There are quite a few subtests that are calling do_facet or do_nodes to the servers missing the remote MGS/MDS/OSS check:

remote_mgs_nodsh && skip "remote MGS with nodsh"
remote_mds_nodsh && skip "remote MDS with nodsh"
remote_ost_nodsh && skip "remote OST with nodsh"

We need to add the missing checks to the subtests so that CLIENTONLY mode can work properly.