Storage Control Apparatus Dynamic Verification Period Adjustment
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Solution Overview
Problem
Existing storage control systems face challenges in minimizing the workload for verification processes of backup storage devices while maintaining reliability, as shortening the verification period increases workload but decreases reliability, and lengthening it reduces workload but increases the likelihood of backup storage device malfunction.
Innovation Solution
A storage control apparatus that determines the patrol period of the backup storage device based on the amount of write data and total bytes written (TBW) to balance workload and reliability, using a threshold value management table to adjust the frequency of verification processes accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the verification period for the backup storage device is shortened, then the reliability is improved, but the workload increases
Solution Approach 1:
The patent applies dynamics by making the verification period adjustable rather than fixed. The control apparatus dynamically determines the verification period based on real-time monitoring of storage device performance parameters, allowing the system to adapt the verification frequency to actual conditions and resolve the contradiction between reliability and workload.
Solution Approach 2:
The patent changes the parameter of verification period based on monitored storage device parameters such as access patterns, error rates, and performance degradation. By adjusting this temporal parameter dynamically, the system optimizes the balance between maintaining reliability and reducing verification workload.
2Productivity
If the verification period for the backup storage device is lengthened, then the workload is reduced, but the reliability decreases
Solution Approach 1:
The system dynamically adjusts the verification period based on actual storage device conditions, preventing the use of a fixed long verification period that would unnecessarily reduce reliability. The dynamic adjustment ensures verification occurs frequently enough to maintain reliability while avoiding excessive workload during stable operation periods.
Solution Approach 2:
The control apparatus continuously monitors storage device performance and uses this feedback to determine the appropriate verification period. This closed-loop feedback mechanism ensures that verification frequency is automatically adjusted to maintain reliability while minimizing workload, resolving the contradiction between these two parameters.
Data Source
AI summary
A storage control apparatus including a memory that stores information that indicates an amount of data that have been written to a storage device, the storage device being coupled to a backup storage device for the storage device, and a processor coupled to the memory and the processor configured to determine an execution period of a verification process to verify a performance of the backup storage device based on the information stored in the memory and a total data capacity written to the storage device in a guarantee period of the storage device.