does this make any sense? Daily (5 Minute Average) steps -1 rows- 229536 Weekly (30 Minute Average) steps - 6 rows- 38256 Monthly (2 Hour Average) steps- 24 rows - 9564 Yearly (1 Day Average) steps- 288 rows - 797
Regards, Andrew >>> Stephan Harren 02/04/03 03:33AM >>> But if you graph for one year of data, this will be 105120 values on 600 pixels. What kind of values will rrdtool graph with? I tried, and from my experience, the MAX graph is higher if you keep an rra for the MAX values than the MAX graph if you don't. I guess this happens because rrd (maybe, just guessing) averages the 5-min values to appropriate information fitting into the pixel parameters. But anyway, graphs ! are ! different if you don't keep the max or keep the max data. Anyone tell me if I'm wrong. Best regards, Stephan Am Dienstag, 4. Februar 2003 08:32 schrieb Ketil Oftedahl: > Andrew, > > I think you can get by by using only ONE RRA. If you sample tha data at > 5 minute intervals and store every sample for the 2 year period there > will be no need to store additional average/max values. > > > RRA:AVERAGE:0.5:1:210240 \ > > This will be the "raw" storage of all samples for 17520 hours (730 days) > > > RRA:AVERAGE:0.5:6:700 \ > > This will give you 30 minute averages for 350 hours > > > RRA:AVERAGE:0.5:24:775 \ > > ...and 2 hour averages for 1550 hours > > > RRA:AVERAGE:0.5:288:797 \ > > ...and 24 hour averages for 19128 hours (797 days) > > Only this last one will cover a longer period than the raw 5-minute step > RRA. > If you increase the 5-minute step RRA to cover 797 days (if that's what > you need) you will only need that ONE RRA. > > If you store every sample for the required period you will be able to > create both AVERAGE and MAX graphs for any period up to the total RRA > storage period with any resolution up to the sample/storage interval. > (Although a 2-year graph with 5-minute step size will be rather wide > ;->) > > Creating MAX or MIN RRAs will only be required when you are using the > consolidation functionality to store data lass often than the sample > interval but still want to keep the MAX/MIN values. > > Rgds, > Ketil > > Andrew Werbowy wrote: > > So should I use MAX or not? -- Stephan Harren Manager Site Operations MFN-IS ------------------------------- Phone +49 69 90554 153 Fax +49 69 90554 111 Cell +49 173 7011126 -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
