Administration Guide › Managing Virtual Environments › VMware vSphere and vCenter Server › Fault Tolerance for Virtual Machines › Monitor Fault Tolerance

Monitor Fault Tolerance

VMware vSphere lets you enable Fault Tolerance (FT) on a VM defined to a cluster which is configured for High Availability (HA). Fault Tolerance creates a secondary VM on another ESX Server in the cluster. The secondary VM operates in lock-step mode with the primary VM that is executing the workload. If there is a failure, the secondary VM immediately takes over the workload execution from the point of failure. CA Server Automation discovers and manages primary and secondary VMs in a cluster.

To monitor fault tolerance properties

1. Click Resources.

   The Resources page appears.

2. Open the Explore pane.

   Available groups, services, and systems appear.

3. Expand the VMware vCenter Server folder and the ESX server object.

   A list of VMs appears.

4. (Optional) Select the ESX host.

   The following FT attributes appear in the Summary tab:

   Fault Tolerance

   Identifies whether the host has the fault tolerance enabled.

   Fault Tolerance version

   Identifies the version of Fault Tolerance running on the host.

   Note: Only hosts with the same version of Fault Tolerance are compatible with one another.

   Total Primary VMs

   Indicates the total number of primary VMs configured to this host.

   Total Secondary VMs

   Indicates the total number of secondary VMs configured to this host.

   Powered on Primary VMs

   Indicates the total number of primary VMs running (powered on) on this host.

   Powered on Secondary VMs

   Indicates the total number of secondary VMs running (powered on) on this host.

5. (Optional) Select the VM.

   The following FT properties display in the Summary tab.

   Fault Tolerance Status.

   Indicates the VM fault tolerance status.

   Not Fault Tolerant

   Indicates that the VM is not fault tolerant.

   Protected

   Indicates that the VM is fault tolerant and protected.

   Not Protected (Starting)

   Indicates that the fault tolerance is starting and the VM is not protected.

   Not Protected (Need Secondary VM)

   Indicates that the fault tolerance is enabled but needs secondary VM.

   Not Protected (Disabled)

   Indicates that the fault tolerance is disabled and the VM is not protected.

   Not Protected (VM Not Running)

   Indicates that the fault tolerance is enabled but the VM is not running.

   Secondary VM Location

   Identifies the secondary host location.