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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

heartbeat

Message that is sent regularly between cluster network drivers on each node. Heartbeat messages are used to detect communication failure between cluster nodes.

high availability

Describes a resource that remains operational and usable by clients most of the time with a very low percentage of failures that interrupt service. Failover clusters are designed to keep applications and other cluster resources highly available.

See also fault tolerant.

highly available

See high availability.