[mrtg] Re: Calculations

Ashley M. Kirchner ashley at pcraft.com
Fri Mar 31 01:26:08 MEST 2000

Chuck.Curto at tmcaz.com wrote:

> Here's another one for you. Is it possible (and I'm sure it is since MRTG is
> so configurable) to do calculations such as subtraction or multiplication on
> some of my values? I'm monitoring hard disk "free space" but I actually want
> "space used". If I subtract 100 from the "percent of free space" it will give
> me the "percent of space used".

    Make your data gathering script do that.  Although, most systems will report
both used, as well as free space.  You just need to grab the right value.  I'm
monitoring 3 machines' disk spaces right now, and all three of them (different
platforms) report both used, as well as free space, and all I care for is the
used one, so I only parse out that information.


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