Re: [rrd-users] Experiance in HW forcast

2012-05-13 Thread Tobias Oetiker
Michael, Yesterday Michael Schwartzkopff wrote: > > > > take some high resolution sample data worth several seasons (weeks) > > and then try out the different parameters ... note some are very > > sensitive ... the best way to get your config right is to tune with > > real data ... > > Yes. I rea

Re: [rrd-users] Experiance in HW forcast

2012-05-13 Thread Reinhard Scheck
I am interested in some more words, be it help or caveats, on different ways/examples how to handle forecasting. Not only to use it on my own but to provide those features for the rrdtool based Cacti project. I would need some examples to guide our users to handle exactly those questions asked in t

Re: [rrd-users] Experiance in HW forcast

2012-05-13 Thread Cosimo Streppone
On Sun, 13 May 2012 20:39:21 +0200, David Kuder wrote: > On Sun, May 13, 2012 at 11:26 AM, Cosimo Streppone > wrote: > >> I had never heard about "hardware forecasting" before. >> Can you point me to some URLs to start reading about it? > > HW == Holt Winters > > http://www.it.iitb.ac.in/~pr

Re: [rrd-users] Experiance in HW forcast

2012-05-13 Thread Cosimo Streppone
On Sun, 13 May 2012 08:12:26 +0200, Michael Schwartzkopff wrote: > In the last week I read into the HW forecasting and the implementation > in the rrdtools. Hi, I had never heard about "hardware forecasting" before. Can you point me to some URLs to start reading about it? Thanks, -- Cosi

Re: [rrd-users] Experiance in HW forcast

2012-05-13 Thread j.halifax2
Hi all, In my experience, for forecasting it is necessary to include some  "intelligence" about the nature of data. The "blind" forecasting didn't provide me satisfactory results. For example, in my pro-active system  monitoring Multi-ISP operation (in 2001) alerting and predicting probl

Re: [rrd-users] Experiance in HW forcast

2012-05-13 Thread Tobias Oetiker
Hi Michael, Today Michael Schwartzkopff wrote: > Hi, > > In the last week I read into the HW forecasting and the implementation in the > rrdtools. > > After reading a lot there are still some questions open: > > 1) How do I choose the initial values for the fitting parameters alpha, beta > and ga