Removal from Exchange Server 2010 compared to Exchange 2007

1. In Exchange Server 2007 we had LCR, CCR and SCR - three diff erent versions of replication, all with
their own management interfaces. All three are no longer available in Exchange Server 2010.

2. Windows Server Fail-over Clustering has been removed in Exchange Server 2010. Although seriously improved in Windows Server 2008, a lot of Exchange Administrators still found the fail-over clustering complex and diffi cult to manage. As a result, it was still prone to error and a potential source of all kinds of problems.

3. Storage Groups are no longer available in Exchange Server 2010. The concepts of a database,log files and a checkpoint file are still there, but now it is just called a database. It’s like CCR in Exchange Server 2007, where you could only have one database per Storage Group.

4. The Single Instance Storage (SIS) is no longer available. This means that when you send a 1 MB message to 100 recipients, the database will potentially grow by 100 MB. This will surely have an impact on the storage requirements in terms of space, but the performance improvements on the Database are really great.