LVS - Linux Virtual Server is a highly scalable and highly available server built on a cluster of real servers, with the load balancer running on the Linux operating system.
Heartbeat - Provides a high availability (clustering) solution for Linux which promotes reliability, availability, and serviceability (RAS)
VRRP - Virtual Router Redundancy Protocol
Ultra Monkey - High Availability and Load Balancing Solution for LinuxXEN - Powerful hypervisor - industry standard for virtualization, offers a powerful, efficient, and secure feature set for virtualization of x86, x86_64, IA64, ARM, and other CPU architectures.
VMware - virtualization platform that dramatically improves the efficiency and availability of resources and applications.
