Hi Marsha,
Starting with the release of CUCM 10.x only virtualized builds are supported. MCS server hardware is not supported beyond CUCM 9.x;
Platform Requirements
In this release, you cannot install or run Cisco Unified Communications Manager and the IM and Presence Service directly on server hardware; you must run these applications on virtual machines.
Before you can install or upgrade the software on a virtual machine, you must:
- configure the platform
- install and configure ESXi virtualization software
- deploy the correct OVA template for the release
This section provides information about the platform requirements that you must meet before you can deploy Cisco Unified Communications Managerand the IM and Presence Service on virtual machines.
Supported Platforms
Cisco supports virtualized deployments of Unified Communications Manager and the IM and Presence Service on Cisco Unified Computing System servers, or on a Cisco-approved third-party server configuration.
Whether you use a Cisco Unified Computing System server or a Cisco-approved third-party server configuration, you must ensure that the server meets the configuration requirements of the release. The following options are available:
- a tested reference configuration (TRC)
- a specifications-based configuration
For information about the platform configuration specifications, such as CPU, memory, and storage specifications, see UC Virtualization Supported Hardware.
Information about supported platforms is also available in the following documentation:
- Cisco Unified Communications Manager on Virtualized Servers
- Release Notes for your product release
- Deployment Guide for IM and Presence Service on Cisco Unified Communications Manager
From;
http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/upgrade/10_0_1/CUCM_BK_U4214F9D_00_upgrade-guide-cucm-100/CUCM_BK_U4214F9D_00_upgrade-guide-cucm-100_chapter_010.html#CUCM_RF_HE98F0D1_00
Cheers!
Rob
