XCP-ng virtualization platform
XCP-ng is a high performance enterprise-level virtualization platform. XCP-ng stands for Xen Cloud Platform - next generation: it is the modern successor to XCP, initially created as an Open Source version of Citrix XenServer back in 2010.
Xen Orchestra
Xen Orchestra (XO) is the web-based management platform for XCP-ng nothing to install on hosts or in VMs. Xen Orchestra opens a single connection to each pool master through the XAPI toolstack, and manages every host and VM in the pool through it.