/mcpWith this installation method, you can add up to 5 Unified Communication Manager subscriber nodes and 5 IM and Presence Service subscriber nodes in the Cisco VM Builder tool of the Unified CM publisher. If we need to add more subscribers (Unified CM or IM and Presence Service), follow step 4 or step 5 depending on the deployment. Step 4 To perform touchless install on entire cluster including publisher, make sure to pass the Dynamic Cluster Config Enable parameter as True and enter a value between 1-24, in the Dynamic cluster Config Timer in the Cisco VM Builder tool of the Unified CM publisher. For example, set the values of these parameters as: guest.dynamic_cluster_config=True and guest.cluster_config_timer=24. Step 5 To install subscriber nodes in the cluster after the Unified CM publisher installation completes, perform any one of the following: • Enable the Dynamic Cluster Config Enable option in the user interface of the Unified Communication Manager publisher using the CLI set network cluster subscriber dynamic-cluster-configuration no-of-hours|default. (OR) • Add your subscriber nodes manually from the Unified CM user interface of the publisher, after the Unified CM publisher node installation completes. Step 6 The Cisco VM Builder tool validates the configuration values, deploys the OVA in the VMware Embedded Host Client or vCenter Server, automatically powers on the node, and starts the installation. See the “vmbuilder--help” option to know more about the mandatory parameters and other restrictions. Step 7 Repeat step 3 for each subscriber node in the cluster. Subscriber nodes can be installed parallelly by opening multiple SSH connections. Note DHCP is not supported for touchless installation as the automated MAC can assign any IP Address and Host Name for the nodes. Install with Data Import Use the following procedure to configure Unified Communications Manager and IM and Presence Service installation with data import from an older version of Unified CM. See the Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service to refer to the supported source releases for direct migration to the 15 destination versions. Installation Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs 75 Installation Methods Install with Data Import