[rrd-users] Re: MRTG to RRD XML file
oetiker at ee.ethz.ch
Wed Aug 18 02:10:25 MEST 1999
Today you sent me mail regarding Re: [rrd-users] Re: MRTG to RRD XML file:
*> > Today you sent me mail regarding [rrd-users] Re: MRTG to RRD XML file:
*> > *> make sure to use GAUGE datasource types.
*> > *> make sure to use a start time that is about 800 days ago.
*> > *> MRTG stores 2 datasources
*> > *> MRTG stores (approx.):
*> > *> 600 times 5 minute samples, time x to x+50h
*> > *> 600 times 30 minute samples, time x+50h to x+14d2h
*> > *> 600 times 2 hour samples, time x+14d2h to x+64d2h
*> > *> 732 times 1 day samples. time x+64d2h to x+796d2h
*> > *> RRAs will always be from the beginning (unlike MRTG) so if you do
*> > *> not want to loose any data, you need to create your RRAs larger than
*> > *> 600 rows !
*> > *> - Copy this database
*> > I actually think this approach would require you to have one RRD with one
*> > AVERAGE type RRAs and another one with MAX type RRAs ... otherwhise the MAX
*> > stuff will not be kept the way it was ...
*> MRTG logfiles are already calculated values so you need to insert them
*> in an RRD file using GAUGE. Afterwards, you can change the datasource
*> type into COUNTER.
yes this is correct ...
*> AFAIK the incoming data will be processed inside the CDP prep stuff and
*> as there is one per RRA, these will behave differently for AVERAGE and
*> MAX RRAs. Am I wrong in this ?
yes, and this is the idea ... so you need two rrds with GAUGE data source
and one with AVERAGE RRAs and another with MAX RRAs and the merge as you
______ __ _
/_ __/_ / / (_) Oetiker, Timelord & SysMgr @ EE-Dept ETH-Zurich
/ // _ \/ _ \/ / TEL: +41(0)1-6325286 FAX:...1517 ICQ: 10419518
/_/ \.__/_.__/_/ oetiker at ee.ethz.ch http://ee-staff.ethz.ch/~oetiker
* To unsubscribe from the rrd-users mailing list, send a message with the
subject: unsubscribe to rrd-users-request at list.ee.ethz.ch
More information about the rrd-users