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Geek with special skills

Windows Server 2008 Editions and System Requirements

Windows Server 2008 Standard Edition

Windows Server 2008 Standard is one of Microsoft’s entry level server
offerings (alongside Windows Web Server 2008) and is one of the least
expensive of the various editions available. Both 32-bit and 64-bit
versions are available, and in terms of hardware Standard Edition
supports up to 4GB of RAM and 4 processors.

Windows Server 2008 is primarily targeted and small and mid-sized
businesses (SMBs) and is ideal for providing domain, web, DNS, remote
access, print, file and application services. Support for clustering,
however, is notably absent from this edition.

An upgrade path to Windows Server 2008 Standard is available from Windows 2000 Server and Windows Server 2003 Standard Edition.

Windows Server 2008 Enterprise Edition

Windows Server 2008 Enterprise Edition provides greater functionality
and scalability than the Standard Edition. As with Standard Edition
both 32-bit and 64-bit versions are available. Enhancements include
support for as many as 8 processors and up to 64GB of RAM on 32-bit
systems and 2TB of RAM on 64-bit systems.

Additional features of the Enterprise edition include support for
clusters of up to 8 nodes and Active Directory Federated Services (AD
FS).

Windows Server 2000, Windows 2000 Advanced Server, Windows Server
2003 Standard Edition and Windows Server 2003 Enterprise Edition may all
be upgraded to Windows Server 2008 Enterprise Edition.

Windows Server 2008 Datacenter Edition

The Datacenter edition represents the top end of the Windows Server
2008 product range and is targeted at mission critical enterprises
requiring stability and high uptime levels. Windows Server 2008
Datacenter edition is tied closely to the underlying hardware through
the implementation of custom Hardware Abstraction Layers (HAL). As such,
it is currently only possible to obtain Datacenter edition as part of a
hardware purchase.

As with other versions, the Datacenter edition is available in 32-bit
and 64-bit versions and supports 64GB of RAM on 32-bit systems and up
to 2TB of RAM on 64-bit systems. In addition, this edition supports a
minimum of 8 processors up to a maximum of 64.

Upgrade paths to Windows Server 2008 Datacenter Edition are available from the Datacenter editions of Windows 2000 and 2003.

Windows Web Server 2008

Windows Web Server 2008 is essentially a version of Windows Server
2008 designed primarily for the purpose of providing web services. It
includes Internet Information Services (IIS) 7.0 along with associated
services such as Simple Mail Transfer Protocol (SMTP) and Telnet. It is
available in 32-bit and 64-bit versions and supports up to 4 processors.
RAM is limited to 4GB and 32GB on 32-bit and 64-bit systems
respectively.

Windows Web Server 2008 lacks many of the features present in other
editions such as clustering, BitLocker drive encryption, multipath I/O,
Windows Internet Naming Service (WINS), Removable Storage Management and
SAN Management.

Windows Server 2008 Features Matrix

Now that we have covered in general terms the various different
editions of Windows Server 2008 we can now look in a little more detail
at a feature by feature comparison of the four different editions. This
is outlined in the following feature matrix:

Feature Enterprise Datacenter Standard Web Itanium
ADFS   Web Agent Yes Yes Yes No No
Directory   uIDM Yes Yes Yes No No
Desktop   Experience Yes Yes Yes Yes No
Windows   Clustering Yes Yes No No Yes
Windows   Server Backup Yes Yes Yes Yes Yes
Windows Network Load   Balancing (WNLB) Yes Yes Yes Yes Yes
Simple   TCP/IP Services Yes Yes Yes No Yes
SMTP Yes Yes Yes Yes No
Subsystem for Unix-Based   Applications (SUA) Yes Yes Yes No Yes
Telnet   Client Yes Yes Yes Yes Yes
Telnet   Server Yes Yes Yes Yes Yes
Microsoft   Message Queuing (MSMQ) Yes Yes Yes No Yes
RPC   Over HTTP Proxy Yes Yes Yes No Yes
Windows Internet Naming   Service (WINS) Yes Yes Yes No No
Wireless   Client Yes Yes Yes No No
Windows System Resource   Manager (WSRM) Yes Yes Yes Yes Yes
Simple   SAN Management Yes Yes Yes No No
LPR   Port Monitor Yes Yes Yes No No
The Windows Foundation   Components for WinFX Yes Yes Yes Yes Yes
BITS   Server Extensions Yes Yes Yes No Yes
iSNS   Server Service Yes Yes Yes Yes No
BitLocker   Drive Encryption Yes Yes Yes No Yes
Multipath   IO Yes Yes Yes No Yes
Removable   Storage Management Yes Yes Yes No Yes
TFTP Yes Yes Yes No Yes
SNMP Yes Yes Yes Yes Yes
Server   Admin Pack Yes Yes Yes Yes No
RDC Yes Yes Yes No Yes
Peer-to-Peer Name   Resolution Protocol Yes Yes Yes Yes Yes
Recovery   Disk Yes Yes Yes Yes Yes
Windows   PowerShell Yes Yes Yes Yes Yes

Windows Server 2008 Hardware Requirements

Before investing time and resources into downloading and installing
Windows Server 2008, the first step is to gain an appreciation of the
hardware requirements necessary to effectively run the operating system.
The following table provides an overview of Microsoft’s recommended
minimum hardware:

Category Minimum / Recommended Requirements
Processor • Minimum: 1GHz (x86 processor) or 1.4GHz (x64 processor)

• Recommended: 2GHz or faster

Note: For Itanium based systems an Intel Itanium 2 processor is   required.

Memory • Minimum: 512MB RAM

• Recommended: 2GB RAM or greater

• Maximum (32-bit systems): 4GB (Standard) or 64GB (Enterprise and   Datacenter)

• Maximum (64-bit systems): 32GB (Standard) or 2TB (Enterprise, Datacenter   and Itanium-Based Systems)

Available   Disk Space • Minimum: 10GB

• Recommended: 40GB or greater

Note: Systems with RAM in excess of 16GB will require
greater amounts   of disk space to accommodate paging, hibernation, and
dump files

Drive DVD-ROM   drive
Display   and Peripherals • Super VGA or greater-resolution monitor (800×600)

• Keyboard

• Microsoft Mouse or compatible pointing device

As with the specified system requirements for all Windows systems it is best to aim for the Recommended values rather than the Minimum
values to ensure acceptable levels of performance. For example, whilst
it is possible to run Windows Server 2008 in 512Mb of RAM it is unlikely
that performance levels will be optimal with such a configuration.

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