361 Upgrading an Exchange 2000 Server Cluster to Exchange Server 2003 Upgrading an Exchange 2000 Server cluster to Exchange Server 2003 requires that you upgrade each of the cluster nodes and all Exchange Virtual Servers to Exchange Server 2003. For detailed steps, see How to Upgrade an Exchange 2000 Cluster to Exchange Server 2003. Note: Before upgrading your Exchange 2000 cluster to Exchange Server 2003, you should familiarize yourself with the requirements necessary for upgrading a cluster node (Table 5) and upgrading an Exchange Virtual Server (Table 6). 362 Table 5 Requirements for upgrading a cluster node Area Requirements Permissions Account must be a member of a group that has the Exchange Full Administrator role applied at the administrative group level. Cluster resources No cluster resources can be running on the node you are upgrading, because Exchange Setup will need to recycle the Cluster service. One-node clusters are exempt. The MSDTC resource must be running on one of the nodes in the cluster. 363 Area Requirements Other Only servers running Exchange 2000 SP3 can be upgraded to Exchange Server 2003. If your servers are running previous versions of Exchange, you must first upgrade to Exchange 2000 SP3. You must upgrade your cluster nodes one at a time. The Cluster service must be initialized and running. If there are more than two nodes, the cluster must be active/passive. If there are two nodes or fewer, active/active is allowed. 364 Area Requirements If running Windows 2000 Windows 2000 SP4 is required. To obtain Windows 2000 SP4, go to the Windows 2000 Service Packs Web site (http://go.microsoft.com/fwlink/?Link Id=18353). 365 Table 6 Requirements for upgrading an Exchange Virtual Server Area Prerequisites Permissions If the Exchange Virtual Server is the first server to be upgraded in the organization or is the first server to be upgraded in the domain, the account must be a member of a group that has the Exchange Full Administrator role applied at the organization level. If the Exchange Virtual Server is not the first server to be upgraded in the organization or the first Exchange server to be upgraded in the domain, the account only needs to be a member of a group that has the Exchange Full Administrator role applied at the administrative group level. 366 Area Prerequisites Cluster resources The Network Name resource must be online. The Physical Disk resources must be online. The System Attendant resource must be offline. Other The version of Exchange on the computer running Cluster Administrator must be the same version as the node that owns the Exchange Virtual Server. You must upgrade your Exchange Virtual Servers one at a time. 367 Migrating an Exchange Server 5.5 Cluster to Exchange Server 2003 The procedures for upgrading your cluster nodes from Exchange Server 5.5 to Exchange 2000 Server are outside the scope of this document. For information about how to upgrade Exchange Server 5.5 servers to Exchange 2000 Server, see Microsoft Knowledge Base article 316886, "HOW TO: Migrate from Exchange Server 5.5 to Exchange 2000 Server" (http://go.microsoft.com/fwlink/?linkid=3052&kbid=316886). Upgrading Mixed Exchange 2000 Server and Exchange Server 5.5 Clusters To upgrade Exchange clusters that contain both Exchange 2000 Server and Exchange Server 5.5 nodes, use the procedures in "Upgrading an Exchange 2000 Server Cluster to Exchange Server 2003" earlier in this topic, in conjunction with the procedures listed in Migrating from Exchange Server 5.5 to Exchange Server 2003. For More Information For important information about upgrading your cluster to the latest version of Exchange Server 2003 service packs and security patches, see Post-Installation Steps for Exchange Server 2003. 368 For more information about building a Windows Server 2003-based cluster, see the Guide to Creating and Configuring a Server Cluster Under Windows Server 2003. For more information about building clustered Exchange Server 2003 solutions, see the following resources in the Windows Server System Reference Architecture: Introduction to Messaging Services Messaging Services Build Guide How to Configure the Private Network in an Exchange Cluster This topic explains how to configure the private network in an Exchange cluster. Procedure To configure the private network in an Exchange cluster 1. On a server running Windows 2000: In Control Panel, double-click Network and Dial-up Connections. In Network and Dial-up 369 Connections, right-click <Network Connection Name> (where Network Connection Name is the name of your private network connection), and then click Properties. - or - On a server running Windows Server 2003: In Control Panel, double- click Network Connections. In Network Connections, right-click <Network Connection Name> (where Network Connection Name is the name of your private network connection), and then click Properties. 2. On a server running Windows 2000: In <Network Connection Name> Properties, on the General tab, under Components chec ked are used by this connection, ensure that the Internet Protocol (TCP/IP) check box is selected. - or - On a server running Windows Server 2003: In <Network Connection Name> Properties, on the General tab, under This connection uses the following items, ensure that the Internet Protocol (TCP/IP) check box is selected. 370 3. Select Internet Protocol (TCP/IP), and then click Properties. 4. In Internet Protocol (TCP/IP) Properties, click Advanced. 5. In Advanced TCP/IP Settings, on the DNS tab, verify the following information: Under DNS server addresses, in order of use, ensure that no addresses are listed. Under Append these DNS suffixes (in order), ensure that there are no suffixes listed. Ensure that the Register this connection's address in DNS check box is cleared. 6. On the WINS tab, ensure that Disable NetBIOS over TCP/IP is selected. . Upgrading an Exchange 2000 Server Cluster to Exchange Server 2003 Upgrading an Exchange 2000 Server cluster to Exchange Server 2003 requires that you upgrade each of the cluster nodes and all Exchange. Virtual Servers to Exchange Server 2003. For detailed steps, see How to Upgrade an Exchange 2000 Cluster to Exchange Server 2003. Note: Before upgrading your Exchange 2000 cluster to Exchange Server. Exchange Server 5.5 servers to Exchange 2000 Server, see Microsoft Knowledge Base article 316886, "HOW TO: Migrate from Exchange Server 5.5 to Exchange 2000 Server& quot; (http://go .microsoft. com/fwlink/?linkid=3052&kbid=316886).