Hi TMADOCTHOMAS,
This command works like a charm for me, so Probably you don't need worry about it, "setup -a" command will not run any setup command again, it will just change admin host IP.
fas3170>
vfiler run fas3170_vfiler2 setup -a 192.168.150.250
2.). Confirm “rdfile /vol/fas6080a_vfiler1_root/etc/hosts.equiv” and “rdfile
/vol/fas6080a_vfiler1_root/etc/exports”