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Best Hyper-V Design

Posted on 2011-05-12
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I have duplicate Dell R710 servers, each with boot to SAN (no internal drives), running Windows 2008 R2 Enterprise with only Hyper-V SP1 role installed. Each server has dual 6 core Intel CPU and 64MB RAM. Have 3 virtual servers that I'll need built. They are all clean installs.

1. Windows 2008 R2 Enterprise running Exchange 2010
2. Windows 2008 R2 Enterprise running Document Mangement (OpenText eDocs) + SQL 2008 R2
3. Windows 2008 R2 Enterprise running Accounting software (Juris) + SQL 2008 R2

I've read the best practices, multiple white papers, Microsoft's planning software, etc. but can't seem to settle on a design I'm comfortable with. Do I run all 3 virtual servers on 1 box and use the other as fail over only? Or do I split the load, for example, Exchange on 1 box and the other 2 servers on the other box and still use fail over? I realize the Exchange portion requires a little more planning, and currently we have a 400GB database size across 130 mailboxes, running on a Windows 2003 Enterprise/Exchange 2007 dual dual core server with 24MB RAM. The SQL databases on the DM and accounting servers are both right around 10GB in size.  Any thoughts on a best design here?
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Question by:HELFIT
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kevinhsieh earned 1000 total points
ID: 35755247
A single server can easily handle your 3 VMs. It doesn't really matter which VMs you run on which host. You can also Live Migrate the VMs from host to host, so which host is running a particular VM is transient condition.

I hope you plan on adding more VMs to your cluster, because otherwise you way overbought on CPU (12 cores for 3 VMs, that's 4 cores per VM without any sharing). There's a performance penalty for SMP, so you should start your VMs with a single vCPU and add more vCPU only if you need them).
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by:HELFIT
ID: 35757716
I have 6 other various Windows 2003 servers that will get consolidated down into new VMs once these are in place. There will also be a few users who will get the VDI treatment. The 3 listed are my most critical. Thank you for your input.
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