Re: [Users] Choosing which network to run VM migration on ovirt 3.1
On Mon, Jan 07, 2013 at 03:23:41PM +0200, Yuval M wrote:
after a bit of playing with the system, I found a nice workaround:
I added a host route on each host:
# route add -host 10.100.101.101 gw 172.22.22.1
and on the other one:
# route add -host 10.100.101.100 gw 172.22.22.2
where 10.100.101/24 is the slow network and 172.22.22/24 is the fast
network.
migration now works through the fast link, with nothing changed in ovirt's
configuration.
Nice hack! But it means that all IP traffic between these two hosts is
routed over Infiniband. That's a Good Thing in your use case, but may
confuse other setups.
I would like to suggest a brand new "migration network" role in
http://www.ovirt.org/Features/Migration_Network to provide
managenet/migration network separation.