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Casey WeaverFlag for United States of America

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Creating a multi-chassis availability set with SCVMM

I would like to create an SCVMM 2012 availability set that takes in mind that the host servers are blades in the same chassis. So I've got 12 2012R2 blades, four in each of 3 blade chassis. I've been reading on creating an availability set so that SCVMM prevents certain VMs from sharing the same host. Is there any way to prevent them from sharing a group of hosts? For example, I have two web app servers (redundant to each other). I would prefer that out of blades 1-4, 5-8, and 9-12 that the two VMs are separated on say 1-4 and 9-12. The goal is to reduce downtime in the case of a complete chassis or interconnect failure. If SCVMM just separates by blade, then the VMs may be on blades 1 and 2, and they'd both go down if there was a chassis failure. I don't want to create an ownership so that the VM isn't allowed to start on certain blades if that's avoidable, because then what happens if we need to take a chassis down and the VM has been banned from all the blades except for one chassis? Hoping someone can help me with a solution that I'm missing.
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Member_2_231077

What blade enclosures do you have and what I/O modules?
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Cisco 5100 chassis with FEX 2304. B200 M4 blades with VIC 1240 I/O.
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Casey Weaver
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