We have a SQL Always-on cluster consisting of two nodes. They are both virtual machines running Windows 2012 and SQL Server 2012 on VMWare.
I want to change the adapter type from E1000 (Windows 2012 suffers from instability when using this type of virtual NIC) to VMXNET3 on one of the servers. The server in question is usually the secondary node in the cluster, which is used in case of failover. Hopefully this makes what I want to do easier? This would be achieved by removing the network adapter and adding another of the correct type. The same network details (IP address etc) will be applied to the new virtual NIC.
I am unsure of the best way to go about doing this and ensuring that every works as it did previously after the change. Should I remove the server from the cluster temporarily (how is this achieved?) for example?
Any thoughts or advice would be most welcome.
Kind regards