22 Planning, Installing, and Managing the IBM System x3950 M2Similarly, two eight-way servers will provide more scheduling flexibility than four4-way servers. Refer to the white paper, Tips and Techniques for ImplementingInfrastructure Services on ESX Server available from:http://www.vmware.com/vmtn/resources/409Table 1-5 shows that scheduling opportunities scale exponentially rather thanlinearly when more cores are available.Table 1-5 Scheduling opportunities scale exponentially when there are more cores1.5.3 Comparing ESXi to other VI3 editionsVMware ESXi is one of the new VMware VI Editions being offered from VMwareand provides the same functionality as ESX 3.5. VMware ESXi can be upgradedto VI Foundation, Standard, and Enterprise Editions to provide additionalmanagement features as detailed in Table 1-6.Table 1-6 Feature comparisonESX Host Server Number of Cores Schedulingopportunities(VM = 2 vCPUs)4-way Dual Core 8 288-way Dual Core 16 1208-way Quad Core 32 496Feature VMware ESXi VI Foundation VI Standard VI EnterpriseVMFS Virtual SMP Yes Yes Yes YesVC Agent - CentralmanagementNo Yes Yes YesUpdate manager No Yes Yes YesConsolidated backup No Yes Yes YesHigh availability No No Yes YesDRS - Resource management No No No YesDPM - Power management No No No YesVMotion - Live VM migration No No No YesStorage VMotion - Live VM diskfile migrationNo No No Yes
