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bilelmsekni / OpenStack-Grizzly-Install-Guide

A full install guide for OpenStack Grizzly
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About the 3 nics in network node #140

Closed mezzos closed 10 years ago

mezzos commented 10 years ago

Hello, I was wondering why you use 3 nics in network node and not 2? What will happen if you add more compute nodes? You will need more interfaces?

It will be nice to have a 2 nics grizzly installation

Thanks!

mtasic85 commented 10 years ago

I use 3 NICs for network node because first 2 NICs are used for Management and Configuration, and 3rd one for Internet connection to outside world.

I have 2 cabinets with 1 controller node, 1 network node, and 20 compute nodes. Controller node has 2 NICs, network node 3 NICs, and each compute node with 2 NICs. So there is no need for additional interface for extra compute nodes.

However, I had to dig into configuration files and logs to make nova and cinder work correctly. Currently, OVS_MutliNode tutorial does not cover this.