On Sun, Sep 10, 2006 at 12:27:41AM +1000, Darryl Lewis wrote: > I have about 100 rrd's that I'd like to modify and add Holt-Winters > forecasting to. > Being that I have a 12 months worth of data in each of them, I'm reluctant to > blow them away and start again. > I'd like to modify the existing databases to include > > RRA:HWPREDICT:rows:alpha:beta:seasonal period[:rra-num] > RRA:SEASONAL:seasonal period:gamma:rra-num > RRA:DEVSEASONAL:seasonal period:gamma:rra-num > RRA:DEVPREDICT:rows:rra-num > RRA:FAILURES:rows:threshold:window length:rra-num > > Does anyone have a script or procedure / set of instructions to add these to > existing rrd's?
No experience with HW, but transfering available data to a new database should be standard. 1: Create the new database, make sure to set "--start" slightly earlier than the oldest data you're going to insert. 2: Tune the new RRD so that it accepts gauge data (no matter the real DS types). Also set the heartbeat to a high number, at least as high as the largest step*steps in your RRAs. 3: Use rrdtool fetch to get data out of the original RRD. Feed this data into the new RRD 4: Tune the RRD back to its original settings. Step 3 may involve a couple of substeps, depending on the resolution of your RRAs. Make sure you understand data consolidation and you'll know what to do. HTH -- Alex van den Bogaerdt http://www.vandenbogaerdt.nl/rrdtool/ -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://lists.ee.ethz.ch/rrd-users WebAdmin http://lists.ee.ethz.ch/lsg2.cgi
