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Windows Server 2008 R2
| Version of the Windows NT operating system | |
|
Screenshot of Windows Server 2008 R2 showing the Server Manager application which is automatically opened when an administrator logs on |
|
| Developer | Microsoft |
|---|---|
| OS family | Windows Server |
| Source model |
|
| Released to manufacturing |
July 22, 2009; 15 years ago |
| General availability |
October 22, 2009; 15 years ago[1] |
| Latest release | Service Pack 1 with May 2025 monthly update rollup (6.1.7601.27729) / May 13, 2025; 0 days ago[2] |
| Marketing target | Business |
| Update method | Windows Update, Windows Server Update Services, SCCM |
| Platforms | x86-64 (and originally Itanium) |
| Kernel type | Hybrid (Windows NT kernel) |
| Default user interface |
Windows shell (Graphical) |
| License | Commercial software (Retail, volume licensing, Microsoft Software Assurance) |
| Preceded by | Windows Server 2008 (2008) |
| Succeeded by | Windows Server 2012 (2012) |
| Official website | docs |
| Support status | |
| Mainstream support ended on January 13, 2015[3] Extended support ended January 14, 2020[3] Paid updates; only for Standard, Enterprise, and Datacenter volume licensed editions:[4][5] ESU (Extended Security Updates) support ended on January 10, 2023, for non-Azure & Grandfathered[7] Premium Assurance security update support until January 13, 2026.[8][9] See § Paid extended updates for details. |
Windows Server 2008 R2, codenamed «Windows Server 7» or «Windows Server 2008 Release 2», is the eighth major version of the Windows NT operating system produced by Microsoft to be released under the Windows Server brand name. It was released to manufacturing on July 22, 2009,[10] and became generally available on October 22, 2009, the same respective release dates of Windows 7.[11] It is the successor to the Windows Vista-based Windows Server 2008, released the previous year, and was succeeded by the Windows 8-based Windows Server 2012.
Enhancements in Windows Server 2008 R2 include new functionality for Active Directory, new virtualization and management features, version 7.5 of the Internet Information Services web server and support for up to 256[12] logical processors. It is built on the same kernel used with the client-oriented Windows 7, and is the first server operating system released by Microsoft which dropped support for 32-bit processors, an addition which carried over to the consumer-oriented Windows 11.
It is the final version of Windows Server that includes Enterprise and Web Server editions, the final that got a service pack from Microsoft and the final version that supports IA-64 and processors without PAE, SSE2 and NX (although a 2018 update dropped support for non-SSE2 processors).
Seven editions of Windows Server 2008 R2 were released: Foundation, Standard, Enterprise, Datacenter, Web, HPC Server and Itanium, as well as Windows Storage Server 2008 R2. A home server variant called Windows Home Server 2011 was also released.
Microsoft introduced Windows Server 2008 R2 at the 2008 Professional Developers Conference as the server variant of Windows 7, based on the Windows NT kernel.
On January 7, 2009, a beta release of Windows Server 2008 R2 was made available to subscribers of Microsoft’s TechNet and MSDN programs, as well as those participating in the Microsoft Connect program for Windows 7. Two days later, the beta was released to the public via the Microsoft Download Center.[13]
On April 30, 2009, the release candidate was made available to subscribers of TechNet and MSDN.[14] On May 5, 2009, the release candidate was made available to the public via the Microsoft download center.[15]
According to Windows Server Blog,[16] the following are the dates of the year 2009 when Microsoft Windows Server 2008 R2 has been made available to various distribution channels:
- OEMs received Windows Server 2008 R2 in English and all language packs on July 29. The remaining languages were available around August 11.
- Independent software vendor (ISV) and independent hardware vendor (IHV) partners have been able to download Windows Server 2008 R2 from MSDN starting on August 14.
- IT professionals with TechNet subscriptions were able to download Windows Server 2008 R2 and obtain product keys for English, French, German, Italian, and Spanish variants beginning August 14 and all remaining languages beginning August 21.
- Developers with MSDN subscriptions have been able to download and obtain product keys for Windows Server 2008 R2 in English, French, German, Italian, and Spanish starting August 14 and all remaining languages starting August 21.
- Microsoft Partner Program (MPP) gold/certified members were able to download Windows Server 2008 R2 through the MPP portal on August 19.
- Volume licensing customers with an existing Software Assurance (SA) contracts were able to download Windows Server 2008 R2 on August 19 via the Volume License Service Center.
- Volume licensing customers without an SA were able to purchase Windows Server 2008 R2 through volume licensing by September 1.
Additionally, qualifying students have been able to download Windows Server 2008 R2 Standard edition in 15 languages from the Microsoft Imagine program (known as DreamSpark at the time).[17]
A reviewer guide published by the company describes several areas of improvement in R2.[18] These include new virtualization capabilities (Live Migration, Cluster Shared Volumes using Failover Clustering and Hyper-V), reduced power consumption, a new set of management tools and new Active Directory capabilities such as a «recycle bin» for deleted objects. IIS 7.5 has been added to this release which also includes updated FTP server services. Security enhancements include encrypted clientless authenticated VPN services through DirectAccess for clients using Windows 7, and the addition of DNSSEC support for DNS Server Service. Even though DNSSEC as such is supported, only one signature algorithm is available:[19] #5/RSA/SHA-1. Since many zones use a different algorithm – including the root zone – this means that in reality Windows still can’t serve as a recursive resolver.
The DHCP server supports a large number of enhancements[20] such as MAC address-based control filtering, converting active leases into reservations or link layer based filters, DHCppP Name protection for non-Windows machines to prevent name squatting, better performance through aggressive lease database caching, DHCP activity logging, auto-population of certain network interface fields, a wizard for split-scope configuration, DHCP Server role migration using WSMT, support for DHCPv6 Option 15 (User Class) and Option 32 (Information Refresh Time). The DHCP server runs in the context of the Network Service account which has fewer privileges to reduce potential damage if compromised.
Windows Server 2008 R2 supports up to 64 physical processors[21] or up to 256 logical processors per system. (Only the Datacenter and Itanium editions can take advantage of the capability of 64 physical processors. Enterprise, the next-highest edition after those two, can only use 8.)[22] When deployed in a file server role, new File Classification Infrastructure services allow files to be stored on designated servers in the enterprise based on business naming conventions, relevance to business processes and overall corporate policies.[23]
Server Core includes a subset of the .NET Framework, so that some applications (including ASP.NET web sites and Windows PowerShell 2.0) can be used.
Performance improvement was a major area of focus for this release; Microsoft has stated that work was done to decrease boot time, improve the efficiency of I/O operations while using less processing power, and generally improve the speed of storage devices, especially iSCSI.
Active Directory has several new features when raising the forest and domain functional levels[24] to Windows Server 2008 R2: Two added features are Authentication Mechanism Assurance and Automatic SPN Management. When raising the forest functional level, the Active Directory recycle bin feature is available and can be enabled using the Active Directory Module for PowerShell.[25]
Support for the RTM version of Windows Server 2008 R2 ended on April 9, 2013.[3][26] Users had to install Service Pack 1 to continue receiving updates.[27]
On January 13, 2015, Windows Server 2008 R2 exited mainstream support and entered the extended support phase; Microsoft continued to provide security updates every month for Windows Server 2008 R2, however, free technical support, warranty claims, and design changes were no longer offered. Extended support ended on January 14, 2020, about ten years after the release of Windows Server 2008 R2.[28]
In August 2019, researchers reported that «all modern versions of Microsoft Windows» may be at risk for «critical» system compromise due to design flaws of hardware device drivers from multiple providers.[29]
Microsoft announced that Server 2008 R2 would be the last version of Windows supporting the Itanium architecture, with extended support to end on July 10, 2018.[30][31][32] However, monthly security updates continued until January 14, 2020,[33] and a final unscheduled update appeared in May 2020 via WSUS.[34]
Paid extended updates
[edit]
Windows Server 2008 R2 was eligible for the paid ESU (Extended Security Updates) program. This program allowed volume license customers to purchase, in yearly installments, security updates for the operating system until January 10, 2023, only for Standard, Enterprise, and Datacenter volume licensed editions. The program was included with Microsoft Azure purchases, and offered Azure customers an additional year of support, until January 9, 2024.[3][4][6][35]
Prior to the ESU program becoming available, Windows Server 2008 R2 was eligible for the now discontinued, paid Premium Assurance program (an add-on to Microsoft Software Assurance) available to volume license customers. Microsoft will, however, honor the program for customers who purchased it between March 2017 and July 2018 (while it was available). The program provides an extra six years of security update support, until January 13, 2026.[9][7][8][36] This will mark the final end of all security updates for the Windows NT 6.1 product line after 16 years, 5 months, and 22 days.
Paid extended updates are not available for Itanium customers.[37][36]
On February 9, 2011, Microsoft officially released Service Pack 1 (SP1) for Windows 7 and Windows Server 2008 R2 to OEM partners. Apart from bug fixes, it introduces two new major functions, RemoteFX and Dynamic Memory. RemoteFX enables the use of graphics hardware support for 3D graphics in a Hyper-V based VM. Dynamic Memory makes it possible for a VM to only allocate as much physical RAM as is needed temporarily for its execution. On February 16, SP1 became available for MSDN and TechNet subscribers as well as volume licensing customers. As of February 22, SP1 is generally available for download via the Microsoft Download Center and available on Windows Update.[38]
System requirements
[edit]
System requirements for Windows Server 2008 R2 are as follows:[39]
- Processor
- 1.4 GHz x86-64 or Itanium 2 processor
- Memory
- Minimum: 512 MB RAM (may limit performance and some features)
- Recommended: 2 GB RAM
- Maximum: 8 GB RAM (Foundation), 32 GB RAM (Standard), or 2 TB RAM (Enterprise, Datacenter and Itanium)
- Display
- Super VGA (800×600) or higher
- Disk Space Requirements
- Minimum (editions higher than Foundation): 32 GB or more
- Minimum (Foundation edition) 10 GB or more.
- Computers with more than 16 GB of RAM require more disk space for paging and dump files.[39]
- Other
- DVD drive, keyboard and mouse, Internet access (required for updates and online activation)
- BlueKeep (security vulnerability)
- Comparison of Microsoft Windows versions
- Comparison of operating systems
- History of Microsoft Windows
- List of operating systems
- Microsoft Servers
- ^ https://www.microsoft.com/presspass/features/2009/Jun09/06-02SteveGuggenheimer.mspx
- ^ «May 13, 2025—KB5058430 (Monthly Rollup)». Microsoft. May 13, 2025.
- ^ a b c d e «Windows Server 2008 R2 Lifecycle Policy». Microsoft. Retrieved June 19, 2024.
- ^ a b «Product Lifecycle FAQ – Extended Security Updates – Microsoft Lifecycle». learn.microsoft.com. Retrieved 2024-06-19.
- ^ «Announcing new options for SQL Server 2008 and Windows Server 2008 End of Support». azure.microsoft.com. 12 July 2018. Retrieved 2021-03-26.
- ^ a b «Extended Security Updates for SQL Server and Windows Server 2008 and 2008 R2 | Microsoft». Microsoft. Retrieved June 19, 2024.
- ^ a b Mackie, Kurt (July 13, 2018). «Microsoft Replacing ‘Premiere Assurance’ Support with New Security Plan». Redmond Channel Partner. 1105 Media. Retrieved May 11, 2024.
- ^ a b «Windows Server Premium Assurance SQL Server Premium Assurance» (PDF). Licensing School. Retrieved May 11, 2024.
- ^ a b Foley, Mary Jo (December 8, 2016). «Microsoft to offer option of 16 years of Windows Server, SQL Server support through new Premium Assurance offer». ZDNet. Red Ventures. Retrieved May 11, 2024.
- ^ Server and Cloud Platform Team (2009-07-22). «Windows Server 2008 R2 Reaches the RTM Milestone!». Blogs.technet.com. Archived from the original on July 23, 2009. Retrieved 2011-06-15.
- ^ «Windows 7 and Windows Server 2008 R2 Timelines Shared at Computex». News Center. Taipei, Taiwan: Microsoft. June 3, 2009.
- ^ «Windows Server 2008 R2 Datacenter Edition Overview». Microsoft.com. Archived from the original on September 14, 2008. Retrieved 2011-06-15.
- ^ Emil Protalinski (9 January 2009). «Windows 7 public beta is available now».
- ^ «Announcing Windows Server 2008 R2 Release Candidate (RC)». Microsoft TechNet. Archived from the original on May 15, 2009.
- ^ «Download Windows Server 2008 R2 RC .iso images (May2009)». Microsoft. Archived from the original on May 11, 2009.
- ^ House, Crissy (22 July 2009). «When to expect Windows Server 2008 R2 RTM». Windows Server Blog. Microsoft. Archived from the original on July 23, 2009.
- ^ «Windows Server 2008 R2 on DreamSpark». Microsoft. Archived from the original on July 18, 2011.
- ^ «Windows Server 2008 R2 Reviewers Guide». Microsoft. November 2008. Archived from the original on February 5, 2009. Retrieved 2009-08-31.
- ^ «Understanding DNSSEC in Windows». Technet.microsoft.com. 2009-10-07. Retrieved 2011-06-15.
- ^ «New features in DHCP for Windows Server 2008 R2/Windows 7». Blogs.technet.com. Archived from the original on March 1, 2009. Retrieved 2011-06-15.
- ^ «Windows Server 2008 R2: Scalability for the Enterprise Customer». Microsoft.com. Archived from the original on February 13, 2008. Retrieved 2011-06-15.
- ^ «Windows7 and Windows Server 2008 R2 support more than 64 Processors in one System». Microsoft. November 2008. Archived from the original on December 17, 2008. Retrieved 2009-03-06.
- ^ «R2: How Would You Manage Without It?». MSDN Blogs. Archived from the original on May 8, 2009. Retrieved 2009-04-30.
- ^ «Appendix of Functional Level Features». Microsoft Technet. Retrieved 2009-10-06.
- ^ «Server 2008 R2: Active Directory Functional Levels». Praetorian Prefect. Archived from the original on October 12, 2009. Retrieved 2009-10-06.
- ^ Rose, Stephen L (February 14, 2013). «Windows 7 RTM End Of Support Is Right Around The Corner». Springboard Series Blog. Microsoft. Archived from the original on May 2, 2013. Retrieved March 27, 2013.
- ^ «Windows 7 users: Move to SP1 to continue receiving Microsoft support». ZDNet. CBS Interactive. Retrieved February 14, 2013.
- ^ «Windows Server 2008 R2 End-of-Life Support is Near». June 24, 2019. Retrieved October 26, 2019.
- ^ Winder, Davey (August 11, 2019). «Critical Windows 10 Warning: Millions Of Users At Risk». Forbes. Retrieved August 11, 2019.
- ^ «Windows Server 2008 R2 to Phase Out Itanium». Windows Server Blog. 2 April 2010.
Why the change? The natural evolution of the x86 64-bit («x64») architecture has led to the creation of processors and servers which deliver the scalability and reliability needed for today’s «mission-critical» workloads.
- ^ «Microsoft ending support for Itanium». 4 April 2010. Archived from the original on 30 November 2018. Retrieved 14 September 2017.
SQL Server 2008 R2 and Visual Studio 2010 are also the last versions to support Itanium.
- ^ «Microsoft Dropping Itanium Support – Redmond Channel Partner». Redmond Channel Partner. Retrieved 2018-05-14.
- ^ «Microsoft Update Catalog (search=Itanium)». Retrieved 2023-03-20.
- ^ «Itanium KB4552965 direct link». Retrieved 2023-03-20.
- ^ Sharwood, Simon (March 1, 2019). «Microsoft starts selling extended support for Windows Server 2008». nextmedia. Retrieved June 19, 2024.
- ^ a b «Microsoft Update Catalog 2024-06». catalog.update.microsoft.com. Retrieved 2024-06-19.
- ^ «Microsoft Update Catalog 2022-01». catalog.update.microsoft.com. Retrieved 2024-06-19.
- ^ «Announcing Availability of Windows 7 and Windows Server 2008 R2 SP1». Archived from the original on February 11, 2011.
- ^ a b «Windows Server 2008 R2: System Requirements». Microsoft.com. Archived from the original on February 9, 2008. Retrieved 2011-06-15.
- ^ «Windows Server 2008 R2 Editions Comparison by Technical Specifications». Microsoft. Archived from the original on 22 December 2010.
- ^ Archiveddocs (5 September 2011). «What’s New in Distributed File System». technet.microsoft.com. Retrieved 2 April 2018.
- Windows Server 2008 R2 on Microsoft TechNet
- Thurrott, Paul (6 October 2010). «Windows Server 2008 R2 Preview». Supersite for Windows. Penton. Archived from the original on April 10, 2011.
- Convert Windows Server 2008 R2 to Workstation
Objectives: Learn the specifics about each Windows Server 2008 R2 edition.
Prerequisites: you should understand what a server role is.
Key terms: server, services, edition, hot, connections, memory, directory, Windows, limited, RAM
Windows Editions
The most important difference between Server 2008 and Server 2008 R2 is that Server 2008 R2 is only available as 64 bit version. Also, Server 2008 editions are different from Server 2008 R2 editions. Different editions of Windows have different specification and different features. Here we will be talking about Server 2008 R2 editions, and there are seven of them: Foundation, Standard, Enterprise, Datacenter, Web, HPC Server, Itanium and Windows Storage Server 2008 R2 (Essentials Edition).
Foundation Edition
The Foundation edition is used for small and medium sized businesses. It supports up to 8 GB of RAM and one physical CPU. With routing and remote access (Network Access Connections), there is a limit of 50 RRAS connections and 10 IAS connections. Terminal Services (Remote Desktop Services) is limited to 50 TS Gateway connections. Server roles which are available in full are:
- Active Directory Domain Services
- Active Directory Lightweight Directory Services
- Active Directory Rights Management Services
- Application Server
- DHCP Server
- DNS Server
- Fax Services
- Print and Document Services
- Web Services (IIS)
- Windows Deployment Services (WDS)
- Windows Server Update Services (WSUS)
Partially available server roles are:
- Active Directory Certificate Services – limited to creating Certificate Authorities. There are no features like NDES and Online Responder Services.
- File Services – limited to 1 standalone DFS root.
- Network Policy and Access Services – limited to 50 RRAS connections and 10 IAS connections.
- Remote Desktop Services – limited to 50 Terminal Service Gateway connections.
Hyper-V server role is not available. When it comes to technical specification, the Foundation edition doesn’t support Cross-File Replication (DFS-R), Failover Cluster Nodes (Nodes), Fault Tolerant Memory Sync, Hot Add Memory, Hot Add Processors, Hot Replace Memory, Hot Replace Processors, IA64 RAM, and IA64 Sockets. There are no Virtual Image Use Rights.
Standard Edition
The standard edition is also used for small and medium sized businesses. It supports up to 32 GB of RAM and 4 physical CPUs. There is a limit of 250 RRAS Network Access Connections and 50 IAS Network Access Connections. Terminal Services (Remote Desktop Services Gateway is limited to 250 Terminal Services Gateway connections.
Server roles which are available in full are:
- Active Directory Domain Services
- Active Directory Lightweight Directory Services
- Active Directory Rights Management Services
- Application Server
- DHCP Server
- DNS Server
- Fax Services
- Hyper-V
- Print and Document Services
- Web Services (IIS)
- Windows Deployment Services (WDS)
- Windows Server Update Services (WSUS)
Roles that are partially available are:
- Active Directory Certificate Services – limited to creating Certificate Authorities. There are no features like NDES and Online Responder Services.
- File Services – limited to 1 standalone DFS root.
- Network Policy and Access Services – limited to 350 RRAS connections, 50 IAS connections and 2 IAS Server Groups.
- Remote Desktop Services – limited to 250 Terminal Service Gateway connections.
When comparing Foundation and Standard edition, note that in Standard edition we have a Hyper-V role available. When it comes to technical specification, the Standard edition doesn’t support Cross-File Replication (DFS-R), Failover Cluster Nodes (Nodes), Fault Tolerant Memory Sync, Hot Add Memory, Hot Add Processors, Hot Replace Memory, Hot Replace Processors, IA64 RAM, and IA64 Sockets. However, we have Virtual Image Use Rights for the host (physical instance) and 1 virtual machine.
Enterprise Edition
The Enterprise edition provides additional hardware support and some additional server roles, when compared to Standard edition. It supports up to 2 TB of RAM and 8 physical CPUs. There no limit on RRAS or IAS Network Access Connections, and no limit on Terminal Services Gateway connections.
Enterprise edition supports all available roles in full (including Active Directory Federation Services).
When it comes to technical specification, the Enterprise edition supports Cross-File Replication (DFS-R), 16 Failover Cluster Nodes (Nodes), Fault Tolerant Memory Sync, Hot Add Memory and Virtual Image Use Rights for the host (physical instance) and 4 virtual machines. Enterprise edition doesn’t support Hot Add Processors, Hot Replace Memory, Hot Replace Processors, IA64 RAM, and IA64 Sockets.
Datacenter Edition
The Datacenter is similar to the Enterprise edition, but provides additional hardware support. It supports up to 2 TB of RAM and 64 physical CPUs. There no limit on RRAS or IAS Network Access Connections, and no limit on Terminal Services Gateway connections.
Enterprise edition supports all available roles in full.
When it comes to technical specification, the Enterprise edition supports Cross-File Replication (DFS-R), 16 Failover Cluster Nodes (Nodes), Fault Tolerant Memory Sync, Hot Add Memory, Hot Add Processors, Hot Replace Memory, Hot Replace Processors, and unlimited Virtual Image Use Rights. Enterprise edition doesn’t support , IA64 RAM, and IA64 Sockets.
Web Server Edition
This edition is intended to provide a low cost server edition for those who only want to use a web application server role. It supports up to 32 GB of RAM and 4 physical CPUs. There no support for RRAS or IAS Network Access Connections, and no support for Terminal Services Gateway connections.
Server roles that are available in full are Web Services (IIS) and DNS Server. Other roles are not available.
The Web Server edition doesn’t support Cross-File Replication (DFS-R), Failover Cluster Nodes (Nodes), Fault Tolerant Memory Sync, Hot Add Memory, Hot Add Processors, Hot Replace Memory, Hot Replace Processors, IA64 RAM, and IA64 Sockets.
Itanium Edition
The Itanium edition can be used on Intel Itanium 64 bit processor. It supports up to 2 TB of RAM (IA64 RAM) and 44 physical CPUs (IA64 Sockets). There no support for RRAS Network Access Connections, but it supports 2 IAS Network Access Connections. There is no support for Terminal Services Gateway connections.
Server roles that are available in full are Application Server, and Web Services (IIS). Other roles are not available.
The Itanium edition supports Cross-File Replication (DFS-R), 8 Failover Cluster Nodes (Nodes), Fault Tolerant Memory Sync, Hot Add Memory, Hot Add Processors, Hot Replace Memory, Hot Replace Processors, IA64 RAM, and IA64 Sockets. Virtual Image Use Rights are unlimited.
Server Core Installation
All Windows Server 2008 R2 editions (except Itanium and Foundation) can be installed as a server core installation. Server core installation option provides a minimal, low-maintenance environment of Server 2008 R2. By using server core installation we reduce the attack surface of our server.
On the server core installation we use a command prompt for administration (it has limited GUI support). This also means that core installations have lower hardware requirement. However, in core installations there is no .NET framework support.
Server core can only run a limited set of server roles. The Web Server edition can run:
- Web Services (IIS)
- Media Services – must be downloaded separately
- DNS Server
The Standard edition can run:
- Active Directory Certificate Services
- Active Directory Domain Services
- Active Directory Lighweight Directory Services
- DHCP Server
- DNS Server
- File Services – limited to one standalone DFS root
- Hyper-V
- Media Services – must be downloaded separately
- Print Services
- Web Services (IIS)
The Enterprise and Datacenter core installations can run all Standard edition core roles, in addition to BranchChache Hosted Cache role.
| Purchase and download the full PDF and ePub versions of this eBook only $9.99 |
Before embarking on the installation of Windows Server 2008, it is important to first gain an understanding of the different editions available and the corresponding hardware requirements. It is also important to be aware of the upgrade options available with each edition. With this objective in mind, this chapter will focus on providing an overview of both the different Windows Server 2008 editions and the recommended hardware requirements.
Contents
Contents
|
||
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. Only a 64-bit versions are available, and in terms of hardware Standard Edition supports up to 32GB 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
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Windows Server 2008 Enterprise Edition provides greater functionality and scalability than the Standard Edition. As with Standard Edition, only a 64-bit version is available. Enhancements include support for as many as 8 processors and up to 2TB of RAM.
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 only in a 64-bit version and supports up to 2TB of RAM. 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 a 64-bit version only and supports up to 4 processors. RAM is limited to 32GB.
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
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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: 32GB (Standard) or 2TB (Enterprise, Datacenter) |
| 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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