[rrd-users] Templates and variables

[Cyril Vieville]

Hi everybody,

I still have my problem of discontinued results but for the moment I try to build some templates as i´m really not satisfied by the ones from PNP.
So I almost finished one for the swap :

#
# Template for check_swap
# Cyril Vieville 25/03/2009
#
#
$warn = $MAX[1] - $WARN[1];
$crit = $MAX[1] - $CRIT[1];
$warn_pct= $warn * 100 / $MAX[1];
$crit_pct= $crit * 100 / $MAX[1];

$opt[1] = "-X 0 --vertical-label PERCENT -l 0 -u 100 --title \"Swap usage $hostname\" --color CANVAS#000000 --color BACK#101010 --color FONT#C0C0C0 --color MGRID#80C080 --color GRID#808020 --color FRAME#808080 --color ARROW#FFFFFF --color AXIS#FFFFFF --color SHADEA#C0C0C0 --color SHADEB#C0C0C0 ";

$def[1] = "DEF:value=$rrdfile:$DS[1]:AVERAGE ";
$def[1] .= "CDEF:current=$MAX[1],value,- ";

$def[1] .= "CDEF:current_pct=current,100,*,$MAX[1],/ ";
$def[1] .= "CDEF:good=current_pct,$warn_pct,GT,0,current_pct,IF ";
$def[1] .= "CDEF:much=current_pct,$warn_pct,GT,current_pct,0,IF ";
$def[1] .= "CDEF:toomuch=current_pct,$crit_pct,GT,current_pct,0,IF ";

$def[1] .= "AREA:good#00FF00:\"Normal usage\" ";
$def[1] .= "AREA:much#FFFF00:\"Exceeding warning threshold\" ";
$def[1] .= "AREA:toomuch#FF0000:\"Exceeding critical threshold\\n\" ";
$def[1] .= "LINE1:current_pct#FFFFFF:  ";

$def[1] .= "HRULE:$warn_pct#9900CC:\"Warning on $warn MB ( $warn_pct % )\" ";
$def[1] .= "HRULE:$crit_pct#0000FF:\"Critical on $crit MB ( $crit_pct % )\\n\<file:///\\n\>" ";

$def[1] .= "GPRINT:current:LAST:\"%9.2lf MB currently used \\n\<file:///\\n\>" ";
$def[1] .= "GPRINT:current:MIN:\"%9.2lf MB min used \\n\<file:///\\n\>" ";
$def[1] .= "GPRINT:current:MAX:\"%9.2lf MB max used \\n\<file:///\\n\>" ";
$def[1] .= "GPRINT:current:AVERAGE:\"%9.2lf MB average used\" ";


It works very fine but I just want to add some percentages on my graph. How can I get the percentage of the variables current:LAST, current:MIN, current:MAX, current:AVERAGE ?
Another question : Is it possible to transform a PNP variable like current:LAST in a PHP variable ?

Thank you for your help

Cyril Viéville
System Administrator
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