At 13:45 +0000 24/12/08, I wrote: >I'm just setting up logging for the new UPS at work, and looking at >teh SNMP MIB I see that it has entries for "The maximum utility line >voltage in 0.1 VAC for last 1 minute." and "The minimum utility line >voltage in 0.1 VAC for last 1 minute." as well as plain input >voltage. I'm not really interested in logging voltage in small >detail, but I would be interested in having max and min. > >So if I were collecting data once a minute, and only graphing at 5 >minute resolution, is there an easy way to get the min and max values >into the RRD ? > >The only way I can think of is to set step to 1 (with suitably long >heartbeat), and do 3 (or 4 ?) updates in close succession. Ie, do >updates for t:act, t+1:min, and t+2:max (where act is current voltage >reported, and min/max are the "min/max over last minute" reported by >the UPS) to set the actual value for the last 58s, then the min and >max for 1s each.
No ideas ? -- Simon Hobson Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed author Gladys Hobson. Novels - poetry - short stories - ideal as Christmas stocking fillers. Some available as e-books. _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
