Database Availability Group (DAG) in Exchange 2010

One of the new features of Exchange 2010 is DAG Database Availability Group. The Customer were i work now wants Exchange 2010 in a dag cluster because they have a datacenter for failback.
Because i going to implement Exchange 2010 at the customer i created a test setup.

Configuration:

Server 1 – HYPERVDC-01
OS: Microsoft Windows 2008 R2 Standard x64
IP: 192.168.150.90
Roles: Active Directory / Hyper-V

Server 2 – CHEK10-01
OS: Microsoft Windows 2008 R2 Standard x64
IP: 192.168.150.91
Roles: Exchange 2010 HT / CAS

Server 3 – CHEK10-02
OS: Microsoft Windows 2008 R2 Standard x64
IP: 192.168.150.92
Roles: Exchange 2010 HT / CAS

Server 4 – DAGEK10-01
OS: Microsoft Windows 2008 R2 Enterprise x64
IP: 192.168.150.93
Roles: Exchange 2010 MBX

Server 5 – DAGEK10-02
OS: Microsoft Windows 2008 R2 Enterprise x64
IP: 192.168.150.94
Roles: Exchange 2010 MBX

Creating the DAG

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Groupname: DAG01
Witness Server: CHKEK10-01 (Microsoft says use one of the CAS or Hub Servers. You cannot use a DAG Server! If you want use a non Exchange 2010 server you must at the Exchange Trusted Subsystem group at the local administrators group.
Witness Directory: C:\DAG01
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Add a MB server to a DAG

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Setting a IP address on a Database Availability Group

With the following command you can set the DAG Database Availability Group an IP address. Set-DatabaseAvailabilityGroup -Identity DAG01 -DatabaseAvailabilityGroupIpAddresses 192.168.150.96