McDewey

Virtual Machine Configurations and CPU Minimum Base Frequencies Applications are supported only with specific virtual machine (VM) configurations. You must deploy these VMs using the latest Cisco-provided OVA file (see the Readme file for important notes.) • For Unified Communications Manager nodes, the files are available here: https://software.cisco.com/ download/home/286331940/type/283088407/release/15 • For IM and Presence nodes, the files are available here: https://software.cisco.com/download/home/ 286331963/type/283757588/release/15 • One base OVA is used for both VMware vSphere ESXi and Cisco NFVIS for UC, while a set of base OVAs is used for Nutanix AHV. See the following table for the required and supported virtual machine configurations. • Each VM represents a particular application capacity point and has a minimum required CPU base frequency. • For more information on how these are used, see the Cisco Virtualization Guide for Cisco On-premises Calling Applications. Table 2: Unified Communications Manager Release 15 FCS through 15SU4 vNIC vDisk vRAM Physical CPU Required Minimum Base Frequency vCPU Component and Capacity Point 1 (1GbE+) 1x 110 GB 10 GB 2.00+ GHz 2 Small 1 (1GbE+) 1x 110 GB 12 GB * 2 Medium 1 (1GbE+) 1x 110 GB 14 GB * 4 Large

• 2.5+ GHz is recommended for simple sizing. Alternatively, run the Collaboration Sizing Tool to determine if your deployment meets the requirements for 2.00+ GHz at this capacity. Table 3: IM and Presence Service Release 15 FCS through 15SU4 vNIC vDisk vRAM Physical CPU Required Minimum Base Frequency vCPU Component and Capacity Point 1 (1GbE+) 1x 110 GB 6 GB 2.00+ GHz 1 Extra Small (1000 devices) 1 (1GbE+) 2x 80GB 10 GB 2.50+ GHz 2 Small (5000 devices) Installation Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs 16 Planning the Installation Virtualization Requirements