Hyper-V Cluster Node Expansion

Posted on 2010-03-30
Medium Priority
Last Modified: 2013-11-06
We currently have a 3 node Windows 2008 ENT x64 R2 cluster using a Cluster Shared Volume that resides on a FC SAN.  We are considering expanding the cluster.  The additional servers would reside in the same location/building as the other clustered Hyper-V nodes.  Would there be any advantage to creating a second Hyper-V cluster or would adding the additonal servers to the existing cluster be the best choice.

Thanks in Advance

Question by:PHFrench
LVL 23

Accepted Solution

jakethecatuk earned 1000 total points
ID: 29125950
Without knowing any more details, it's not easy to say whether you need another cluster or not.

The downside to have two, two node clusters will potentially compromise your high availability.  If you lose both nodes of a two node cluster - no cluster.  If you lose two nodes of a four node cluster, it will still limp along (very slowly though).

So the bottom line is, my advice would be to add the new server to your existing cluster as this will give you more available resources in your current cluster and provide a higher system availability.
LVL 15

Assisted Solution

msmamji earned 1000 total points
ID: 29126913
Since the advent of CSV, its always desirable to have multiple node hyper-V failover cluster rather then having several disparate clusters. In disparate clusters you can't use Live migration between different clusters and are bound to quick migration between clusters among other things.
I would vote for in adding another node and if you decide to do so. I would recommend these links

Author Comment

ID: 29216999
Thanks for the input!

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