[rrd-users] creating fancy graphs

[Jeremy Harris]

Matthew Sacks wrote:
> does anyone happen to know how this graph could be created?
> 
> http://oss.oetiker.ch/rrdtool/gallery/charles.png

Take this and modify to suit:

    'diskstats' => [
        'DEF:a=$DATADIR/$DATAFILE:reads_issued:AVERAGE',
        'DEF:b=$DATADIR/$DATAFILE:sectors_read:MAX',
        'DEF:c=$DATADIR/$DATAFILE:sectors_read:AVERAGE',

        'DEF:out_iss=$DATADIR/$DATAFILE:writes_issued:AVERAGE',
        'DEF:out_max=$DATADIR/$DATAFILE:sectors_written:MAX',
        'DEF:out_avg=$DATADIR/$DATAFILE:sectors_written:AVERAGE',

        'CDEF:in_iss_m=0,a,-',
        'CDEF:in_max_m=0,b,-',
        'CDEF:in_avg_m=0,c,-',
        'CDEF:cline=b,0,EXC,POP',
        'CDEF:in_unk=c,UN,-$UNKLEVEL,UNKN,IF',
        'CDEF:out_unk=out_avg,UN,$UNKLEVEL,UNKN,IF',

        'AREA:in_unk#888888:missing data',
        'AREA:out_unk#888888',

        'AREA:in_iss_m#ffcccc:reads issued',
        'AREA:in_max_m#ffaaaa:peak input',
        'LINE1:in_avg_m#ff0000:average input',
        'AREA:out_iss#ccffcc:peak output',
        'AREA:out_max#aaffaa:peak output',
        'LINE1:out_avg#00cc00:average output',
        'LINE1:cline#010000',
    ],