[rrd-users] Re: Labeling graph values.

[Reinhard Scheck]

Alex van den Bogaerdt schrieb:
> On Tue, May 09, 2006 at 07:54:13AM +0200, Lemmermann, Jan wrote:
>
>> It contains a storage description (octet string) that I like to use to label the values in the graph.
>   
>> Index - Description - MB Size - MB Used
>> 1 - A:\ - 0 - 0
>> 2 - C:\ - 24450 - 3880
>> and on a solaris box it can look like this:
>>
>> Index - Description - MB Size - MB Used
>> 3 - / - 24680 - 1750
>> 11 - /home - 5658 - 1291
>
> Just to make sure I understand you: With "octet string" you mean
> "A:\" and "/export/home" and such?
>
> Typically these would be set from the calling script, not from
> within RRDtool itself.  RRDtool doesn't even have knowledge on
> this; RRDtool just stores numberic values.
>
> Your script should take care of proper quoting of the string; colons
> and backslashes have special meaning. Then it's just a matter of
> setting a variable (outside RRDtool) and using that variable in your
> graph script; it is substituted before RRDtool gets to see it.
>
> HTH
>   
Alex,

my understanding is close to yours. As I'm quite involved with cacti, an
rrdtool frontend, I'd like to direct Jan to http://www.cacti.net and the
forums at http://forums.cacti.net. There are templates, that support
those disk usage thingies. They store the"description" of the disk in a
mysql table and create "dynamic" rrdtool graph statements providing the
according "description" as a title or the like.
hth
Reinhard

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