Rack Server Battery Backup Segmented Testing
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Solution Overview
Problem
The risk of data loss in rack server systems is heightened when the battery backup unit is undergoing a validity test, as it may not be able to maintain power during abnormal main power conditions, leading to potential system instability and data loss.
Innovation Solution
A control method for the rack server system that establishes a communication link with the battery backup unit, allowing it to perform validity tests on battery modules in a time-sharing manner, ensuring that not all modules are under test simultaneously, thus maintaining power supply and reducing the risk of data loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If validity test is performed on battery backup unit, then battery validity is ensured, but power supply stability deteriorates
Solution Approach 1:
The battery backup unit is divided into multiple battery modules, allowing the system to segment the testing process. During validity testing, only specific battery modules are tested while others remain available to provide power, thus maintaining power supply stability while ensuring battery validity through targeted testing of individual segments.
2Measurement precision
If discharge test is performed on battery backup unit, then battery power capacity is verified, but risk of data loss increases
Solution Approach 1:
The system performs preliminary assessment by monitoring the rack server system's power consumption before conducting discharge tests. This preliminary action allows the system to determine whether the server is in a low-power state suitable for testing, thereby verifying battery power capacity while minimizing the risk of data loss by avoiding tests during high-power consumption periods.
3Productivity
If battery backup unit performs validity test, then system stability is compromised, but testing frequency must be maintained
Solution Approach 1:
The system implements periodic action by scheduling validity tests at different time periods for different battery modules. Instead of continuously testing all modules or testing them simultaneously, the system performs tests periodically on individual modules or groups of modules, ensuring that testing frequency requirements are met while maintaining system stability through time-based separation of test operations.
Data Source
AI summary
A rack server system and a control method thereof are provided. The rack server system establishes a communication link for communicating with a battery backup unit. The battery backup unit is connected to a power input port of the rack server system, and includes a number of battery modules connected with each other in parallel. The rack server system controls the battery backup unit to perform validity test on a first battery module during a first period and to perform validity test on a second battery module during a second period, wherein the first period and the second period are not overlapped with each other.