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<a href="http://social.technet.microsoft.com/Forums/en/exchange2010/thread/2bb112be-f2e1-4fe2-b9a9-ca91efea641a" rel="ugc nofollow">http://social.technet.microsoft.com/Forums/en/exchange2010/thread/2bb112be-f2e1-4fe2-b9a9-ca91efea641a</a>
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So it looks indeed Microsoft forgot to update the BPA for Exchange 2010 SP1. Which basically makes the BPA useless as one cannot trust the results.
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Per &nbsp;<a href="http://technet.microsoft.com/en-us/library/aa996719.aspx" rel="ugc">http://technet.microsoft.com/en-us/library/aa996719.aspx</a>, and related discussions you can deploy Exchange SP1 mailbox role with DAG on VM residing on a HA cluster node, as long as the Exchange VM does not participate in the failover cluster, but is configured as a standalone VM on that host.<br />
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When running the &quot;Best Practice Analyzer&quot; on such a configuration it complains about an unsupported VM configuration - Clustering. Based on the help information for the BPA it tests for &quot;cluster service started&quot; and &quot;Model Key = VM&quot; and then decides to complain.<br />
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Looks like the BPA is wrong and produces false information.<br />
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Does anybody have information about this apparent conflict?
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Per  http://technet.microsoft.com/en-us/library/aa996719.aspx, and related discussions you can deploy Exchange SP1 mailbox role with DAG on VM residing on a HA cluster node, as long as the Exchange VM does not participate in the failover cluster, but is configured as a standalone VM on that host.

When running the "Best Practice Analyzer" on such a configuration it complains about an unsupported VM configuration - Clustering. Based on the help information for the BPA it tests for "cluster service started" and "Model Key = VM" and then decides to complain.

Looks like the BPA is wrong and produces false information.

Does anybody have information about this apparent conflict?

http://social.technet.microsoft.com/Forums/en/exchange2010/thread/2bb112be-f2e1-4fe2-b9a9-ca91efea641a

So it looks indeed Microsoft forgot to update the BPA for Exchange 2010 SP1. Which basically makes the BPA useless as one cannot trust the results.

Exchange 2010 SP1 DAG on Hyper -V Best practice analyzer conflicting information

Per  http://technet.microsoft.com/en-us/library/aa996719.aspx, and related discussions you can deploy Exchange SP1 mailbox role with DAG on VM residing on a HA cluster node, as long as the Exchange VM does not participate in the failover cluster, but is configured as a standalone VM on that host.

When running the &quot;Best Practice Analyzer&quot; on such a configuration it complains about an unsupported VM configuration - Clustering. Based on the help information for the BPA it tests for &quot;cluster service started&quot; and &quot;Model Key = VM&quot; and then decides to complain.

Looks like the BPA is wrong and produces false information.

Does anybody have information about this apparent conflict?

Microsoft Virtual Server was a virtualization solution that facilitated the creation of virtual machines on the Windows XP, Windows Vista and Windows Server 2003 operating systems. Virtual machines are created and managed through a web-based interface that relies on Internet Information Services (IIS) or through a Windows client application tool called VMRCplus. Features included Linux guest operating system support, Virtual Disk Precompactor, symmetric multiprocessing (SMP), x64 host operating system support, the ability to mount virtual hard drives on the host machine and additional operating systems support, including Windows Vista, and a volume shadow copy writer.

Microsoft Virtual Server

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.