rrdtool uses the values the rrd holds. For the given time frame you want to graph, it will try to take the highest resolution data.
If you just store 5 minute samples, it will never even think of using a 2 hours average. 2 hours average samples can only be displayed if your rrd database has an RRA that averages over 2 hours. you always need 1 RRA (=consolidated data) in your database, even if it just consolidates single samples. See the tutorial on the rrdtool website for more info. Serge. -----Original Message----- From: Stephan Harren [mailto:[EMAIL PROTECTED] Sent: Thursday, January 30, 2003 12:57 PM To: [email protected] Subject: [rrd-users] How does rrdtool behave if I store 5-minute-values for one year? Hi All, what I'm asking myself is how does rrdtool behave, if I store 5-minute-values for one year and nothing else? What if I graph a timeframe of 2 months? Probably it would pick one pixel for every 2 hours. Will it use just the 2-hour-values and ignore the rest? Will it build the averages and maxes for that two-hour intervals internally and graph them? If yes, then do I really need consolidated data in my rrd? Will it find the max by every five-minute-value or will it just take the 2-hour-values and ignore the values in between? Best regards, Stephan -- 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
