Chapter 2. Product positioning 75 Physical memory limitshttp://msdn.microsoft.com/en-us/library/aa366778(VS.85).aspx#physical_memory_limits_windows_server_2003 Microsoft White Paper: Application Software Considerations for NUMA-BasedSystemshttp://www.microsoft.com/whdc/archive/numa_isv.mspx2.6.3 Scaling Microsoft Windows Server 2008 and Hyper-VFor a detailed discussion of the features of Microsoft Windows Server 2008 andHyper-V for use on the IBM x3850 M2 and x3950 M2, see the Microsoft whitepaper, Inside Windows Server 2008 Kernel Changes, available from:http://technet.microsoft.com/en-us/magazine/cc194386.aspxTable 2-6 lists features supported by the various Windows Server 2008 editions.Table 2-6 Features of the Windows Server 2008 familyFeatures StandardEditionEnterpriseEditionDatacenterEditionWebEditionEdition availability32-bit releasea Yes Yes Yes Yesx64 release Yes Yes Yes Yes64-bit release (Itanium) b No No No NoScalabilityMaximum Processors Sockets 4 8 x64: 6432-bit: 32c4Number of x3950 M2 nodes x64: Twod x64: Two Twoe NoneMemory — 32-bit 4 GB 64 GB 64 GB 4 GBMemory — x64 (64-bit) 32 GB 2 TBf 2 TBf 32 GBHyper-Threading Yes Yes Yes YesHot-add memory No Yes Yes NoHot-replace memory No No Yes NoHot-add processors No No Yesg NoNUMA support No Yes Yes No