Use the following best practices to deploy the Avaya Aura® MS appliance in the KVM on Red Hat® virtualized environment:

• High Availability (HA) Media Server VMs should be deployed on separate equally capable server hosts.

• All physical servers that can host a VM must have the same CPU, memory, and networking specifications.

• Logical cores on the host must not be oversubscribed with respect to vCPU count across all VMs that share the host with the media server. For example, the total number of vCPUs across all VMs on a KVM host that has 24 logical cores (12 physical cores with hyper-threading enabled), must not exceed 24.

  Note:

  This recommendation prevents CPU oversubscription.

  It is mandatory to ensure the KVM on Red Hat® host is not oversubscribed (Logical Cores <= vCPU for all VM’s deployed to that host.

• For maximum system performance, ensure that the energy savings features are disabled or that the maximum performance settings are enabled in the server BIOS.

• Old media server backup files must be removed to maintain free space on the system.