Our customer is using two 10G ports in a bond on his 44K cluster but needs to migrate to a bond of two 40G ports. The 44K is configured as a VSX gateway, so the 10G bond is used in many virtual systems.
What is the best procedure to migrate to a 40G bond with as little impact as possible? I have several options.
Adding the 40G ports to te excisting bond and removing the 10G ports.
I know ports in a bond must be of the same type to avoid problems, but during a maintenance window it is allowed to have some impact. And the time two different type of ports are in the bond is very short.
Creating a new bond and use the 'vsx_util change_interfaces' command to change the interfaces on the virtual system.
But this requires a reboot of the VSX gateway which means a reboot of all SGM's and a total outage. Rebooting the SGM's one by one seems tricky because I do not know what happens when a SGM pulls the configuration from the SMO during boot.
Create a new bond and change the interfaces per virtual system in SmartConsole.
This is a lot of work because there are many virtual systems and some of them have many VLAN interfaces. And I believe it is best to first remove the old interface, push VSX configuration and policy and then add the same interface on the other bond. Push VSX configuration and policy. And this will cause downtime also.
Anyone has done this before? Tips and tricks are welcome.