Movable Storage Tray Slot for Power-Loss Data Protection
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Solution Overview
Problem
As data processing capacity and performance increase in server devices, the power consumption also rises, leading to potential power loss issues that can compromise data integrity, necessitating effective data protection measures during power outages.
Innovation Solution
A storage device with a tray that moves along a slot during power loss, combined with a host device's power supply unit and a baseboard management controller (BMC) module, ensures stable operation by providing auxiliary power and data flush commands, minimizing data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the storage device uses a fixed tray structure, then the device complexity is low, but the data protection capability during power loss is insufficient
Solution Approach 1:
The tray is designed to move dynamically along the slot in response to power loss conditions. The tray can transition between a first position (normal operation) and a second position (power loss protection), enabling the system to adapt its configuration based on operational state to protect data without requiring complex additional hardware
2Reliability
If the tray moves along the slot during power loss, then the data flush time is delayed for secure data transfer, but the response time to power loss may be insufficient
Solution Approach 1:
The system performs preliminary actions by monitoring power status continuously and pre-positioning the tray at the appropriate location before actual data flush operations are needed. The tray moves to the second position in anticipation of data protection needs, ensuring that when power loss occurs, the data transfer pathway is already established and ready
3Reliability
If the storage device implements power loss protection mechanisms, then the data integrity is improved, but the power consumption increases
Solution Approach 1:
The tray movement mechanism is designed to be self-actuating through the interaction between the tray's first end and the slot structure. The mechanical design allows the tray to move automatically along the slot in response to power loss conditions without requiring additional actuators or complex control systems, thereby minimizing the extra power consumption while maintaining data integrity
Data Source
AI summary
A storage device includes: a substrate including a first surface which extends in first and second directions intersecting each other; an electronic element disposed on the first surface of the substrate; a connector connected to a host device; a tray on which the substrate is mounted; and a guide frame disposed in the tray to support the substrate and having a slot formed to extend along the first direction to a first length, in which, when a loss of power provided from the host device occurs, the tray moves along the slot by the first length.