Feature Summary

VMware vSphere® Fault Tolerance (FT) provides continuous availability for applications (with up to 4 virtual CPUs) in the event of server failures by creating a live shadow instance of a virtual machine that is always up-to-date with the primary virtual machine. In the event of a hardware outage, vSphere FT automatically triggers failover—ensuring zero downtime and preventing data loss.

After failover, vSphere FT automatically creates a new, secondary virtual machine to deliver continuous protection for the application.

Protect Your Applications Regardless of Operating System or Underlying Hardware

vSphere Fault Tolerance safeguards any virtual machine (with up to 4 virtual CPUs), including homegrown and custom applications that traditional high availability products cannot protect.

  • Compatible with all types of shared storage, including Fibre Channel, iSCSI, FCoE and NAS.
  • Compatible with all operating systems supported by vSphere.
  • Works with existing VMware vSphere Distributed Resource Scheduler and VMware vSphere High Availability (HA) clusters for advanced load balancing and optimized initial placement of virtual machines.
  • Contains a version-control mechanism that lets primary and secondary virtual machines run on vSphere FT-compatible hosts at different but compatible patch levels.

Simple to Set Up and Turn On and Off

As it leverages existing vSphere HA clusters, vSphere FT can safeguard any number of virtual machines in a cluster. Administrators can turn vSphere FT on or off for specific virtual machines with a point-and-click action in the vSphere web client. Use vSphere FT as needed for applications that require continuous protection during critical times, such as quarter-end processing.