Pasos para migrar de MS Exchange 2003 a Exchange 2010

  1. Bring the Exchange organization to Exchange Native Mode.
  2. Upgrade all Exchange 2003 Servers to Exchange Server 2003 Service Pack 2.
  3. Bring the AD forest and domains to Windows Server 2003 Functional (or higher) levels.
  4. Upgrade at least one Global Catalog domain controller in each AD Site that will house Exchange Server to Windows Server 2003 SP2 or greater.
  5. Prepare a Windows Server 2008 (RTM or R2) x64 edition server for the first Exchange 2010 server.
  6. Install the AD LDIFDE tools on the new Exchange 2010 server (to upgrade the schema).
  7. Install any necessary prerequisites (WWW for CAS server role).
  8. Run setup on the Exchange 2010 server, upgrade the schema, and prepare the forest and domains. (Setup runs all in one step or separate at the command line.)
  9. Install CAS server role servers and configure per 2010 design. Validate functionality.
  10. Transfer OWA, ActiveSync, and Outlook Anywhere traffic to new CAS servers.
  11. Install Hub Transport role and configure per 2010 design.
  12. Transfer inbound and outbound mail traffic to the HT servers.
  13. Install Mailbox servers and configure Databases (DAG if needed).
  14. Create public folder replicas on Exchange 2010 servers using pfmigrate.wsf script, AddReplicatoPFRecursive.ps1,or Exchange 2010 Public Folder tool.
  15. Move mailboxes to Exchange Server 2010 using Move Mailbox Wizard or Powershell.
  16. Rehome the Offline Address Book (OAB) generation server to Exchange Server 2010.
  17. Rehome Public Folder Hierarchy on new Exchange Server 2010 Admin Group.
  18. Transfer all Public Folder Replicas to Exchange Server 2010 Public folder store(s).
  19. Delete Public and Private Information Stores from Exchange 2003 server(s).
  20. Delete Routing Group Connectors to Exchange Server 2003.
  21. Delete Recipient Update Service agreements using ADSIEdit.
  22. Uninstall all Exchange 2003 servers.


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