High-Availability Infrastructure

This question asks if your service is designed to stay online even when parts of your infrastructure fail. High-availability means having duplicate systems and automatic failover - like having two engines on a plane. If one server, database, or component fails, another immediately takes over without your customers noticing any interruption.

High-availability architecture is the difference between minutes of downtime per year versus hours or days. This directly impacts your ability to offer competitive SLAs, win enterprise deals, and avoid the crushing costs of outages - both in direct losses and reputation damage. Without HA, you're one hardware failure away from a crisis that could trigger customer exodus and business failure.

Many companies claim high-availability but have single points of failure in databases, load balancers, or network paths. Another mistake is having redundant infrastructure but not properly configuring automatic failover, requiring manual intervention that extends outages.