How to Benefit from VMware vSphere 4.1 Features
Part of the VMware vSphere For Dummies Cheat Sheet
If you're trying to decide if VMware vSphere 4.1 is right for your organization from a technological standpoint, consider these unique, high-value vSphere features before making your decision:
Memory overcommit: VMware vSphere 4 optimally allocates memory to virtual machines and leverages three different techniques to ensure that memory is available when needed. This capability recovers unused or wasted memory from virtual machines and allocates it to virtual machines with higher priority as required.
VMware vMotion live migration: VMware was the first to introduce live migration, which allows you to move running virtual machines from one ESX host to another without interruption. VMware also offers Storage vMotion, enabling migration of running virtual machines' disks from one vSphere datastore to another, without interruption to the virtual machine.
VMware High Availability (HA): vSphere offers High Availability capability that revives virtual machines from a failed ESX host by restarting them on another ESX host in a cluster.
Simple deployment of virtual machines (VM): VMware vCenter Server makes it easy for you to clone and customize virtual machines, giving each clone its own unique identity. This feature allows rapid deployment of virtual machines without building each one from scratch.