Storage Control Apparatus Battery Power Mode Switching
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Solution Overview
Problem
Conventional storage control apparatuses lack a redundant configuration, making it difficult to adapt to systems with multiple batteries, and existing solutions cannot seamlessly modify their data protection operating modes to match configuration changes.
Innovation Solution
A storage control apparatus with a redundant configuration comprising multiple clusters, each equipped with communication control units, memory units, and a control unit that manages data and management data based on battery power levels, switching between normal, write-through, and access disable modes based on threshold values to ensure data protection and usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a storage control apparatus uses a conventional single-battery configuration, then the structure is simple, but it cannot be applied to redundant configurations with multiple batteries
Solution Approach 1:
The storage control apparatus is divided into multiple independent clusters, each with its own battery and cache memory. This segmentation allows each cluster to operate independently with its own power management, enabling the system to scale from single to multiple batteries without requiring fundamental redesign of the power management architecture.
Solution Approach 2:
The power management unit is designed with universal functionality that can handle both single-battery and multi-battery configurations. The same power management logic and threshold-based control mechanism work regardless of the number of batteries, making the system adaptable to different redundancy levels without increasing operational complexity.
2Reliability
If the storage control apparatus switches to write through operation when battery power is low, then data protection is improved, but writing performance deteriorates
Solution Approach 1:
The operating mode is dynamically adjusted based on real-time battery power levels. The system transitions between write back and write through modes according to threshold values, allowing optimal writing performance when power is充足 and ensuring data protection when power is low. This dynamic adaptation resolves the contradiction by making performance conditional on power availability.
Solution Approach 2:
The system changes the operational parameter (writing mode) based on the battery power level parameter. When power level exceeds a threshold, write back mode is used for high performance; when power level drops below the threshold, write through mode is activated for data protection. This parameter-based control allows the system to optimize for different conditions.
3Reliability
If the storage control apparatus monitors battery power level and switches operating modes, then data protection is improved, but control complexity increases
Solution Approach 1:
The power management unit continuously monitors battery power levels and uses this feedback to automatically switch between operating modes. The threshold-based feedback mechanism triggers mode transitions without requiring complex decision logic, keeping control complexity low while maintaining reliable data protection through automated responses to power conditions.
Solution Approach 2:
The system performs self-monitoring and self-adjustment of operating modes based on battery power levels. The power management unit automatically detects power conditions and switches between write back and write through modes without external intervention, reducing the need for complex external control mechanisms while ensuring data protection.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances both reliability and usability by dynamically adjusting operating modes based on battery power levels, preventing data loss and ensuring continuous operation even with reduced battery power, while allowing for flexible configuration modifications.
Implementation Method 1
a battery that is configured to supply an electrical power to the first memory
Data Source
AI summary
It is an object to improve a reliability of a data protection for a storage control apparatus that is provided with a redundant configuration that is made of a plurality of clusters.A memory unit in each of the clusters C1 and C2 is provided with a first memory 3 having a volatile property, a battery 5 that is configured to supply an electrical power to the first memory 3, and a second memory 4 that stores data that is transferred from the first memory 3 in the case of a power outage. A control unit selects an operating mode for protecting data from a normal mode, a write through mode, and an access disable mode (a not ready state) based on a remaining power level of the battery 5.