To quickly confirm if your processes are running upon logging into your various servers you can update the .bash_profile. For example, if you installed as the root user you can update the /root/.bash_profile with the following commands:
DC
/etc/init.d/dcmd status
DA
/etc/init.d/dadaemon status
CAPC
/etc/init.d/caperfcenter_console status
/etc/init.d/caperfcenter_devicemanager status
/etc/init.d/caperfcenter_eventmanager status
/etc/init.d/caperfcenter_sso status
DR
su dradmin -c "/opt/vertica/bin/adminTools -t view_cluster"
By doing this, the above command will be executed when logging in to your servers and you will immediately know if the component processes are running or not