Timeline: Aventis' Exchange Server 2000 Global Migration
Computerworld -
Fall 1999
Hoechst Marion Roussel Inc. and Rhone-Poulenc SA merge; Aventis formed.
Combined companies had:
- 55,000 users in 50 countries.
- Nine e-mail systems running on 181 Exchange 5.5 servers (40 routing servers).
- One GroupWise e-mail server.
- A Windows NT backbone with 11 account domains, 150 resource domains, two Domain Name System servers and two Windows Internet Naming Service servers.
- A 22-server test lab constructed by the messaging group replicating six real-world domains; Windows 2000 and Exchange 2000 testing begins.
February/March 2000
- Active Directory infrastructure established through in-place upgrades of domain controllers to Windows 2000.
April 2000
- Last account domains migrated to Active Directory.
- Backbone upgraded to Windows 2000.
- Exchange Server 2000 migration began at Frankfurt and Kansas City, Mo., pilot sites.
- Exchange Conferencing Server set up in Frankfurt in pilot.
- Backbone routers reconfigured to support multicast.
May 2000
- Active Directory Connectors installed and connection agreements started to be established with Exchange 5.5 servers at each location.
- Kansas City pilot site went live with first Exchange 2000 deployment; 4,000 mailboxes on 11 servers consolidated to four Exchange 2000 servers.
January 2001
- WAN routers began to be reconfigured to support multicast for videoconferencing.
April 2001
- Outlook Web Access servers rolled out in Frankfurt.
November 2001
- Tokyo cut over 3,500 mailboxes.
First quarter 2002
- All WAN routers reconfigured for multicast.
- SecurID authentication added for Outlook Web Access users.
- Frankfurt cut over 8,000 mailboxes.
- Conferencing server rollout completed; all routers enabled for multicast.
May 2002
- Croix de Berny, France, the largest site, cut over 13,000 mailboxes.
December 2002
- U.S. headquarters in Bridgewater, N.J., migrated 6,000 mailboxes to Exchange 2000.
Spring 2003
- When the last sites cut over, Aventis will have consolidated to 179 Exchange Servers (139 user servers and 40 connector servers), despite adding 40 new sites. It will have a single account domain, pharma.aventis.com, and approximately 130 domain controllers worldwide.
Networking
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