Redundant System Pre-configured Transfer Paths
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Solution Overview
Problem
Existing redundancy systems face challenges in efficiently transferring data update information between nodes, particularly when a failure occurs, leading to increased running costs and complexity due to the need for switching paths, which can disrupt data synchronization and lead to data loss.
Innovation Solution
A redundancy system with a primary and secondary data center setup, utilizing multiple nodes (primary master, primary mirror, secondary master, and secondary mirror nodes) that employ intra-system and inter-system transfer paths to ensure continuous data update information transfer, allowing nodes to switch roles and paths without interrupting operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a new path is set for transferring data update information from the secondary node to the secondary data center when node substitution occurs, then data synchronization can be maintained, but running cost increases and switchover processing becomes complicated
Solution Approach 1:
The patent pre-configures multiple transfer paths (first and second inter-system transfer paths) before node failure occurs. When the primary node fails and the secondary node takes over, the system can immediately switch to the pre-configured second transfer path without performing complex real-time path setting operations, thus maintaining data synchronization while simplifying switchover processing
Solution Approach 2:
The patent implements dynamic path switching capability where the transfer path can be automatically changed based on node operational status. The system monitors node health and dynamically switches between the first transfer path (when primary node is active) and the second transfer path (when secondary node is active), enabling seamless failover without manual intervention
2Duration of action of stationary object
If the primary node fails and the secondary node takes over, then system continuity is maintained, but data update information transfer may be interrupted causing data loss
Solution Approach 1:
The patent establishes a backup transfer path (second inter-system transfer path) in advance that can be activated when the primary transfer path becomes unavailable. This pre-prepared alternative path acts as a cushion against potential failures, ensuring that data update information transfer continues uninterrupted when the primary node fails and the secondary node takes over
Solution Approach 2:
The patent introduces a path selection mechanism that acts as an intermediary between the nodes and transfer paths. This intermediary monitors the status of transfer paths and automatically routes data update information through the appropriate path (first or second inter-system transfer path) based on current system state, ensuring continuous reliable transfer during node substitution
Data Source
AI summary
When the redundant system operates the second node in place of the first node in the primary system and transmits, to the secondary system, data update information generated according to a data update in the second node, the fourth node the data update information generated according to the data update in the second node from the second node using the second inter-system transfer path. The fourth node changes by changing a direction of the second intra-system transfer, a configuration by which the data update information acquired by the fourth node is acquired by the third node using the second inter-system transfer path.