Variants of Windows Server 2003

Depend on particular size and type of business Windows Server 2003 comes in several variants.But all variants of Windows Server 2003 have the ability to share files and printers, act as an application server, and host message queues, provide email services, authenticate users.

Windows Small Business Server(SBS)

SBS includes Windows Server and additional technologies that helps small business. In SBS,the technologies are embedded such that it provides Remote Web Workplace, and offer management benefits such as integrated setup, enhanced monitoring, a unified management console, and remote access for small business.

The Standard Edition of SBS includes Services for collaboration, Microsoft Exchange server for e-mail, Fax Server, and the Active Directory for user management.It also provides a basic firewall, DHCP server and NAT router .

The Premium Edition of SBS includes the above plus Microsoft SQL Server 2000 and Microsoft Internet Security and Acceleration Server 2004.

SBS server has the following design limitations:

* Only one computer in a domain can be running Windows Server 2003 for Small Business Server.
* Windows Server 2003 for Small Business Server must be the root of the Active Directory forest.
* Windows Server 2003 for Small Business Server cannot trust any other domains.
* Windows Server 2003 for Small Business Server is limited to 75 users or devices depending on which type of CAL.
* Windows Server 2003 for Small Business Server is limited to 4GB of RAM .
* A Windows Server 2003 for Small Business Server domain cannot have any child domains.
* To remove the limits from SBS server upgrade to Server 2003 R2 Transition Pack.

     Web Edition

Windows Server 2003, Web Edition is mainly for building and hosting Web applications, Web pages, and XML Web Services. It is designed to be used primarily as an IIS 6.0 Web server and provides a platform for rapidly developing and deploying XML Web services and applications that use ASP.NET technology, a key part of the .NET Framework.Only 10 concurrent file-sharing connections are allowed at any moment. It is not possible to install Microsoft SQL Server and Microsoft Exchange software in this edition. However MSDE and SQL Server 2005 Express are fully supported after service pack 1 is installed.
Windows Server 2003 Web Edition supports a maximum of 2 processors with support for a maximum of 2GB of RAM. Additionally, Windows Server 2003, Web Edition cannot act as a domain controller. Additionally, it is the only version of Windows Server 2003 that does not include client number limitation upon Windows update services as it does not require Client Access Licenses.
   Standard Edition

Windows Server 2003, Standard Edition is for small to medium sized businesses. It supports file and printer sharing, offers secure Internet connectivity, and allows centralized desktop application deployment. This edition of Windows will run on up to 4 processors with up to 4 GB RAM.

Enterprise Edition

Windows Server 2003, Enterprise Edition is aimed towards medium to large businesses. It is a full-function server operating system that supports up to eight processors and provides enterprise-class features such as eight-node clustering using Microsoft Cluster Server (MSCS) software and support for up to 8 GB of memory .

Datacenter Edition

Windows Server 2003, Datacenter Edition is designed for infrastructures demanding high security and reliability. Windows Server 2003 is available for x86 32-bit, Itanium, and x64 processors. It supports a minimum of 8 processors and a maximum of 64 processors; however it is limited to 32 processors when run on 32-bit architecture.

It supports Non-Uniform Memory Access,better support for Storage Area Networks (SAN) and
also supports 8-node clustering.

Windows Compute Cluster Server

Windows Compute Cluster Server 2003 (CCS) is designed for high-end applications that require high performance computing clusters. It is designed to be deployed on numerous computers to be clustered together to achieve supercomputing speeds.
Computer Cluster Server uses the Microsoft Messaging Passing Interface v2 (MS-MPI) to communicate between the processing nodes on the cluster network.

Windows Storage Server

Windows Storage Server 2003, a part of the Windows Server 2003 series is a specialized server Operating System for Network Attached Storage (NAS). It is optimized for use in file and print sharing and also in Storage Area Network (SAN) scenarios. It is only available through Original equipment manufacturers (OEMs). Windows Storage Server 2003 does not require any Client access licenses.

Windows Storage Server 2003 NAS equipment can be headless, which means that they are without any monitors, keyboards or mice, and are administered remotely. Such devices are plugged into any existing IP network and the storage capacity is available to all users.

Windows Storage Server 2003 R2, as a follow-up to Windows Storage Server 2003, adds file-server performance optimization, Single Instance Storage (SIS), and index-based search.

Storage Server R2 also provides filters for searching many standard file formats, such as .zip, AutoCAD, XML, MP3, and .pdf, and all Microsoft Office file formats.

  Windows Home Server

Windows Home Server is an operating system from Microsoft based on Windows Server 2003 SP2.  Windows Home Server is intended to be a solution for homes with multiple connected PCs to offer file sharing, automated backups, and remote access.


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