Anyone done a 13.3.1 to 15LTS to 15 SP3 double hop online.  We have our LBP doing the upgrade, but are working on the planning logistics.  Since the 15LTS is just a necessary hop to get from 13.3.1 to 15 SP3, will the operator stations stay communicating for the couple hours we are on LTS and flashing controllers on the way to 15 SP3.  I am aware of the domain controller limitation that we won't be able to reboot a VM workstation during the interim.

We have all new machines and servers already loaded to 15 SP3 so the migration is controller,CIOC flashing and database migration, so going from 15LTS to SP3 is a virtual power down and a boot up on the new machines.

Looking for real world "we did this already"  Thanks...JWB