root@devtnode:~# hazoneverify DB_zone_grp
VCS INFO V-16-38-5 DB_zone_grp has one zone resource
devtnode: Connection refused
VCS ERROR V-16-38-7 devtnode does not have devtzone configured
Hazoneverify uses rsh to connect to the node and if rsh is not configured properly the command will fail.
Verify outside of VCS that rsh commands work:
#rsh devtzone zoneadm list -c
If this command fails please work with OS vendor to resolve rsh error.