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Jun232008

Windows Server 2008 Hyper-V Failover Clustering Options

There are many ways to implement Windows Server Failover Clustering with Hyper-V. I could actually find five unique methods to do it. Some of them will actually not give you a fully fault-tolerant solution, but most of them actually make sense in specific scenarios (even if only for demonstrations). In any case, just trying to understand and differentiate them will probably be a good exercise.

1 – Parent-based Failover Clustering with two physical servers

In this first scenario, probably the most common one, you implement Windows Server 2008 Failover Clustering at the Hyper-V Parent (Host) level. You will need some shared storage, like a Fibre-Channel or iSCSI SAN.

Diagram describing the scenario before a failure:  diagram describing the scenario after a failure

As you can see, this can survive the failure of one of the physical servers. In fact, if you have a redundant network and storage infrastructure (not shown above), you can have a truly highly available solution.

Additional details about this solution (including screenshots on how to configure it) are available at http://blogs.technet.com/josebda/archive/2008/04/14/snw-demo-windows-server-2008-core-hyper-v-and-failover-clustering-with-screenshots.aspx

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