Help Graphing items from file

[kondoor]

I would like to be able to graph how many pages we print every day on all of our printers combined. I figured the easiest way to do this would be to do the following, please tell me if I am totally off base here

I am graphing how many pages per day we print on each printer using the information from this thread http://forums.cacti.net/about4422.html and it is working great. To me the logical way to add them all together would be to create a cron job that does a snmpwalk on the oid and pipe it to a text file for each printer, giving me a result like this for each printer
SNMPv2-SMI::mib-2.43.10.2.1.5.1.1 = Counter32: 543 where 543 is the number of pages for the day printed and then just write a script to get the total. Thats where I get stuck how do i get that number into cacti or rrd or whatever I need to. Or am I going about this totally wrong and there is a much better way to do this. We currently have around 90 printers I am monitoring, but I am really noob at cacti, having only used it for about 3 weeks now, but successfully monitoring 40 servers, 23 routers and 90 printers with more devices to come. Help please, and thanks in advance.

[Linegod]

Since you are already polling the devices, you could create an aggregate graph following the directions here: http://forums.cacti.net/viewtopic.php?t=5703

[kondoor]

Thanks for the link

I will try that when I get into work tomorrow, but my initial question after looking at that is will i have 90 items in the legend?

[Linegod]

Only if you add the Legend items. You could simply add the Legend item for the total.

[kondoor]

Thanks for the help, I think I got it going, it will look better once I have a real days data. Here is one of my branches

[Linegod]

Nice.

I think if I graphed the pages printed around here, someone would get fired

[kondoor]

funny you say that about people getting fired, I am on a crusade to get people to quit printing stupid things like email, jokes, webpages, and that sort of thing. Along with graphing how many pages are sent to the printer each day I also have syslog setup and I am keeping track of who is printing stuff to each printer. I hopefully won't have to go to the resort of getting people fired.