Microsoft has released multiple editions of Windows Server 2008. Most editions come
In both 32-bit and 64-bit editions except for the Itanium edition, which comes only in
The 64-bit edition.
Three include virtualization capabilities using the Hyper-V virtualization technology.
Hyper-V is the virtual machine technology that allows multiple operating systems to run
Concurrently on the same system. Virtualization can be used for server consolidation where
Multiple servers can be combined onto a single server or to consolidate testing or development
Environments. Hyper-V will work only on 64-bit systems.
The editions that include Hyper-V are as follows. The most significant differences
Between these editions are related to how many virtual servers each edition can host.
Windows Server 2008 Standard with Hyper-V The Standard with Hyper-V edition is for
Small to medium-sized businesses. It includes support for a single virtual
Windows Server 2008 Enterprise with Hyper-V The Enterprise edition is for larger organizations
And can support up to four virtual servers. It also includes support for clustering
And hot-add memory capabilities.
Windows Server 2008 Datacenter with Hyper-V The Datacenter edition is for high-end
Applications and large-scale virtualization. It adds to the features of the Enterprise edition,
Including hot-add processor capabilities. An unlimited number of virtual servers can be
Hosted on the Datacenter edition.
The same three editions exist without Hyper-V:
Windows Server 2008 Standard without Hyper-V The Standard with Hyper-V edition is
For small to medium-sized businesses.
Windows Server 2008 Enterprise without Hyper-V The Enterprise edition is for larger
Windows Server 2008 Datacenter without Hyper-V The Datacenter edition is for highend
Applications, including very large databases.
Additionally, two editions are designed for specific workloads:
Windows Web Server 2008 This edition is designed to be a dedicated web server and
Hosts Internet Information Services (IIS) edition 7.0 and all the associated components such
As ASP. NET and the Microsoft. NET Framework.
Windows Server 2008 for Itanium-based systems This is designed to work on systems
Using the high-end 64-bit Itanium processors. It is optimized for large databases.