Backup Control Device Managing Update Frequency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing data backup systems face challenges in efficiently managing backup frequency, leading to increased load on processing systems and potential data loss due to excessive or insufficient backup timing, particularly when multiple host devices issue update requests simultaneously.
Innovation Solution
A control device that records the reception interval and last reception time of update requests for each host device, comparing elapsed time to determine optimal backup timing, thereby reducing backup frequency and ensuring data is backed up at the completion of updates, thus minimizing interference with other processing tasks and ensuring data preservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backup is acquired for every update request, then data preservation is improved, but processing load increases and other tasks are affected
Solution Approach 1:
The patent implements periodic backup action by acquiring backup data at predetermined intervals rather than for every update request. The control device determines whether to acquire backup data based on comparing the elapsed time since the last backup with a predetermined threshold, creating a periodic backup rhythm that balances data preservation with system performance.
Solution Approach 2:
The backup frequency is made dynamic by adjusting the predetermined interval based on system conditions. The control device can modify the backup interval according to the current state of the information processing system, allowing the backup frequency to adapt to varying workloads and update patterns rather than using a fixed schedule.
2Reliability
If backup frequency is increased to ensure data preservation, then reliability is improved, but response time of other processing deteriorates
Solution Approach 1:
By implementing periodic backup at predetermined intervals rather than continuous backup on every update, the system reduces the frequency of backup operations. This periodic approach ensures that backup occurs at reasonable intervals while allowing other processing tasks to execute without interruption, thus maintaining response time performance.
Solution Approach 2:
The system performs partial backup action by selectively acquiring backup data only when the predetermined interval condition is met, rather than performing complete backup on every update request. This partial action approach provides sufficient data preservation while minimizing interference with other processing tasks.
3Measurement precision
If backup is performed frequently to capture latest data state, then data freshness is improved, but storage device lifespan is reduced due to excessive write operations
Solution Approach 1:
The patent reduces write operations to the storage device by implementing periodic backup at predetermined intervals. Instead of writing backup data to storage for every update request, the system performs writes only when the time interval threshold is exceeded, significantly reducing the total number of write operations and extending storage device lifespan while maintaining adequate data freshness.
Solution Approach 2:
The system changes the timing parameter of backup operations by introducing a time interval threshold. This parameter change transforms the backup frequency from event-driven (every update) to time-driven (periodic intervals), reducing the frequency of write operations to the storage device while maintaining acceptable data freshness levels.
Data Source
AI summary
A control device configured to backup data updated in response to update requests issued by a plurality of host devices, includes a memory; and a processor configured to: record, in the memory, a reception interval and a last reception time of the update requests for each host device, compare an elapsed time from the last reception time to a certain timing and the reception interval at the certain timing for each host device, and start the backup according to a comparison result for each host device.