The following are best practices from this chapter:
- Use DAGs to distribute multiple copies of all mailboxes to multiple locations, taking advantage of high availability and disaster recovery capabilities that are built in to Exchange Server 2013.
- Separate the Exchange Server log and database files onto separate physical volumes.
- Plan for a Windows Server 2003 forest functional level and at least one Windows Server 2003 SP2 or later domain controller in each site that will run Exchange Server.
- Integrate a backup strategy into Exchange Server design.
- Install at least two global catalog servers in the same site as any Exchange server.
- Keep the OS and Exchange Server up to date through service packs and software patches, either manually or via Windows Software Update Services.
- Keep the AD DS design simple, with a single forest and single domain, unless a specific need exists to create more complexity.
- Identify the client access methods that will be supported and match them with the appropriate Exchange Server 2013 technology.
- Monitor DNS functionality closely in the environment on the AD DS domain controllers.