03-22-2012 08:58 AM
Dear All,
I have the configuration below in my main.cf file, but it is not working properly.
group Network2 (
1. Online the Group Network2. Both interfaces eth1 and eth7 are enabled. ifconfig command shows that both interfaces are up and running. Ports are blinking green.
2. Disconnect the network cable from interface eth1. The IP is failed over to interface eth7. However, the interface eth1 is disabled. ifconfig command shows that the interface is down.
3. Re-connect the network cable back into interface eth1. The interface is still down and port is NOT blinking.
4. Disconnect the network cable from interface eth7. Here, I would expect VCS to bring up the interface eth1 and fail back the IP. However, it is not happening. The interface eth1 is still remained down and not blinking at all.
What should I do in order to make the NIC failover and failback work properly? Appreciate if someone can shed some light.
I'm using Redhat Enterprise Linux (RHEL) 6.1 and VCS 5.1 SP1. Many thanks!
BR, Ryan
Solved! Go to Solution.
03-22-2012 10:08 AM
NIC and MultiNIC resources in VCS don't actually bring a physical interface up or down, they simply monitor its state. In the case of the MultiNIC resource, VCS will move IP addresses between interfaces, but still doesn't do anything else to the NIC iself. This is indicated by the Operations attribute in the resource description being set to None (and no, you can't change it).
So, something's going on in the NIC configuration where the interface is being marked down, and not being marked back up when the physical link is restored.
03-22-2012 10:08 AM
NIC and MultiNIC resources in VCS don't actually bring a physical interface up or down, they simply monitor its state. In the case of the MultiNIC resource, VCS will move IP addresses between interfaces, but still doesn't do anything else to the NIC iself. This is indicated by the Operations attribute in the resource description being set to None (and no, you can't change it).
So, something's going on in the NIC configuration where the interface is being marked down, and not being marked back up when the physical link is restored.