Multiple network card of a single system connected to same network

You will have several interfaces on the same network... Should be fine.

Shouldn't be any problem.

So there will be no problem DNS / DHCP point of view? Which network card the host machine will use?

Usually this wont form any problem, unless you consider "broadcast" and spanning tree over your network. If both nics are connected to the same network etc it shouldnt form a problem, but still i would advice you to set up a networkbridge

c here : http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/hnw_understanding_bridge.mspx?mfr=true

Good Luck ;)

If you implement a bridge you will cause a loop if both network cards sit in the same vlan or network.

Dont do it in other words.

Your implementation of the virtual machines will work just fine. It is actually recommended for best performance to assign network cards to each virtual machine - if you have the hardware go for it.

The one thing to look out for is disk IO on the host machine.

Cheers

S

Thanks for your advice. What kind of disk and what configuration is best for hosting few virtual machine in a single host system. We want redundency too.

Just a point of clarity, you don’t NEED multiple physical network cards to run multiple virtual servers. When you add a NIC to your virtual server it creates a new virtual MAC address for it. The virtual NICs look like separate physical cards to rest of the network.

As far as the disk configuration goes. The virtual hard-drives are just files on the host file systems so as long as the host has some type of RAID, I like RAID5 with a hot spare, you should be fine.  

I know I don't need multiple physical network cards, but I want to use multiple cards for better performance