Live Migration – Hyper-V How Many NICs do I need.

I get asked this question a lot by customers and IT Pros alike  I usually answer with well it depends.

And it does depend on what you are doing with your Hyper-V VMs and there storage.

I found a nice link on Microsoft today which give some supported examples for NIC configuration.

 

Host configuration

Virtual machine access

Management

Cluster and Cluster Shared Volumes

Live migration

Comments

4 network adapters with 1 Gbps

Virtual network adapter 1

Network adapter 2

Network adapter 3

Network adapter 4

Recommended

3 network adapters with 1 Gbps; 2 adapters are teamed for link aggregation (private)

Virtual network adapter 1

Virtual network adapter 1 with bandwidth capped at 10%

Network adapter 2 (teamed)

Network adapter 2 with bandwidth capped at 40% (teamed)

Supported

3 network adapters with 1 Gbps

Virtual network adapter 1

Virtual network adapter 1 with bandwidth capped at 10%

Network adapter 2

Network adapter 3

Supported

2 network adapters with 10 Gbps

Virtual network adapter 1

Virtual network adapter 1 with bandwidth capped at 1%

Network adapter 2

Network adapter 2 with bandwidth capped at 50%

Supported*

2 network adapters with 10 Gbps; 1 network adapter with 1 Gbps

Virtual network adapter 1 (10 Gbps)

Network adapter 2 (1 Gbps)

Network adapter 3 (10 Gbps)

Network adapter 2 with bandwidth capped at 50%

Supported

2 network adapters with 10 Gbps; 2 network adapters with 1 Gbps

Virtual network adapter 1 (10 Gbps)

Network adapter 2 (1 Gbps)

Network adapter 3 (1 Gbps)

Network adapter 4 (10 Gbps)

Supported

3 network adapters with 1 Gbps; 2 adapters are teamed for link aggregation (public)

Virtual network adapter 1

Virtual network adapter 1 with bandwidth capped at 5%

Network adapter 2 (teamed)

Network adapter 2 with bandwidth capped at 90% (teamed)

Not recommended

2 network adapters with 1 Gbps

Virtual network adapter 1

Virtual network adapter 1 with bandwidth capped at 10%

Network adapter 2

Network adapter 2 with bandwidth capped at 90%

Not recommended

1 network adapter with 10 Gbps; 1 network adapter with 1 Gbps

Virtual network adapter 1 (10 Gbps)

Virtual network adapter 1 with bandwidth capped at 10%

Network adapter 2 (1 Gbps)

Network adapter 2 with bandwidth capped at 90%

Not recommended

 

http://technet.microsoft.com/en-us/library/ff428137(WS.10).aspx

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