what’s new of exchange 2010
1. One of the first things is that the mailbox replication has changed dramatically, and personally I’m pretty excited about this. Microsoft has taken the Cluster Continuous Replication (CCR) and the Standby Continuous Replication (SCR) features and combined these to create a new feature called “database copies”.
2. One of the issues with CCR is the added complexity by the Windows Clustering and to lighten up the administrator’s life Exchange Server 2010 no longer needs a fully fledged Windows Cluster Server. Under the hood it uses some parts of Windows Clustering but that’s completely taken care of by Exchange Server 2010 itself.
3. To create highly available mailbox environment, multiple mailbox server can be configured in a “Database Availability Group” or DAG. In a DAG, multiple copies of a mailbox database exist. If one database fails another server automatically takes over, a user will not notice anything about this.
4. The concept of multiple databases in a Storage Group is removed in Exchange Server 2010. Also the name “Storage Group” isn’t used anymore in Exchange Server 2010. The database technology, which is still based on the Extensible Storage Engine, or ESE still uses the “mailbox database.edb” format as well as the log files (E0000000001.log etc) and the checkpoint file.
5. Local Continuous Replication and Standby Continuous Replication have been removed in Exchange Server 2010.
6. The database schema has changed, or flattened. The database schema is less complex than in previous version of Exchange server making it possible to reduce the disk I/O compared to Exchange Server 2007 with up to 50% (although we cannot confirm this by individual testing).
7. Public Folders are still there and Public Folders are still fully supported in Exchange Server 2010. Even better, there are improvements in Public Folders like enhanced reporting possibilities.
8. In Exchange Server 2007 and earlier, MAPI clients connected directly to the mailbox server, while all other clients connected to the Client Access Server. In Exchange Server 2010 MAPI clients now connect to the Client Access Server. No clients connect directly to the Mailbox Server in Exchange Server 2010.
9. Enhanced move-mailbox functionality.
10. A very enhanced version of Outlook Web Access. One of the design goals was to create a cross browser experience for users. Users on an Apple Macbook with a Safari browser get the same user experience as users using a Windows Vista client with Internet Explorer! A lot of features that were already available in Outlook 2007 are now also available in Outlook Live. Webmail is getting better and better every release of Exchange server…
11. Exchange Server 2010 has enhanced disclaimers, which means you can create HTML formatted disclaimers, containing hyperlinks, p_w_picpaths and even Active Directory attributes!
12. Exchange Server 2010 runs on PowerShell V2 and Windows Remote Management, making it possible to administer remote Exchange Server 2010 servers.
