Our organization currently uses the Cricket package to graph modem usage across all of out dial in POPs. Cricket is storing the polled data in standard RRD databases, and uses it's own CGIs to generate the graphs.
Most POPs have multiple pieces of dial-in equipment, so we need to have totals on one graph. For most areas this is not a problem, as Cricket has a function to sum data from all defined targets and display that graph. We run into an issue when we have two different pieces of equipment in the same POP. One type creates 3 data sources and 3 entries per polling interval in the RRD database. The other creates one one DS, 1 entry. We cannot use the Cricket sum function, as we need it to combine DS0 on oen device with DS 1 on the other for an accurate graph. We are able to use the rrdtool command line to create combined graphs like we want. However, we would like to be able to create a 3rd rrd database to hold the totals, and have Cricket engine run the graphs with the rest of our devices. The question then: Is it possible to combine two data sources from different RRD databases into one? Ie. Combine device1.rrd:DS0 with device2.rrd:DS1 to create total.rrd:DS0. If we can get at least that done, everything else we want to do would fall into place. I have considered dumping each DB to XML, parsing for the data I want, summing that up, generating new XML, and creating a new DB from that, but it almost seems like that is more work than it needs to be. Thanks in advance!!! -- -- Thomas Beecher II Network Administrator LocalNet, Inc 325 Hampton Hill Drive Williamsville, NY 14221 (716) 632-1133 x226 [EMAIL PROTECTED] -- 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
