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This chapter is from the book

Choose Your Exchange 2007 Version

  • Solution: If you are using a Server 2008 environment and do not wish to add a Server 2003 machine to the mix, you cannot use the RTM version of Exchange because it will not install on 2008. However, the SP1 version has more features and will install on both 2003 and 2008 servers.

We assume you will probably look at the SP1 flavor of Exchange, so we focus the rest of this book on that version only. Ninety-five percent of the information and steps will still work fine with the RTM version, aside from some of the alterations to the features and GUI we mentioned previously with SP1.

That brings us to the Standard or Enterprise differences:

  • Standard Edition—Enables the creation of up to five storage groups and a maximum of five databases per Mailbox server role. In addition, there is a 16TB per database storage limit (same as the Enterprise edition) with support for Local Continuous Replication (LCR) and Standby Continuous Replication (SCR) only.
  • Enterprise Edition—Enables the creation of up to 50 storage groups with a maximum of 50 databases per Mailbox server role. In addition, there is a 16TB per database storage limit with support for all four flavors of high availability including LCR, SCR, Cluster Continuous Replication (CCR), and Single Copy Clusters (SCC). Keep in mind though that Server has different editions as well, and if you want to use clustering, you need clustering services, which lean toward the Enterprise Edition of Server.
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