Kalpesh Patel wrote:
>
> I am using the RRDTool for the first time and I need help. Basically I am
> trying to insert a single number per day into an RRDTool database. Following
> is the perl code that is suppose to insert the number and optionally creates
> a RRD file with a single RRA if it does not exist:
[removed most perl code, no comments on that]
> @options = ("-b", $start, "-s", $step,
> "DS:rows:DERIVE:200:U:U",
> "RRA:AVERAGE:0.5:1:$runs");
> In particular I am interested in understanding what the additional fields
> entail (such as 200:U:U, and AVERAGE:0.5:1 in above) when creating the RRA.
> I was unable to find any information from the examples in the package or the
> tutorial on the web site.
I'm sure this is covered. If not in the docs then on faq.mrtg.org
Oh well,
200 number of seconds that may occur between two updates
You want *one* update per 86400 seconds (one day) so
you need a number of *at least* 86400.
U minimum acceptable rate (U == unspecified / no limit)
U maximum acceptable rate
AVERAGE is covered in the docs and on the faq site
0.5 see other mail sent just a couple of hours ago
1 number of PDPs per CDP
As a side note: it is RRD not RRA. RRA is a part of an RRD.
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