A customer needs to meet the following requirements for their business critical application: * SQL Servers must be on specific hosts to lower licensing costs. * Oracle RAC servers must be on separate hosts for licensing reasons Which policy or policies should be implemented to meet these requirements?

Both requirements can be met using only VM-Host affinity policies. The first requirement, pinning SQL servers to specific hosts for licensing, is the primary use case for VM-Host affinity. The second requirement, ensuring Oracle RAC servers are on separate hosts, can also be achieved by creating separate VM-Host affinity policies for each Oracle VM, assigning each to a different host or non-overlapping group of hosts. For example, one policy would pin OracleVM1 to HostA, and a second policy would pin OracleVM2 to HostB. This approach satisfies both constraints using a single policy type.

A. A VM-VM anti-affinity policy would solve the Oracle requirement but would not address the SQL server host-specific licensing requirement.
B. A VM-VM affinity policy would force VMs to run on the same host, which is the opposite of the Oracle requirement.
C. While a combination of VM-Host affinity and VM-VM anti-affinity would also work, it is not necessary, as VM-Host affinity alone can satisfy all stated requirements.

1. Prism Web Console Guide, v6.5. Section: "VM Management > Affinity Policies > VM-Host Affinity". This section describes creating rules to confine a VM or group of VMs to a specific set of hosts, which can be used to satisfy both requirements.

2. Nutanix University, Nutanix Enterprise Cloud Administration (ECA) 6.5. Section: "Configuring Acropolis Services". This course explains how VM-Host affinity rules are used to control VM placement for licensing and application requirements.