As an IT guy I have the strong belief that engineers understand graphics and charts much better than bullet points and text, so the first thing I will do is to paste the following diagram
At first sight you can recognize from left to right that there are 6 Physical Networks cards used in this example. You can also recognize that two of these adapter on the left are 1GB adapters and the other four green adapters are 10GB adapters. These basic considerations are really important because they will dictate how your Hyper-V Cluster nodes will perform.
On top of the 6 Physical Network cards you can see that some of them are using RSS and some of them are using dVMQ. Here is where things start to become interesting because you might wonder why I don’t suggest to create a big 4 NIC team with the 10GB adapters and dismiss or disable the 1GB adapters. At the end of the day, 40GB should be more than enough right?
Well, as a PFE, I like stability, high availability and robustness in my Hyper-V environments, but I also like to separate things that have different purposes. Using the approach from the picture above will give me the following benefits:
So, as you can see, this setup has a lot of benefits and best practice recommendations. It is not bad at all and maybe there are other benefits that I’ve forgotten to mention… but where are the constraints or limitations here with this Non-Converged Network Architecture? Here are some of them:
Maybe I didn’t gave you any new information regarding this configuration, but at least we can see that this Architecture is still a good choice for several reasons. If you have the hardware available, you certainly have the knowledge to use this option.
Let’s see you again in my next post where I will talk about Converged Networks Managed by SCVMM and Powershell
The series will contain these post:
1. Hyper-V 2012 R2 Network Architectures Series (Part 1 of 7 ) – Introduction (This Post)
2. Hyper-V 2012 R2 Network Architectures Series (Part 2 of 7) - Non-Converged Networks, the classical but robust approach
3. Hyper-V 2012 R2 Network Architectures Series (Part 3 of 7) – Converged Networks Managed by SCVMM and Powershell
4. Hyper-V 2012 R2 Network Architectures Series (Part 4 of 7 ) – Converged Networks using Static Backend QoS
5. Hyper-V 2012 R2 Network Architectures Series (Part 5 of 7) – Converged Networks using Dynamic QoS
6. Hyper-V 2012 R2 Network Architectures Series (Part 6 of 7 ) – Converged Network using CNAs
7. Hyper-V 2012 R2 Network Architectures Series (Part 7 of 7 ) – Conclusions and Summary
8. Hyper-V 2012 R2 Network Architectures (Part 8 of 7) – Bonus
How would you recommend the network setup if there were 4 1Gb NICs and 2 10Gb NICs in each host?
It looks like you have *not* included any reference for NICs dedicated to storage, is this correct? There is a CSV dedicated NIC, but this isn't necessarily that same NIC (or more) that is used to speak to the storage directly. (I believe your CSV network
corresponds to the "Cluster traffic" network as documented in the TechNet article "Network Recommendations for a Hyper-V Cluster in Windows Server 2012"