Helllo all.
We have recently upgraded one of our IBM Bladecenters to use 10g switch modules in the bladecenter connected to a Juniper 4550 10g switch on our LAN.
I am trying to build a new Hyper-V 2012 R2 host server utilizing the extra bandwidth, but im not sure exactly which way I should proceed. This host will ultimately be part of a cluster with several other hosts. I have 2 scenarios:
scenario 1:
I end up having a total of 8 "physical" NIC's in the OS thanks to the IBM virtual fabric
2x 5gb nics (used with MPIO for ISCSI to SAN for CSV)
4x 2.5 gb nics
2x 1gb nics (one is for a DMZ network connection, the other can possibly be used for Hyper-V management network)
Ideally I want to have the 2.5 gb nics teamed so I have redundancy, however, im not sure exactly what Hyper-V traffic I would route over each network team. Currently in our other hosts that are running 1g nics/teams we have big problems with ISCSI, VM traffic and Live migrations (guests time out during a live migration) bottlenecks so im trying to remedy that with the additional bandwidth and dedicating networks.
Scenario 2: 5 Nic's
2x 5g nic (iscsi for CSV)
1x 10g nic
2x 1g nic (management and DMZ)
In this scenario I guess I could use the 1 10g nic and carve it up in Hyper-v using VLAN's and QoS to achieve the same goal. I'm curious if there would be any benefits to doing it this way other then being able to carve it up using the vnics etc. We have never implemented Hyper-V in this fashion so I haven't seen it in a real world setting.
I know there is a million other factors to take into consideration, but im trying to get a picture on a high level of what others might do in a similar situation. I can find recommendations from MS and TechNet etc on the networks and what should have its own dedicated network etc, but another question I have that could help me is out of the Hyper-V networks (Vm, livemig, management, csv, heartbeat etc.) which networks would you dedicate the most bandwidth to? which would you absolutely have as its own network and which do you feel are safe to combine?
Thanks for any insight you can provide.