For a migration project on my customer site I developed a set of workflows to do vfiler migrate that I'd like to share. You will find a Start vfiler migrate workflow to setup the replication, a complete vfiler migrate for the cutover and a cleanup vfiler migrate to change several things afterwards. The cleanup is specific to my customer. However, there may be some useful stuff as well.
Additionally there's also a powershell script that executes workflows in a loop based on a csv file with the input parameters.
With this set we are migrating vfilers from systems that are about to be decommissioned to new systems. First we do the start vfiler migrate with the powershell script and the csv input. Now we plan for a cutover maintenance window. Then we cleanup the environment with the cleanup workflow.