VMware HA (High Availability) is a utility that eliminates the need for dedicated standby hardware and software in a virtualized environment. The utility is part of a virtualization suite called VMware Infrastructure 3. In IT (information technology), the term high availability refers to a system or component that is continuously operational for long periods.
Key features of VMware HA include:
Proactive monitoring of all physical servers and virtual machines
Automatic detection of server failure
Rapid restart of virtual machines affected by server failure
Optimal placement of virtual machines after server failure
Scalable availability up to 32 nodes across multiple servers
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