+High Availability (HA) ensures a system remains operational, minimizing interruptions. It achieves this resilience through strategies like [Redundancy](/wiki/Redundancy) and rapid [Failover](/wiki/Failover), keeping services online even when parts fail.
+## See also
+- [Fault Tolerance](/wiki/Fault_Tolerance)
+- [Scalability](/wiki/Scalability)
+- [Downtime](/wiki/Downtime)
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