Storage Apparatus Power Control via Communication Linkage
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Solution Overview
Problem
Existing storage systems face challenges in reducing power consumption without relying on repeater chips, as they require continuous power supply for all storage components, leading to higher operational costs.
Innovation Solution
A storage apparatus with a system controller that initiates power supply to storage units only after establishing communication linkage through a connection line, using a power controller to manage power supply independently within each disk enclosure, allowing for efficient power management and reduction in standby power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If power supply control is implemented without repeater chips, then device complexity is reduced, but power supply control capability may be compromised
Solution Approach 1:
The patent removes the repeater chip from the storage system architecture. The system achieves power supply control without requiring external repeater chips by implementing a native communication mechanism between the system controller and storage devices through the existing connection line, thereby reducing device complexity while maintaining control capability.
Solution Approach 2:
The connection line is designed to serve multiple functions: data communication and power supply control signaling. The system controller uses the same connection line that already exists for data transmission to also convey power supply control commands, eliminating the need for separate repeater chips or additional control lines.
2Reliability
If power supply to storage units is continuously maintained, then system reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic power supply control where the system controller adjusts power supply to storage units based on real-time system conditions and access requirements. Power is supplied only when needed for data operations, and suspended when storage units are not in use, transforming the static continuous power supply model into a dynamic on-demand model that balances reliability with energy efficiency.
Solution Approach 2:
The system employs periodic power supply cycles for storage units, alternating between active power supply during data access operations and power suspension during idle periods. The system controller manages these periodic power cycles by issuing control signals through the connection line, enabling storage units to be powered on only when required and powered off during non-operational periods.
Data Source
AI summary
A storage apparatus connectable to an external apparatus through a connection line for data communication includes: a storage for storing data; a system controller for controlling data communication with the external apparatus through the connection line so as to allow the external apparatus to access the storage; and a power controller for controlling power supply to the storage, wherein the system controller controls the power controller to initiate supply of a power to the storage after establishing a communication linkage with the external apparatus through the connection line.