Load Balancer Server Failover for EHR Data Integrity
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Solution Overview
Problem
Current healthcare systems face challenges in maintaining uninterrupted access to electronic health records (EHRs) during server downtime, leading to potential delays or incorrect patient care due to limited alternatives for accessing patient data, especially when PDFs are incompatible with modern medication verification procedures.
Innovation Solution
A system utilizing a load balancer to detect server status and redirect requests from a primary EHR server to a backup server, deactivating write operations to prevent data corruption and ensuring read-only access during downtime, thereby maintaining data integrity and availability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the primary EHR server is taken offline for maintenance or upgrades, then server reliability and system performance are improved, but data availability and continuous patient care access deteriorate
Solution Approach 1:
The system performs preliminary actions by continuously maintaining a backup server with synchronized data before the primary server needs to go offline. The backup server is prepared in advance and can immediately take over when the primary server is taken offline for maintenance or upgrades, ensuring continuous data availability without interruption to patient care.
Solution Approach 2:
The load balancer acts as an intermediary that automatically detects when the primary server is offline and redirects traffic to the backup server. This intermediary component enables seamless failover, maintaining data availability while allowing the primary server to be taken offline for reliability improvements.
2Ease of operation
If the backup server allows write operations during downtime, then data access flexibility is improved, but data integrity and fidelity deteriorate due to potential data corruption
Solution Approach 1:
The system applies different operational modes to different servers based on their roles. The backup server is configured with read-only access during downtime, while the primary server maintains full read-write capabilities when online. This local quality differentiation ensures data integrity on the backup server while maintaining operational flexibility where needed.
Solution Approach 2:
The system preemptively prevents write operations on the backup server during downtime by configuring it in read-only mode. This preliminary anti-action blocks potential data corruption before it can occur, while still allowing read operations to maintain data access flexibility for continuous patient care.
3Reliability
If manual paper charting is used during EHR downtime, then continuous patient care is maintained, but operational efficiency and accuracy deteriorate
Solution Approach 1:
The load balancer serves as an intermediary that automatically detects server status and redirects user requests to the backup server when the primary server is offline. This eliminates the need for manual workarounds like paper charting, maintaining both continuous patient care and operational efficiency through automated failover.
Solution Approach 2:
The system provides self-service by automatically handling the failover process without requiring manual intervention from healthcare providers. The load balancer and backup server work together to seamlessly continue EHR access, maintaining productivity and accuracy while ensuring continuous patient care during primary server downtime.
Data Source
AI summary
Methods, systems, and computer-readable media are provided for the automated preservation and downtime mitigation of server-based databases and applications. Read and write operations intended for a database may be communicated to a load balancer. The load balancer may direct the operations to a primary server and/or a backup server. Further, during periods of primary server downtime, write-based tasks, operations, and/or requests of remote applications may be deactivated by the load balancer. Additionally, the load balancer may prevent corruption of backup databases from coming out of sync, and/or unexpected, undesirable, or unwanted data modification by deactivating, denying, locking, or otherwise preventing the write operations of the backup server.