Disk Array Reconstruction Indication System
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Solution Overview
Problem
In disk arrays, data reconstruction fails if a disk participating in the process is moved or removed due to user misoperation, leading to data unavailability and significant losses.
Innovation Solution
A method and system that determine a target disk for data reconstruction within a disk array and send an indication to an associated indicating apparatus, preventing the disk from being moved or removed by alerting the user to its active reconstruction state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data reconstruction is performed using disks in the disk array, then data availability is improved, but the risk of user misoperation increases leading to reconstruction failure
Solution Approach 1:
The system applies preliminary anti-action by sending an indication to the indicating apparatus before the user can perform misoperation. The indicating apparatus displays a visual indicator on the disk participating in data reconstruction, warning users not to remove or move the disk. This preventive warning is established before any user action can occur, thereby counteracting potential harmful misoperations that would otherwise cause reconstruction failure.
2Reliability
If visual indicators are added to disks during reconstruction, then user awareness is improved, but device complexity increases
Solution Approach 1:
The indicating apparatus serves as an intermediary between the disk and the user. Instead of directly modifying the disk or requiring complex user interfaces, the system uses a separate indicating apparatus that receives signals from the system and displays appropriate visual indicators. This intermediary approach allows the system to communicate reconstruction status to users without adding complex control mechanisms to the disk itself or the core reconstruction system.
Data Source
AI summary
Techniques for data processing involve: determining, from a disk array, a target disk used for data reconstruction of the disk array; and sending, to an indicating apparatus associated with the target disk, an indication that the target disk is used for the data reconstruction. In this way, such techniques can indicate to the user that the target disk is being used for data reconstruction to remind the user not to remove or move the target disk, thereby ensuring completion of the data reconstruction. Such a technique may improve data storage equipment operation by preventing user interference.