removed FAR & SNRO

Author: Vaishali-gif-rh

virt/install/preparing-cluster-for-virt.adoc

@@ -240,6 +240,11 @@ Currently, IPI is not supported on {ibm-z-name}.
 
 * Automatic high availability for both IPI and non-IPI is available by using the *Node Health Check Operator* on the {product-title} cluster to deploy the `NodeHealthCheck` controller. The controller identifies unhealthy nodes and uses a remediation provider, such as the Self Node Remediation Operator or Fence Agents Remediation  Operator, to remediate the unhealthy nodes. For more information on remediation, fencing, and maintaining nodes, see the link:https://access.redhat.com/documentation/en-us/workload_availability_for_red_hat_openshift[Workload Availability for Red Hat OpenShift] documentation.
 
+[NOTE]
+====
+Fence Agents Remediation uses supported fencing agents to reset failed nodes faster than the Self Node Remediation Operator. This improves overall virtual machine high availability. For more information, see the link:https://access.redhat.com/articles/7057929[OpenShift Virtualization - Fencing and VM High Availability Guide] knowledgebase article. 
+====
+
 * High availability for any platform is available by using either a monitoring system or a qualified human to monitor node availability. When a node is lost, shut it down and run `oc delete node <lost_node>`.
 +
 [NOTE]