Instructions for configuring a cron job that monitors the /data disk space on EventBulders and publishes it to Grafana.

Check out the latest sbndaq project code into your MRB area, run a build, followed by the mrb -i; mrbslp command that installs database tools into the $SBNDAQ_DIR/configDB_tools directory.
Review $HOME/.artdaq_grafana.env or create a new one if required. Ask Wes or Gennadiy to send you a working copy of .artdaq_grafana.env.
Setup the sbndaq product from the $MRB_TOP/localProducts_* directory and confirm that the disk_monitor.sh script will execute from $MRB_TOP/localProducts_* by running the which disk_monitor.sh command.

ups list -aK+ sbndaq -z $MRB_TOP/localProducts_*
#$ "sbndaq" "v1_00_01" "Linux64bit+3.10-2.17" "e20:prof:s112" ""
setup "sbndaq" "v1_00_01" -q "e20:prof:s112"
which disk_monitor.sh
#$ ~/DAQ_DevAreas/DAQ_03Dec2021PRD/localProducts_sbndaq_v1_00_01_e20_prof_s112/sbndaq/v1_00_01/configDB_tools/disk_monitor.sh

Copy disk_monitor* into ${HOME}/cronjobs/.

cp $(dirname $(which disk_monitor.sh))/disk_monitor* ${HOME}/cronjobs/ && chmod a+rx ${HOME}/cronjobs/disk_monitor.sh

Add or update the crontab entry for disk_monitor.sh with the crontab -e command (uses vi editor).

*/5 * * * *  ~/cronjobs/disk_monitor.sh >> /daq/log/grafana/disk_monitor.log 2>&1

Wait 6 mins and verify the cronjob runs by running the tail -20 /daq/log/grafana/disk_monitor.log command.