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Hyper-V Planning

Posted on 2011-04-25
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Last Modified: 2012-05-11
Will a single Dell R710 /w dual Intel 6 core CPU and 64 GB RAM with boot to SAN (Compellent) run the 3 following virtual servers? Exchange 2010 (120 mailboxes with 400GB total database size) and 2 servers running SQL 2008 R2? Each SQL server has a single database of less than 12 GB. I have 2 of the Dell R 710 servers and would like either load balancing and/or failover but can't find any definite planning information as to what I consider a small implementation. Both of the R710 servers will have Windows 2008 R2 SP1 Enterprise as the host.
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Question by:HELFIT
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Svet Paperov earned 1000 total points
ID: 35464170
The only issue you could have is the disk throughput if the SAN is not fast enough.

With 2 servers the best high availability design is Windows cluster that you can implement with Windows Server Enterprise. There is  lot of info about Hyper-V Clustering on Internert but you can start from here http://technet.microsoft.com/en-us/library/cc732181(v=ws.10).aspx
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by:HELFIT
ID: 35466492
Thank you for the link. Each of these servers exist now, physically, just older versions. Exchange 2007 and the 2 SQL servers are SQL 2000 SP4. We measured IOPs for 5 days on the old servers then planned the SAN disks to have a minimum IOPs (in theory) equal to the maximum IOPs of the 3 old servers combined. I'm hoping that's what you meant by disk throughput.
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by:Svet Paperov
ID: 35467685
Yes, that was I meant.

What SAN you are implementing, iSCSI?
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by:HELFIT
ID: 35467950
Yes to iSCSI.
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by:Svet Paperov
ID: 35468168
Good choice. If you’re purchasing the SAN from Dell with Gold Support, they should be able to help you with the design and the implementation of the cluster.

I don’t know your design, but recently, I was helping a guy here that had a R710 directly connected to an MD3200i without switches and he had poor iSCSI performance. Finally, it was the size of the Jumbo frame – maximum accepted size was around 6000, instead of 9000.
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by:HELFIT
ID: 35468242
I'll keep the frame size in mind. Our SAN was purchased from a Compellent reseller about a week before Dell announced they were buying them. Thanks for your assistance.
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