OV doesn't start on boot so you'll have to do it by hand. You don't need root priviledges, use sudo.
On HP-UX 11 do something like:
# cleartool setview mp11 # . /opt/OV/bin/ov.envvars.sh # /opt/OV/bin/ovstart -c
On HP-UX 10 do something like:
# cleartool setview mpolonen # . /opt/OV/bin/ov.envvars.sh # /opt/OV/bin/ovstart -c