Hyper-V and Linux VM Network Card Issues

Question

I am facing the issue on the network card Please help me in this regards.

I have Windows Server 2012 on which Hyper-V is installed. We are maintaining the VM (Virtual Machine) on Hyper-V. I have got One VM with "Oracle Unbreakable Linux 6.5" on which my Oracle Production server is running. We have 3 Hyper V Servers with clustering. When I migrate my Oracle VM from one Host to another Host then "Oracle Unbreakable Linux" forgot the old Network card and pick up a new one. Because of this all the network services are down then I have to reconfigure the old network card and then start the production.

Please could any one tell me why Linux is behaving this, and what is the solution?

Answer 1

Have you checked Microsoft's best practices for running Linux on Hyper-V? In particular, you might want to look at using a static MAC address to prevent network loss after migraitions.

Linux virtual machines that will be deployed using failover clustering should be configured with a static media access control (MAC) address for each virtual network adapter. In some versions of Linux, the networking configuration may be lost after failover because a new MAC address is assigned to the virtual network adapter. To avoid losing the network configuration, ensure that each virtual network adapter has a static MAC address. You can configure the MAC address by editing the settings of the virtual machine in Hyper-V Manager or Failover Cluster Manager.