VMware innovations in operation continuity will be glowing in VMware ESX 4.0.In addition to the current high availability of VMware ESX Server, the software will inherit a function of fault tolerance.Today, VMware High Availability (HA) provides rapid restart of virtual machines in their last known state on a different ESX server, in case the physical server hosting them face a failure.
With VMware FT (Fault Tolerance), the system provides synchronous replication of protected VMs on two different servers.The application continues to function without interruption on the secondary server if the primary server comes to fail.For additional security measure, this cloned VM is automatically replicated to a third server, as the first server is not repaired, to maintain the availability of the VM if the second server also came to the same problem.
Meanwhile, the launch of VMware FT, the only real solution for fault tolerance available in virtualized environment remains hidden and not announced. Thought it was of a great deal that I thought I will share it with everyone, even before it hit the market. To get you more exited about VMware FT check out the below VMware FT Video:
To find out more about the other features of the upcoming VMware ESX release 4.0 check out John article: