HA stands for one of the critical enterprise cluster feature of VMware called “High Availability”. It can be configured on a VMware cluster to auto recover VM’s from a ESX host failure.
- When you configure HA via vCenter Server on VMware cluster, it
- installs Automated Availability Manager (AAM) (VMware HA agent) on individual ESX host
- The HA agent (AAM) runs a heartbeat mechanism on each host in a cluster to signal that the host is running and is a part of the cluster.
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