XenServer 6 Prerequisites Citrix Admin published on 2013-04-04 included in PrerequisitesBelow is a list of technical specifications and platform requirements for XenServer. Infrastructure XenServer Host 64-bit x86 server-class system CPU: 1.5 GHz minimum, 2 GHz or faster multi-core recommended Intel® VT or AMD-V™ required for support of Windows guests 2GB to 1TB physical memory Up to 64 logical processors 100Mb/s or faster NIC Up to 16 physical NICs Local, Fibre Channel or SAN boot disk with 16 GB of space minimum, 60 GB or more recommended Fibre Channel, iSCSI or NFS LUN with 356MB of space minimum for High Availability (HA) heartbeat storage repository XenCenter Client x86-based system Microsoft® Windows® 2000, Windows XP, Windows Server® 2003, Windows Server 2008, Windows Vista , or Windows 7 (all Editions and Versions) .