Adding more bandwidth in between nodes

[Manny Vazquez]

I would like to create a secondary network in between my nodes to give them more bandwidth for inter-node communication. Something like in the image below.
In the image, the black links are what is now in place, I could do either the RED ones (my preferred) or the blue, which just adds traffic to the switch.

I know I can just assign another IP segment, but how do I make sure that the transactions in between nodes (like migrations, backups) go thru this new network connection and not thru the normal one.
Network 1 (black) is 172.21.82.0/24 (this is where all the VMs and nodes are)
Network 2 (either blue or red) I would make like 10.10.10.0/24 , but, how do I make it so the nodes see each other over THIS one and not over the other one.?

 

[wolfgang]

Hi,

back up goes always over the network where the network storage target is.
migration you can configure in the datacenter.cfg
see man datacenter.cfg

 

[Manny Vazquez]

Hi,

back up goes always over the network where the network storage target is.

thanks, now that you say it, it is quite obvious

migration you can configure in the datacenter.cfg

Thanks, so if my secondary netowrk IP on host 2 is 10.10.10.2, I should add to datacenter.cfg the line
network=10.10.10.2/24 and the host 2 will know... must add
network=10.10.10.3/24 to that file on host 3?

Thanks

 

[wolfgang]

Datacenter you add the network like this
migration: type=secure , network=10.10.10.0/24

 

[Manny Vazquez]

Thanks.
One last question, would this work better over the BLUE model or over the RED model (image above)?

 

[wolfgang]

Works on both