Before installing DPM 2007, ensure that you meet all the requirements:

· Supported Operating Systems: Windows Server 2003 R2 with SP2.Windows Storage Server 2003 with SP2.Windows Storage Server 2003 R2 with SP2.

· Knowledge Base article 940349, "Availability of a Volume Shadow Copy Service (VSS) update rollup package for Windows Server 2003 to resolve some VSS snapshot issues".

· Windows PowerShell 1.0

· Single Instance Storage (SIS) on Windows Server 2008 operating system (Pre-release version). This release of DPM 2007 does not support a Windows Server 2008 installation in a production environment.

· Windows Deployment Services (WDS) on Windows Server 2003 Service Pack 2 (SP2) servers
-OR-
SIS on Windows Storage Server 2003 R2.

· Microsoft .NET Framework 2.0.

· Internet Information Services (IIS) 6.0 for Windows Server 2003.

· IIS 7.0 for Windows Server 2008 (Pre-Release version).

· Microsoft SQL Server 2005 Workstation components.

· Microsoft SQL Server 2005 with Reporting Services (DPM 2007 contains the Standard Edition of SQL Server 2005). If you use a remote instance of SQL Server, it cannot be on a computer that is running as a domain controller. The computer running SQL Server and the DPM server must be located in the same domain.

· Microsoft SQL Server 2005 Service Pack 2.

Each Exchange Server that DPM 2007 protects must meet the following requirements:

· Protected volumes must be formatted as NTFS file system. The volume must be at least 1 GB and requires minimum of 300MB free space for DPM to protect it.

· Before you install protection agents on the computers you are going to protect, you must apply the hotfix described in Knowledge Base article 940349, "Availability of a Volume Shadow Copy Service (VSS) update rollup package for Windows Server 2003 to resolve some VSS snapshot issues".

· Exchange Server 2003 with SP2 or Exchange Server 2007 (supports Standard and Enterprise editions).

· Before you can protect Exchange Server 2007 data in a Clustered Continuous Replication (CCR) configuration, you must install the hotfix described in Knowledge Base article 940006, "Description of Update Rollup 4 for Exchange 2007".

Above is part of the article in www.msexchange.org

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