I think this is pretty much what I'm looking for, Paul. I was trying to come up with an example for Clifton.
Your example is right on the money, but let's move it over to hard disk space. I have a user drive which began life as 0% utilized. Each week it got 5% more utilized, i.e. 0% - 5% - 10% - 15% - 20%. I can pretty much predict with some certainty that after 20 weeks it will be completely full. I can give that information to management and offer them a choice, either you ask individuals to clean up the data they put on the drive, or you buy a new drive in 15 more weeks. The trend line allows me to make that case. I will happily accept ideas from anyone! :-) Dan ----- Original Message ----- From: "Paul C. Williamson" <[EMAIL PROTECTED]> > I think what Dan is asking for is some kind of "predictor" based on > historical data. Say 4 weeks ago, utilization was 3%, then 3 weeks > ago it was 5%, 2 weeks ago it was 8%, and last week it was 10%. > I know that this is not a perfect world, but I would say with some level > of certainty that this week will be about 12%, and next week will most > likely be in the neighborhood of 15%. It would be neat to show a > straight line that would show this "trend" over the next "x" weeks or > until the trend shows a certain percent of utilization (or maybe an > "SLA average exceeded" predictor?). I'm think about how to do this > one now... > > Paul > > >>> Clifton Royston <[EMAIL PROTECTED]> 03/21/01 02:32PM >>> > I think you need to define a little better exactly what you want this > trend line to graph. I didn't quite get it from this description. It > might turn out that it is doable already, or is something somebody > could tell you how to do if you clarify a little more. > > "Growth towards the service level" means what? Maximum value ever seen > to that point in time (maximum of maximum)? Exponential rolling > average of the maximum? Or did this tie in to the percentile > discussion because you want it to graph the 95th percentile over a > rolling time window? > -- 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
