everRun software provides two user-defined availability levels for VMs: High Availability (HA) and Fault Tolerant (FT).

You select a VM’s protection or availability level when you create or import the VM by using the everRun Availability Console.

Use Fault Tolerant (FT) operation for applications that need the highest levels of availability. In FT operation, an application continues to run without downtime during a fault. The everRun software transparently protects an application by creating a redundant environment for a VM running across two physical machines (PMs). With an identical instance of the selected VM on a second host, the everRun software provides FT-class protection of the VM.

When enabled, FT operation transparently protects a VM from all faults, with no downtime, and FT operation:

• Eliminates downtime due to any CPU, memory, I/O, or other physical machine (PM) failure.

• Handles failures without IT intervention.

• Ensures no data loss.

• Provides continuous, active validation of all components.

• Assures complete redundancy and recovery at all times.