Product Overview Windows Server 2008 R2 is a multi-purpose server Providing uninterrupted business services to designed to increase the reliability and flexibility of your employees, vendors, and partners around the clock server or private cloud infrastructure, helping you to save has become a critical business factor for global time and reduce costs. It provides you with powerful tools businesses. Remote employees and international to react to business needs faster than ever before with customers and partners need to have continuous greater control and confidence. access to systems and data. A disruption in services can result in diminished productivity and lost The latest release of Service Pack 1 (SP1) for Windows opportunities. Server 2008 R2 delivers many improvements. Whether you want to consolidate servers, build a private cloud, or  Windows Server 2008 R2 Standard. This edition offer Virtual Desktop Infrastructure (VDI), the Windows features built-in, enhanced web capabilities and Server 2008 R2 features enable you to take your data includes virtualization technology. It is designed to center and desktop strategy to a new level. increase the reliability and flexibility of your server infrastructure while helping save time and reduce Product Editions costs. Its powerful tools give you greater control over Each edition of Windows Server is designed to provide your servers and help you streamline configuration value based on your specific needs. and management tasks.  Windows Server 2008 R2 Datacenter. This edition is  Windows Server 2008 R2 Foundation. This edition optimized for large-scale virtualization of workloads provides you with a base to run most small business that require the highest levels of scalability, reliability, applications. It’s an affordable platform for the core and availability to support large, mission-critical portfolio of IT capabilities including file and print applications. With unlimited virtualization use rights sharing, remote access, and security. It features a and a hypervisor-based virtualization technology, simple and familiar Windows experience that makes it Windows Server 2008 R2 Datacenter provides both easy for organizations to get up and running. flexibility and cost savings. Windows Server 2008 R2 Specialty Servers Datacenter also supports the memory and processing needs of large-scale, business-critical workloads such  Windows Server HPC Server 2008 R2. provides a as enterprise resource planning, databases, server comprehensive and cost-effective solution for consolidations, and custom and line-of-business harnessing the power of supercomputing. Out-of- applications. the-box, world-class performance and scalability enable organizations of all sizes to rapidly deploy  Windows Server 2008 R2 for Itanium-Based solutions ranging from personal HPC workstations to Systems. This edition offers a foundation optimized enterprise-level solutions spanning thousands of for the most compute-intensive and critical business cores. analytics and enterprise applications. It provides a fault-resistant platform suitable for high-end RISC or  Windows Web Server 2008 R2. Designed to be used UNIX system replacement, floating-point intensive as a single purpose Internet-facing web server that applications, and applications that share data delivers rock-solid foundation of infrastructure extensively among processes. This edition is only for capabilities, this edition is integrated with the newly servers based on the Intel Itanium architecture. re-architected IIS 7.0, ASP.NET, and the Microsoft .NET Framework. Windows Web Server 2008 R2 Windows Server 2008 R2 Enterprise. This edition enables your organization to rapidly deploy web provides you with high levels of system uptime and pages, websites, web applications, and web services. the scalability to support the growth of mission- critical applications. It also provides a cost-effective way to realize the benefits of virtualization.

Below are charts that illustrate the edition differences. Edition Comparison by Running Instances The running instances are either in a physical operating system environment (POSE) or a virtual operating system environment (VOSE).

Edition Running Instances in POSE and VOSE

Datacenter 1 + Unlimited*

Itanium 1 + Unlimited*

Enterprise 1 + 4

Standard 1 + 1

Foundation 1 in POSE only

HPC Server 1 in POSE only

Web Server 1 or 1

These are permitted instances per license or with Datacenter or Itanium when the server is licensed correctly. Note: When a customer is running all allowed virtual instances, the physical instance can be used only to manage and service the virtual instances. For information about licensing in virtual environments see the related white paper, Microsoft Volume Licensing Brief: Licensing Microsoft Server Products in Virtual Environments. *Subject to the limitations of the hardware.

Edition Comparison By Server Roles

Datacenter, Server Role Itanium Standard Foundation HPC Web Enterprise AD Certificate Services   1 1   AD Federation Services       AD Lightweight       Directory Services AD RMS       Application Server       DHCP Server       DNS Server       Fax Server       File Services   2 2   Hyper-V       Network Policy &   3 5   Access Services Print & Doc Services       Remote Desktop Services   4 6   UDDI Services       Web Services       Windows Deploy Services       Windows Server Update Services       (WSUS)

 = Full # = Partial/Limited  = Not Available AD = Active Directory RMS = Rights Management Service 1Limited to creating Certificate Authorities. There are no other ADCS features (NDES, Online Responder Service). See ADCS role documentation on TechNet for more information. 2Limited to one standalone DFS root. 3Limited to 250 RRAS connections, 50 IAS connections, and two IAS Server Groups. 4Limited to 250 Remote Desktop Services connections. . 5Limited to 50 RRAS connections, 10 IAS connections. 6Limited to 50 Remote Desktop Services connections.

Edition Comparison By Feature

Datacenter, Feature Itanium Standard Foundation HPC Web Enterprise AD RMS1       BranchCache Content Server       BranchCache Hosted Server 3      Direct Access       Hyper-V       Internet Information Services 7.5       Network Access Protection       Remote Desktop Services2       Server Core       Server Manager       Windows Deployment Services       Windows PowerShell      

1Requires an incremental Rights Management Services CAL for access. 2Requires an incremental Remote Desktop Services CAL for access. 3Enterprise only.

Windows Server 2008 R2 Licensing Overview Client Access License (CAL) CALs Types Windows Server is primarily licensed using a server plus  A Device CAL is an access license for every device Client Access License (CAL) model or a processor plus (used by any user). Device CALs make the most CAL model. economical and administrative sense for a customer with multiple users (such as shift workers) Edition Licensing Model for one device. Datacenter Processor + CAL  A User CAL is an access license for every named user Itanium Processor + CAL accessing the server (from any device). User CALs Enterprise Server + CAL make the most economical and administrative sense Standard Server + CAL if the number of users is fewer than the number of Foundation Server devices. For example, User CALs make sense when HPC Server Server you have an office worker with both a desktop Web Server Server computer and a portable computer. CAL Licensing Models The Windows Server CAL must be purchased for every user or device accessing a server either directly or  The per user or per device model is determined by indirectly. (See the Product Use Rights for exceptions the number of users or devices accessing the server and the Multiplexing-Client Access License (CAL) software. (The number of servers accessed does Requirements white paper for indirect access licensing not matter.) information.)  The per server model is determined by the maximum number of users or devices that may simultaneously access or use an instance of the software running on a particular server. The acquired Windows Server CALs are designated for use exclusively with a particular server.

CAL Version Requirements Server Access for External Users It is important to note that the version of CAL used to If you would like external users (that is, users who are not access the instance of Windows Server must be employees or on-site contractors) to access the network equivalent or higher in version than the server being and do not want to purchase individual CALs for each of accessed. An exception to this rule was introduced with them, you can acquire a Windows Server 2008 R2 External Windows Server 2008 and continued with Windows Connector (EC) license for each server running Windows Server 2008 R2. With this exception, when the POSE is Server 2008 R2 that will be accessed by these external being used only to manage the VOSE in virtualized users. Each physical server that external users access servers, the version of the operating system running in requires one EC license regardless of the number of the VOSE will determine the version of the CAL that is instances running. The right to run instances of the server needed. In this scenario, the Hyper-V server role must be software is licensed separately; the EC, like the CAL, the only role running in the POSE. simply permits access and are version and functionality specific. ECs must be the same version or later than the If you want to access additional or advanced functionality, server software being accessed. The decision on whether such as Remote Desktop Services or Rights Management to acquire CALs or an EC for external users is primarily a Services, you must purchase an additive CAL. For financial one. information, see the Base and Additive Client Access License white paper or the Product Use Rights.

Determining the Number of Licenses Needed

Edition # of Processor or Server # CALs Datacenter All processors must be licensed. There is a two- Equal to the number of users/devices accessing. processor minimum. Itanium All processors must be licensed. There is a two- Equal to the number of users/devices accessing. processor minimum. Enterprise One license per server. Equal to the number of users/devices accessing. Standard One license per server. Equal to the number of users/devices accessing. Foundation One license per server. None. Allows a maximum of 15 user accounts, which can be assigned to only one distinct user at a time. HPC Server One license per server. None. Web Server One license per server. None.

Licensing by Channel Channels If a Windows Server license is purchased with the server The channel in which an edition can be purchased varies through an OEM then the license cannot be reassigned. If by edition. the license is purchased through Volume Licensing there Volume are stipulations that allow enablining reassignment (see Edition OEM Retail SPLA Licensing the Product Use Rights for details). Datacenter     Itanium     Enterprise     Standard     Foundation     HPC Server     Web Server    

 Available  Not Available

Planning for Windows Server 2008 R2

If you are planning to deploy Windows Server 2008 R2, please remember:  Select your edition of Windows Server based on your virtualization and capability needs

 Software Assurance (SA) is the best way to protect

investments and access new versions as well as Deployment Planning Services and technical assistance. If you are looking for the best way to purchase Windows Server 2008 R2 remember:

 The Microsoft Enrollment for Core Infrastructure (ECI) will continue to offer the best value for private cloud and datacenter management pricing. Learn more information here.

 Core CAL and Enterprise CAL Suites will continue to be the most cost effective way to purchase client access licenses. Learn more here.  Microsoft offers attractive financing packages on all software purchases. This can provide additional

flexibility to help you get the IT you need and stay on budget. Visit www.microsoft.com/licensing for program details or to learn more. Or contact your

Microsoft Solution Partner directly or by calling 1-800-936-3500 in the United States and Canada.

This document is provided “as-is.” Information and views expressed in this document, including URL and other Internet website references, may change without notice. This document does not provide you with any legal rights to any intellectual property in any Microsoft product.