts host interface signaling speeds based on data traffic, application load, and performance thresholds, allowing for power-efficient operation by switching between supported speeds and entering low power modes when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the host interface signals at the fastest supported speed, then the bandwidth capability is maximized, but the power consumption increases significantly
Solution Approach 1:
The host interface signaling speed is made dynamic rather than fixed. The system continuously monitors application load and data traffic patterns, then adjusts the signaling speed accordingly. When load is low, the interface operates at slower speeds to reduce power consumption. When load increases, the speed is increased to maintain performance, thus resolving the contradiction between speed and power consumption.
Solution Approach 2:
The patent changes the operational parameter of signaling speed based on monitored conditions. By varying the speed parameter from fastest to slower speeds depending on application requirements, the system achieves both high performance when needed and low power consumption when not needed, resolving the technical contradiction.
2Productivity
If the host interface signals at the fastest supported speed, then the raw bandwidth is maximized, but the power bandwidth ratio deteriorates
Solution Approach 1:
The system implements feedback mechanisms that monitor application load and data traffic patterns. This feedback information is used to dynamically adjust the signaling speed, ensuring that the interface operates at the minimum necessary speed to meet performance requirements. This feedback-driven adjustment optimizes the power bandwidth ratio by avoiding excessive power consumption when full bandwidth is not required.
Solution Approach 2:
Instead of always operating at full speed (excessive action), the system applies partial action by operating at reduced speeds when the application load does not require full bandwidth. This partial operation reduces power consumption while maintaining adequate performance, thereby improving the power bandwidth ratio.
3Use of energy by moving object
If the interface speed is reduced to save power, then power consumption decreases, but the data transfer performance may be degraded
Solution Approach 1:
The interface speed is dynamically adjusted based on real-time monitoring of application load and data traffic patterns. The system transitions between different speed levels smoothly, ensuring that performance is maintained when needed while power is saved when not needed. This dynamic adjustment resolves the contradiction by making speed a flexible parameter rather than a fixed one.
Solution Approach 2:
The system performs preliminary monitoring and analysis of data traffic patterns to predict when performance requirements will be met. By proactively adjusting speed based on anticipated load conditions, the system prevents performance degradation before it occurs, while still achieving power savings during low-load periods.
Data Source
AI summary
An apparatus comprising an interface circuit and a controller. The interface circuit may be configured to calculate a speed signal in response to data traffic measured over a network. The controller may be configured to present and receive data from an array in response to (a) the speed signal and (b) one or more input/output requests. The interface circuit may generate the speed signal in response to a plurality of predetermined factors. The controller may present and receive the data at one of a plurality of speeds in response to the speed signal.