Better use of the 10GbE with vSphere Enterprise

We are about to deploy a new SAN connected with 10 GbE (iSCSI and NFS). Servers (5 in total, with about 50 VMs) all have 2x10GbE and 2x1GbE ports. Everything will be connected with a pair of Nexus 3000 10GbE switches. We read a lot of information how the best way to use the 10 GB connections. There are many conflicting views on how best to configure the networking, but most of the documentation recommends setting up distributed vSwitches. Unfortunately we lack more Enterprise it is not an option. We * could * updated, but at this point, I want to avoid this path.

With that support is in place, what is the best way to make use of 10 GB using standard vSwitches? I'm fine with using the ports of 1 GB if necessary, but it would be great if we could put everything on all 10 GB ports.

Recommendations and suggestions greatly appreciated!

As you've probably discovered already your best bet is to use Enterprise Plus licenses so that you can take advantage of the i/o control network to divide the 10Gb network cards and share them with iSCSI, NFS, vMotion, virtual machine and management.

Given your other options I would create two switches.  A management and vMotion with connections rising 2x1GB.  Configure this active / standby with active management on a NETWORK card and watch over the other and vice versa for vMotion that each 1 GB NIC is dedicated to a single task, but always the possibility to switch on it are required.

With the second switch add the two 10 GB uplinks and create two vmkernel iSCSI ports.  Set each uplink active on a portgroup and unused on the other and then activate the iSCSI connection.  See the picture below for an example.

Now create additional exchanges for traffic of NFS and virutal machine and assign them to the same switch.  Set up NFS as active / standby and the VM to route based on the port id.  Don't forget to give a different ID for each type of traffic to VLAN.

If you are familiar with QoS on Cisco you can prioritize traffic iSCSI, NFS, and virtual machine accordingly to ensure that the iSCSI traffic is always available.  You can take this a little more away by setting transmit rate limits on portgroup VM traffic so that he is not eat all 10 GB of the uplink.

I suggest you take a reading of this document if you are not familiar with the iSCSI configuration.

https://www.VMware.com/files/PDF/iSCSI_design_deploy.PDF

Tags: VMware

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