Is Netbackup Operations Manager a free componet or requires a license?

Assuming you're on a UNIX or Linux master server ....

This will tell you how many GB were backed up in total within a certain timeframe :
bpimagelist -d 07/20/2009 08:00:00 -e 07/21/2009 08:00:00 |grep IMAGE|awk '{tot+=$19}END{print tot/1024/1024}'

This will tell you how many GB were backed up via NDMP within a certain timeframe :
bpimagelist -d 07/20/2009 08:00:00 -e 07/21/2009 08:00:00 -pt NDMP |grep IMAGE|awk '{tot+=$19}END{print tot/1024/1024}'

Subtract the latter from the former to find the total number of non-NDMP GB backed up.

And yes, NOM is included with NBU 6.5

Just enter the start and end date ....

#!/bin/sh
echo "Enter Start date & time in mm/dd/yyy HH:MM:SS Format\n "
read START DATE
echo "Enter End Date & time in mm/dd/yyyy HH:MM:SS Format\n"
read END TIME
SERVERS=`/usr/openv/netbackup/bin/admincmd/bpimagelist -g -d "$START" "$DATE" -e "$END" "$TIME" -M <master Server> -l | grep -i image | cut -d " " -f2 | sort -u | wc -l`
sleep 10
DATA=`/usr/openv/netbackup/bin/admincmd/bpimagelist -g -d "$START" "$DATE" -e "$END" "$TIME" -M <master Server> -l | grep -i image | cut -d " " -f19 | awk '{sum +=$1/1024/1024/1024} END {print sum}'`
sleep 10
MEDIA=`/usr/openv/netbackup/bin/admincmd/bpimagelist -media -g -d "$START" "$DATE" -e "$END" "$TIME" -M <master Server> | cut -d " " -f1 | egrep -i "^[FH]|TP[0-9]" | sort -u | wc -l`
sleep 3
echo "\n\nNumber of Serveres Backup ="$SERVERS"\n\nAmount of Data Backup ="$DATA"Terabytes\n\nnNumber of Media Used="$MEDIA" "

Thanks guys I'll look into them both :)

With the bpimagelist command what governs how far back you go in time?

You can use bpimagelist to go back as far as there are valid images for the client in the catalog.

NOM is included for FREE in NetBackup.

Hmmm I need to do some further testing then as anything up to about a month is good and shows the correct number of backups over a night, past that I end up with very backups, but limited testing so far and once I started to get bad figures I stopped running the scripts.