Disk Image Segmentation for Rapid Function Recovery
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Solution Overview
Problem
It is challenging for operators to promptly recover functions in distributed systems due to factors like increased terminal numbers, physical distances, and communication bandwidth limitations, especially when communication terminals fall into anomalous operating states.
Innovation Solution
A distributed system architecture where communication terminals, edge servers, and storage devices communicate via a network, enabling the detection of anomalous functional modules, generation of disk images, division of these images into smaller segments, and their distribution across storage devices for rapid recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If communication terminals are increased in number to enhance system capacity, then system functionality is improved, but function recovery time increases due to physical distances and communication bandwidth limitations
Solution Approach 1:
The patent divides the disk image into multiple divided disk images and distributes them across different storage devices in the distributed system. This segmentation enables parallel download and distribution of image segments through multiple communication paths, thereby reducing the overall function recovery time despite increased terminal quantities and communication constraints.
Solution Approach 2:
The patent pre-generates and stores divided disk images in multiple storage devices before they are needed for recovery. When a terminal requires function recovery, the already-prepared divided images can be immediately distributed and downloaded, eliminating the time-consuming process of image creation during recovery operations.
2Ease of repair
If disk images are transmitted through the network for function recovery, then function restoration is enabled, but communication bandwidth limitations slow down the recovery process
Solution Approach 1:
The patent segments the disk image into multiple smaller divided disk images that can be transmitted simultaneously through multiple communication channels. This parallel transmission approach充分利用 the available network bandwidth and reduces the total time required for function recovery compared to transmitting a single large image file sequentially.
Solution Approach 2:
The patent combines multiple communication paths and storage devices to work together in the function recovery process. Multiple terminals can simultaneously download different divided disk images from different storage devices, merging the capabilities of multiple network paths to achieve faster overall recovery speeds.
3Reliability
If divided disk images are distributed across multiple storage devices, then recovery reliability is improved, but system complexity increases
Solution Approach 1:
The patent divides the disk image and distributes segments across multiple storage devices, creating redundancy that improves recovery reliability. Even if some storage devices or communication paths fail, the system can still recover functions by retrieving available divided images from remaining devices.
Solution Approach 2:
The patent creates a multi-functional distributed system where storage devices can serve both as data storage and as distribution points for recovery operations. The system can handle multiple recovery operations simultaneously through different storage devices, providing universal service capability that justifies the increased architectural complexity.
Data Source
AI summary
The communication terminal detect a functional module of anomalous operating state, and to notify the edge server of the anomalous operating state. The edge server generates respective disk images corresponding to the functional module and a related functional module, generates a plurality of divided disk images obtained by dividing the generated disk image, and sends the plurality of divided disk images to the storage device. The storage device stores the divided disk images, and sends divided disk images corresponding to the functional module and the related functional module to the communication terminal in response to request from the communication terminal. The communication terminal generates the disk image by coupling the plurality of divided disk images acquired from the storage device, and turns on the functional module and the related functional module based on the generated disk image.