121 you want to perform. These configurations are normally set when you perform a manual Exchange 2003 installation on one of your servers. Before You Begin You can run unattended setup for the following procedures: Installing the second to nth Exchange 2003 server in your organization. Installing Exchange 2003 System Management Tools. Running DomainPrep. You cannot run unattended setup for the following procedures: Installing the first Exchange Server 2003 server in your organization. Installing Exchange Server 2003 in a Windows server cluster. Installing Exchange Server 2003 in a mixed-mode environment (for example, Exchange 5.5 and Exchange 2003). 122 Performing any maintenance tasks (for example, adding or removing programs, re-installing Exchange, or upgrading from Exchange 2000). Procedure To use an answer file for unattended Exchange setup 1. On a server to which you want to install Exchange 2003 in unattended mode, insert the Exchange CD into your CD-ROM drive. 2. From a command prompt, type E:\setup\i386\setup /unattendfile D:\myanswerfile.ini, where E is your CD-ROM drive, D is your system drive, and myanswerfile.ini represents the name of the answer file. For More Information For detailed steps about how to create an answer file, see How to Create an Answer File for Running Unattended Exchange Setup. For more information about unattended setup, see Microsoft Knowledge Base article 312363, "How to use the Exchange 2000 and Exchange 2003 Installation Wizard to generate a Setup.ini file for an unattended installation," (http://go.microsoft.com/fwlink/?linkid=3052&kbid=312363). 123 How to Convert from Mixed Mode to Native Mode in Exchange An organization that is running in mixed mode can accommodate all versions of Exchange Server. An organization that is running in native mode can contain only Exchange 2000 Server or later computers; new Exchange Server 5.5 (or earlier) computers cannot be introduced into the organization. By default, Exchange 2000 Server and Exchange Server 2003 are installed in mixed mode. You can convert an Exchange organization to native mode after all of the servers are upgraded to Exchange 2000 or later, and earlier release restrictions no longer apply. You cannot switch to native mode until you either upgrade or decommission Exchange Server 5.5 (or earlier) computers. The following are some of the features of Exchange native mode: Routing groups can consist of servers from multiple administrative groups. Ability to move servers between routing groups. Simple Mail Transfer Protocol (SMTP) is the default routing protocol. 124 Before You Begin Note: Before you can convert an Exchange organization from mixed mode to native mode, all of the computers in the organization must be running Exchange 2000 or later. Important: After converting the Exchange organization to native mode, you cannot change back to mixed mode. This is a one-time conversion, and you must fully understand the results before you proceed. Procedure To convert from mixed mode to native mode in Exchange 1. Open Exchange System Manager. 2. In the console tree, right-click the organization that you want to switch to native mode, and then click Properties. 125 3. In <Organization Name> Properties, under Change operation mode, click Change Mode. 4. In the warning dialog box, click Yes if you are sure that you want to permanently switch to native mode. Click Apply to accept your new Exchange mode. For More Information For more information about mixed mode and native mode for Exchange Server, see the following Microsoft Knowledge Base articles: 270143, "XADM: Mixed Mode vs. Native Mode"(http://go.microsoft.com/fwlink/?linkid=3052&kbid=270143) 327779, "How To Convert from Mixed Mode to Native Mode in Exchange"(http://go.microsoft.com/fwlink/?linkid=3052&kbid=327779) 272314, "XADM: Preparing a Mixed Mode Organization for Conversion to Native Mode"(http://go.microsoft.com/fwlink/?linkid=3052&kbid=272314) 126 How to Restart the Microsoft Exchange Information Store Service The core data storage repository for Microsoft Exchange Server 2003 is the Microsoft Exchange Information Store service, which contains both mailbox store and public folder store data. The Microsoft Exchange Information Store service uses a database engine called Extensible Storage Engine (ESE), which is a transaction-based database technology. In some troubleshooting instances or when moving from mixed to native mode, you may need to restart the Microsoft Exchange Information Store service. Procedure To restart the Microsoft Exchange Information Store service 1. On the Start menu, click Run, type services.msc, and then click OK. 2. In the Results pane, find the Microsoft Exchange Information Store service. 127 3. Right-click the service, and then click Restart. Upgrading from Exchange 2000 Server to Exchange Server 2003 This topic provides instructions for upgrading your organization from Microsoft® Exchange 2000 Server to Exchange Server 2003. Specifically, this topic will: Provide you with the requirements necessary to upgrade from Exchange 2000 Server. Provide you with information about running Exchange Server 2003 Deployment Tools. Provide you with information about improvements in Exchange Server 2003 Setup. Show you how to run ForestPrep. Show you how to run DomainPrep. 128 Show you how to run Exchange Setup to upgrade your organization. Show you the Exchange 2000 Server tuning parameters you must remove after performing the upgrade. Procedures for Upgrading from Exchange 2000 Server to Exchange Server 2003 After ensuring that your organization meets the necessary prerequisites, the procedures referenced in this topic guide you through the deployment process. This process includes upgrading your Microsoft Active Directory® directory service forest to the Exchange 2003 schema, and then upgrading your Exchange 2000 servers to Exchange Server 2003. Table 1 lists the required permissions or roles for the procedures referenced in this topic. 129 Table 1 Procedures referenced in this topic and corresponding permissions Procedure Required permissions or roles Enable Windows® 2000 Server or Windows Server™ 2003 services See Windows 2000 or Windows Server 2003 Help Run ForestPrep on a domain controller (updates the Active Directory schema) Enterprise Administrator Schema Administrator Domain Administrator Local Machine Administrator Run DomainPrep Domain Administrator Local Machine Administrator 130 Procedure Required permissions or roles Remove Mobile Information Server Exchange 2000 Event Source Microsoft Mobility Administrator Local Machine Administrator Upgrade to Exchange Server 2003 on an Exchange 2000 Server in a domain Exchange Full Administrator role applied at the organization level Local Machine Administrator Install Exchange Server 2003 on additional servers in the domain Exchange Full Administrator role applied at the administrative group level Local Machine Administrator For more information about managing and delegating permissions and user and group authorities, see the Exchange Server 2003 Administration Guide. . organization. Installing Exchange Server 2003 in a Windows server cluster. Installing Exchange Server 2003 in a mixed-mode environment (for example, Exchange 5.5 and Exchange 2003) . 122 . Information Server Exchange 2000 Event Source Microsoft Mobility Administrator Local Machine Administrator Upgrade to Exchange Server 2003 on an Exchange 2000 Server in a domain Exchange. organization from Microsoft Exchange 2000 Server to Exchange Server 2003. Specifically, this topic will: Provide you with the requirements necessary to upgrade from Exchange 2000 Server.