Issues with availability of free/busy folders and offline address books (OAB) can occur if the first Exchange server in an administrative group is removed.
By default, the first server in an administrative group hosts the site folders for that administrative group, which include the free/busy folders and OAB, et al. Before removing the first administrative group, those folders will need to be rehomed to another server in the administrative group.
Other factors to consider:
- The server responsible for generating the Offline Address Book
- The server running the Recipient Update Service
- Moving the routing group master role
- Changing the bridgehead server for any connectors
- Creating or changing the appropriate DNS records in your external DNS zone(s) if the server being removed was responsible for inbound Internet email
- Microsoft Knowledge Base article 307917, How to remove the first Exchange 2000 server from the site.
- Microsoft Knowledge Base article 822931, How to remove the first Exchange Server 2003 computer from the administrative group.
BEST PRACTICES GUIDE: THE 10 MOST COMMON EXCHANGE SERVER ISSUES
Issue #1: Exchange Server storage sizing and location
Issue #2: SMTP virtual server and connector configuration
Issue #3: Exchange recipient policies and Recipient Update Service
Issue #4: Exchange Server messaging hygiene
Issue #5: Exchange Server and DNS
Issue #6: Front-end/back-end Exchange Server topology issues
Issue #7: Exchange Server information stores and mailbox sizes
Issue #8: Moving or removing Exchange servers
Issue #9: Exchange Server backups and disaster recovery
Issue #10: Exchange Server monitoring -- or lack thereof
ABOUT THE AUTHOR: Bharat Suneja, Microsoft Exchange MVP
Bharat Suneja is a Microsoft Certified Trainer (MCT), Exchange MVP, and Principal Exchange Architect for Zenprise, Inc., maker of real-time troubleshooting and diagnostics software for Exchange. Bharat Suneja has over 10 years of experience in IT, architecting and managing Exchange Server and Active Directory environments, ranging from small and mid-sized businesses and e-commerce companies to large ISPs and ASPs. An active writer and contributing editor for international IT publications such as PC Quest, Bharat was also a technical reviewer for Exchange Server 2003 24 Seven by Jim McBee. Visit Bharat Suneja's blog at www.exchangepedia.com/blog.