RRD Tool help

I've been doing this... I'm not sure if it's "right" but it works well.

If I am collecting a number, say LAG=7 (in seconds)...

        TFILE=${BBRRDS}/${HOST}/${TEST}.rrd
        if test ! -f ${TFILE}
        then
                rrdtool create ${TFILE} DS:trip:GAUGE:600:1:U RRA:AVERAGE:0.5:1:576 RRA:AVERAGE:0.5:6:576 RRA:AVERAGE:0.5:24:576 RRA:AVERAGE:0.5:288:576
        fi
        rrdtool update ${TFILE} N:${LAG}

This one is a little more sophisticated... it looks at the RPM of 4 different fans...

         TFILE=${BBRRDS}/${HOST}/rpm.`printf "fan_%02d" ${2}`.rrd
         if test ! -f ${TFILE}
         then
                 rrdtool create ${TFILE} DS:rpm:GAUGE:600:1:U RRA:AVERAGE:0.5:1:576 RRA:AVERAGE:0.5:6:576 RRA:AVERAGE:0.5:24:576 RRA:AVERAGE:0.5:288:576
         fi
         rrdtool update ${TFILE} N:${3}

You will also have to update your hobbitgraph.cfg:

Note the first one is mail.rrd and the actual variable is "trip", so the graph config looks like:

[mail]
        TITLE Mail Round-Trip Time
        YAXIS Seconds
        DEF:offset=mail.rrd:trip:AVERAGE
        LINE2:offset#00CC00:Seconds
        GPRINT:offset:LAST: \: %5.1lf (cur)
        GPRINT:offset:MAX: \: %5.1lf (max)
        GPRINT:offset:MIN: \: %5.1lf (min)
        GPRINT:offset:AVERAGE: \: %5.1lf (avg)\n

The second one looks at MULTIPLE entries for one host, so it looks like:

[rpm]
        FNPATTERN rpm.(.+).rrd
        TITLE Revolutions per Minute
        YAXIS RPM
        DEF:p at RRDIDX@=@RRDFN@:rpm:AVERAGE
        LINE2:p at RRDIDX@#@COLOR@:@RRDPARAM@
        GPRINT:p at RRDIDX@:LAST: \: %5.1lf (cur)
        GPRINT:p at RRDIDX@:MAX: \: %5.1lf (max)
        GPRINT:p at RRDIDX@:MIN: \: %5.1lf (min)
        GPRINT:p at RRDIDX@:AVERAGE: \: %5.1lf (avg)\n

Modify hobbitserver.cfg and make sure you update the TEST2RRD and GRAPHS items so that you'll see them.

Note that if you're really collecting just one number and want to graph it, using the "NCV" method described in the "Help > Custom Graphs" tutorial is MUCH easier.

Jon

Roberts, James wrote:

 sorry to bother you but....

Is there an easy walk through on how to add custom strip output to RRD
graphs?


Thanks in advance 

James....