or, you can do it the easy way and pick an OID that will always return
0 for a value, then plug it in.

ie:

Target[sda2]: dskPercent.2&oid.that.is.zero:blah@woof.com


To get one, simply snmpwalk the device a few times and watch for a
non-changing zero value


hmm...or, looking at
http://people.ee.ethz.ch/~oetiker/webtools/mrtg/reference.html I see
something I did not know before:

noi

When using rateup for graph generation, you can use this option to
stop rateup drawing a graph for the 'I' or first variable. This also
removes entries for this variable in the HTML page MRTG generates, and
will remove the peaks for this variable if they are enabled. This
allows you to hide this data, or can be very useful if you are only
graphing one line of data rather than two. This option is not
destructive - any data received for the the variable continued to be
logged, it just isn't shown.

noo

Same as above, except relating to the 'O' or second variable.


pretty cool...may want to try this



>
> Yes, you can graph only one line on a graph (i did it):
>
> just invoke a script in your target that returns :
>
> 0
> value
> 0
> 0
>
> "value" is your percent disk used here. You must have a "carried
return" at
> the end of each line.
>
> For more information, look at "External Monitoring Scripts" in the
> mrtg/doc/reference.html. (generally it is used for non SNMP queries,
but you
> it works with SNMP as well : just use snmpget in your script for
returning
> the value !).
>
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