What he said. You might also want to increase the length of the RRA proportionally, as well, and maybe decrease the DS heartbeat (as you have a shorter step size now). Also, with a 1-dp RRA, you dont need to have the MIN and MAX, as they will be the same as the AVG for a group of a single point.
Try this: rrdtool create arcsize.rrd --start N --step 15 DS:arcsize:GAUGE:30:0:5000 RRA:AVERAGE:0.5:1:43920 If you want the 1-hour CDP RRAs as well (for graphing purposes) then just add the original 3 RRA definitions to the end of the statment: rrdtool create arcsize.rrd --start N --step 15 DS:arcsize:GAUGE:30:0:5000 RRA:AVERAGE:0.5:1:43920 RRA:MIN:0.5:12:3660 RRA:MAX:0.5:12:3660 RRA:AVERAGE:0.5:12:3660 Steve Steve Shipway University of Auckland ITS UNIX Systems Design Lead [email protected]<mailto:[email protected]> Ph: +64 9 373 7599 ext 86487 ________________________________ From: [email protected] [[email protected]] on behalf of Pablo Sanchez [[email protected]] The problem is your RRA's are consolidating 12 points: 12 x 15 (second steps) = 180 seconds. Change your RRA's so they consolidate one step and you'll get what you're after.
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