RTFM to myself RRA:AVERAGE | MIN | MAX | LAST:xff:steps:rows
xff The xfiles factor defines what part of a consolidation interval may be made up from *UNKNOWN* data while the consolidated value is still regarded as known. It is given as the ratio of allowed *UNKNOWN* PDPs to the number of PDPs in the interval. Thus, it ranges from 0 to 1 (exclusive). > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > [EMAIL PROTECTED] > Sent: 19 September 2008 15:53 > To: [email protected] > Subject: Re: [rrd-users] 5 second resolution definition. > > Hi > (Try again... with reply to all.) > Thanks for the reply! I just realized my question was a bit vague... > > rrdtool create test.rrd \ > --start 920804400 \ > DS:speed:COUNTER:600:U:U \ > RRA:AVERAGE:0.5:1:24 \ > RRA:AVERAGE:0.5:6:10 > > I am referring to the last two lines; the 0.5 value. I > understood that to be where the frequency of sampling is set. > > from the example on > http://oss.oetiker.ch/rrdtool/tut/rrdtutorial.en.html > RRA:AVERAGE:0.5:1:24 > RRA:AVERAGE:0.5:6:10 > > and keeps 24 samples (24 times 5 minutes is 2 hours). The > other averages > 6 values (half hour) and contains 10 such averages (e.g. 5 hours) > > > I am reading the rrdcreate page now so should hopefully find > my answer in there. > > Regards > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of > Simon Hobson > > Sent: 19 September 2008 14:28 > > To: [email protected] > > Subject: Re: [rrd-users] 5 second resolution definition. > > > > <[EMAIL PROTECTED]> wrote: > > > > >I am trying to define an RRA for my graph but I do not > > understand how > > >to define the "part" section of the RRA definition > > > > "part" section ? > > > > >5 minutes = 0.5 > > >1 minute = 0.25 > > > > > >However I dont understand how this value is determined. I do not > > >understand how 5 minutes can be 0.5 and 1 minute be 0.25. I > > can't see > > >any relation so I dont know how to deduce anything further from it. > > >Googling has only turned up 5 and 1 minute examples so far. > > > > http://oss.oetiker.ch/rrdtool/doc/rrdcreate.en.html > > > > > > I think you are getting confused. > > > > step sizes are defined in seconds - so "5" for 5 seconds in the rrd > > definition. > > > > Then you need to define one or more DSs, and here you need > to define > > "heartbeat" - how long you can go between samples before > the data is > > deemed to be invalid. Again, this is defined in seconds. > > > > And lastly, define one or more consolidation functions (CF). > > I thik this is where you are getting confused, as "0.5" and "0.25" > > sound like xff values : "xff The xfiles factor defines what > part of a > > consolidation interval may be made up from > > *UNKNOWN* data while the consolidated value is still regarded as > > known." A value of 0.5 means that HALF of the values in the > > consolidation interval may be unknown before the whole interval is > > considered unknown. > > > > _______________________________________________ > > rrd-users mailing list > > [email protected] > > https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users > > > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please visit > http://www.messagelabs.com/email > ______________________________________________________________________ > > _______________________________________________ > rrd-users mailing list > [email protected] > https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users > ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
