Hybrid Storage Unit Power Management via Flash Simulation
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Solution Overview
Problem
Hybrid hard disks face significant power consumption issues due to the need for frequent motor rotation, which is not efficiently addressed by existing technologies.
Innovation Solution
A management method for a hybrid storage unit that dynamically adjusts storage space and power consumption by disabling the hard disk when docked and using a flash memory cache area when undocked, allowing the operating system to re-enumerate the storage unit and prioritize power-efficient data access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the hard disk is used to store frequently accessed data, then the data access speed is improved, but the power consumption increases significantly
Solution Approach 1:
The patent dynamically switches between hard disk and flash memory based on docking state. When docked, the hard disk is enabled for high-speed data access. When undocked, the system switches to flash memory to reduce power consumption. This dynamic adaptation resolves the contradiction between speed and energy consumption by selecting the appropriate storage medium based on real-time operational context.
Solution Approach 2:
The system changes the operational parameters of the storage subsystem by disabling the hard disk motor and switching to flash memory when undocked. This parameter change (from hard disk active to flash memory active) directly addresses the contradiction by altering the energy consumption characteristics while maintaining data access functionality.
2Productivity
If the hard disk motor is rotated frequently to access data, then the data retrieval capability is improved, but the power consumption and mechanical wear increase
Solution Approach 1:
The patent extracts the hard disk motor from active operation when undocked, removing it from the functional system and replacing it with flash memory. This extraction eliminates the motor's power consumption and mechanical wear while maintaining data access capability through the alternative storage medium, directly resolving the contradiction between productivity and energy use.
Solution Approach 2:
The controller acts as an intermediary that manages the switch between hard disk and flash memory based on docking state. It mediates the transition by disabling the hard disk motor and enabling flash memory access, thereby resolving the contradiction by introducing a controlling element that optimizes the balance between data retrieval capability and motor power consumption.
3Use of energy by moving object
If the hybrid storage unit dynamically switches between hard disk and flash memory, then the power consumption is reduced, but the device complexity increases
Solution Approach 1:
The system implements self-service by automatically detecting docking state and autonomously switching between hard disk and flash memory without requiring complex external management. The controller monitors the docking status and independently makes the switch, reducing the need for complex user-facing controls or external management systems, thereby mitigating the complexity issue while achieving power reduction.
Data Source
AI summary
A management method of a hybrid storage unit and an electronic apparatus of the hybrid storage unit are provided. The electronic apparatus includes a hybrid storage unit. The hybrid storage unit includes a first storage unit and a second storage unit. The second storage unit includes a first storage area and a second storage area. If a relationship between the electronic apparatus and an external apparatus is detected as being an undocked relationship, the first storage unit is disabled by a controller of the hybrid storage unit, and the second storage area serves to simulate and replace the first storage unit. The controller reports a storage unit status change notification to an operating system, so as to allow the operating system to re-enumerate the hybrid storage unit.