Server Switching Module Power Redundancy for Data Integrity
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Solution Overview
Problem
Data stored in server devices can be lost or corrupted when external power fails, posing a challenge in maintaining data integrity during power outages or disruptions.
Innovation Solution
A switching module within a server device that generates different power sources using an external power and an interrupt signal, allowing a backup power to be utilized by the storage module to ensure data is stored when external power is abnormal, comprising a switching unit and a detecting unit that adjusts the power output to prioritize data storage using backup power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the server device uses external power for normal operations, then the computing modules can function properly, but the storage module cannot preserve data when external power fails
Solution Approach 1:
The system performs preliminary action by detecting power abnormalities and triggering data storage to the storage module before the power completely fails. The detecting unit monitors the external power status and activates the switching unit to redirect power to the storage module proactively, ensuring data is preserved before the power outage completes.
Solution Approach 2:
The switching module acts as an intermediary between the external power source and the server components. It includes a switching unit that can redirect power from the external power source to either computing modules or the storage module, and a detecting unit that monitors power status and triggers appropriate power distribution decisions.
2Speed
If the server device allocates power to computing modules during normal operation, then processing speed is maintained, but data storage capability is reduced when power failure occurs
Solution Approach 1:
The system implements dynamic power allocation by enabling the switching unit to change power distribution in real-time based on power status. During normal operation, power is allocated to computing modules for processing. When power failure is detected, the switching unit dynamically redirects power to the storage module to ensure data preservation.
Solution Approach 2:
The system changes operational parameters by switching between different power distribution modes. The detecting unit monitors power parameters and triggers a parameter change that redirects power from computing modules to the storage module when power abnormalities are detected, transforming the system from a processing-oriented state to a data-protection-oriented state.
3Reliability
If the server device uses backup power for storage module, then data can be preserved during power failure, but the power storage capacity required increases
Solution Approach 1:
The system applies partial action by providing backup power only to the storage module rather than to the entire server system. The switching unit selectively directs backup power from the power storage module exclusively to the storage module when external power fails, preserving data without requiring enough backup power capacity to sustain the entire server.
Solution Approach 2:
The system extracts the data preservation function from the general power supply system. By separating the storage module's power supply from the computing modules' power supply through the switching unit, the system can independently manage power allocation to the storage module using a smaller, dedicated backup power capacity.
Data Source
AI summary
A switching module for a server device includes a switching unit, for generating a first power and a second power to a power converting module of the server device according to an external power and an interrupt signal, wherein the power converting module generates a plurality of supply powers to a plurality of computing modules in the server device according to the first power and generates a storage power to a storage module of the server device according to the second power; and a detecting unit, for generating the interrupt signal to the switching unit and the storage module according to the external power; wherein the detecting unit adjusts the interrupt signal to make the switching unit stop outputting the first power, generate the second power according to a backup power and make the storage module stores data under processing when detecting the external power works abnormally.