| Networking Configuration - vSwitches and Port Groups with 2 Physical NICs |
When configuring networking on an ESX/ESXi server it is important that you plan and configure it correctly.
Doing so will ensure you get the best reliability, performance and security within your virtual network.
Depending on your requirements the
configuration will vary slightly. For example if network storage such
and iSCSI and NFS will be used the setup will need to plan for this.
I will explain the different setups for these needs.
The following setup is the best for a
server with 2 physical networks cards. As most servers typically come
with 2 onboard NICs this is a common initial configuration in test or
small setups.
To ensure the most reliable configuration it is best to use both physical network cards for one vSwitch.
This configuration has sacrificed performance for reliability.
Configuration for a server without network based IP storage:
Physical NIC Virtual Switch Port Group(s)
vmnic0 vSwitch0 Service Console + vMotion + VM Network
vmnic1 vSwitch0 Service Console + vMotion + VM Network
Configuration using network based IP storage:
Physical NIC Virtual Switch Port Group(s)
vmnic0 vSwitch0 Service Console + vMotion + VM Network + VMkernel (IP Storage)
vmnic1 vSwitch0 Service Console + vMotion + VM Network + VMkernel (IP Storage)
Alternativley the opposite could be done. To get the best performance configuration have two vSwitches and a NIC to each as follows.
This configuration has sacrificed reliability for performance.
Configuration for a server without network based IP storage:
Physical NIC Virtual Switch Port Group(s)
vmnic0 vSwitch0 Service Console + vMotion
vmnic1 vSwitch1 VM Network
Configuration using network based IP storage:
Physical NIC Virtual Switch Port Group(s)
vmnic0 vSwitch0 Service Console + vMotion + VMkernel (IP Storage)
vmnic1 vSwitch1 VM Network
Ideally VLANs should be used to seperate these networks.
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