Show disk usage in Trends/Graphs

[Jim Avery]

On 17/05/07, Palle Jensen <palleje at gmail.com> wrote:
> Thanks for all help!
>
> The different graphs, PNP, MRTG do they store the perf. data in a database or logfile?

See http://nagios.sourceforge.net/docs/2_0/perfdata.html

Put simply, recording of performance data is optional - if you want to
use it, you must enable it (globally and for each service for which
you want to gather performance data).  When enabled, performance data
is gathered each time the plugin is run.

The performance data can be written to a log file (not the normal
nagios log file)  and/or Nagios can execute a script to handle the
performance data each time a plugin is run.  In the case of PNP, there
is a perl script which creates/updates a round-robin database
(http://oss.oetiker.ch/rrdtool/) for each service.

hth,

Jim

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