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Disaster recovery ensures systems can restore services and data after major disruptions.

Disaster Recovery Testing verifies that your recovery plan works effectively in real situations.

Elasticsearch CCR allows real-time data replication for faster disaster recovery.

Point-in-Time Recovery allows databases to be restored to a specific moment before data loss.

Active-passive architecture ensures a standby system takes over if the main system fails.

High Availability ensures your application remains operational even during server failures.

Data residency is crucial for compliance with laws about where data can be stored.

Fault domains help prevent multiple servers from failing together in an architecture.

Fallbacks allow systems to handle failures safely and maintain user experience.

Cascading failures occur when one service's failure impacts others, causing widespread issues.

A single component's failure can take down your entire application, even with redundancy.

Database replication enhances data availability and read performance but has challenges like replication lag.