8 Getting Started With Your System• VMware Virtual Infrastructure 3 ESXi Version 3.5 Update 4NOTE: VMware Virtual Infrastructure 3 ESXi Version 3.5 Update 4is not supported on twelve–hard-drive systems.• Citrix® XenServer™ Enterprise (Version 5.5)NOTE: Twelve–hard-drive systems support Citrix XenServer Enterprise(Version 6.0).• Citrix Essentials for XenServer Enterprise (Version 5.5)NOTE: For the latest information on supported operating systems,see support.dell.com.Other Information You May NeedWARNING: See the safety and regulatory information that shipped withyour system. Warranty information may be included within this documentor as a separate document.• The rack documentation included with your rack solution describeshow to install your system into a rack.• The Hardware Owner’s Manual provides information about systemfeatures and describes how to troubleshoot the system and install orreplace system components. This document is available online atsupport.dell.com/manuals.• Any media that ships with your system that provides documentationand tools for configuring and managing your system, including thosepertaining to the operating system, system management software,system updates, and system components that you purchasedwith your system.NOTE: Always check for updates on support.dell.com/manuals and read theupdates first because they often supersede information in other documents.Obtaining Technical AssistanceIf you do not understand a procedure in this guide or if the system doesnot perform as expected, see your Hardware Owner’s Manual. Dell™ offerscomprehensive hardware training and certification. See www.dell.com/trainingfor more information. This service may not be offered in all locations.