If you get unknown errno 107 when you do a “gluster peer probe othermachine” then you have got a network problem.
Check the following:
- check the output of iptables-save for any firewall rules that might be interfering, on both machines
- make sure glusterd is running on both machines
- make sure you can actually ping the other machine
- both machines need to have a valid gateway set up
It is probably one of those. In any case, it is a network problem.