[Xymon] Xymon Graphs

To handle variable numbers of disks with varying disk names, you need to end up with multiple RRD files, named (eg) temp,hda.rrd, temp,hdb.rrd, and so on.

To have xymond_rrd generate separate RRD files, you need to use SPLITNCV in xymonserver.cfg instead of NCV, like:

SPLITNCV_temp="*:gauge"

You'll need to restart Xymon, or at least kill off all of the xymond_rrd processes, and you should start getting multiple RRD files. Then you can use something like this in graphs.cfg:

[temp] TITLE HDD Temperature YAXIS Degrees FNPATTERN temp,(.*).rrd DEF:disk at RRDIDX@=@RRDFN@:lambda:AVERAGE LINE2:disk at RRDIDX@#@COLOR@:@RRDPARAM@ COMMENT:\n GPRINT:disk at RRDIDX@:LAST: \: %5.1lf%s (cur) GPRINT:disk at RRDIDX@:MAX: \: %5.1lf%s (max) GPRINT:disk at RRDIDX@:MIN: \: %5.1lf%s (min) GPRINT:disk at RRDIDX@:AVERAGE: \: %5.1lf%s (avg)\n

J

On 28 August 2012 08:47, Adam Goryachev <adam at websitemanagers.com.au> wrote:

Hi, I've written a quick addon to collect the temperature of each HDD in my system, and report the data back to Xymon like this:

Fri Aug 24 02:33:11 EST 2012 Temp GOOD (27 degrees)

sda : 27 sdb : 27

Also, hobbit is putting this data in to an RRD file called temp.rrd:

<?xml version="1.0" encoding="utf-8"?> <!DOCTYPE rrd SYSTEM "http://oss.oetiker.ch/rrdtool/rrdtool.dtd" <http://oss.oetiker.ch/rrdtool/rrdtool.dtd>> <!-- Round Robin Database Dump --> <rrd> <version>0003</version> <step>300</step> <!-- Seconds --> <lastupdate>1345738019</lastupdate> <!-- 2012-08-24 02:06:59 EST -->

    <ds>
            <name> sda </name>
            <type> GAUGE </type>
            <minimal_heartbeat>600</minimal_heartbeat>
            <min>NaN</min>
            <max>NaN</max>

            <!-- PDP Status -->
            <last_ds>37</last_ds>
            <value>4.4030000000e+03</value>
            <unknown_sec> 0 </unknown_sec>
    </ds>

    <ds>
            <name> sdb </name>
            <type> GAUGE </type>
            <minimal_heartbeat>600</minimal_heartbeat>
            <min>NaN</min>
            <max>NaN</max>

            <!-- PDP Status -->
            <last_ds>39</last_ds>
            <value>4.6410000000e+03</value>
            <unknown_sec> 0 </unknown_sec>
    </ds>

So it looks (to me) as though all that is working.

I'm now trying to get the pretty graph to show up, here is my current definition which doesn't work: [temp] TITLE HDD Temperature YAXIS Degrees DEF:hda=temp.rrd:hda:AVERAGE DEF:hdb=temp.rrd:hdb:AVERAGE DEF:hdc=temp.rrd:hdc:AVERAGE DEF:hdd=temp.rrd:hdd:AVERAGE DEF:hde=temp.rrd:hde:AVERAGE DEF:sda=temp.rrd:sda:AVERAGE DEF:sdb=temp.rrd:sdb:AVERAGE DEF:sdc=temp.rrd:sdc:AVERAGE DEF:sdd=temp.rrd:sdd:AVERAGE DEF:sde=temp.rrd:sde:AVERAGE LINE2:hda#FF0000:hda LINE2:hdb#0000FF:hdb LINE2:hdc#00FF00:hdc LINE2:hdd#FFFF00:hdd LINE2:hde#FF00FF:hde COMMENT:\n GPRINT:hda:LAST:hda \: %5.1lf%s (cur) GPRINT:hda:MAX: \: %5.1lf%s (max) GPRINT:hda:MIN: \: %5.1lf%s (min) GPRINT:hda:AVERAGE: \: %5.1lf%s (avg)\n GPRINT:hdb:LAST:hdb \: %5.1lf%s (cur) GPRINT:hdb:MAX: \: %5.1lf%s (max) GPRINT:hdb:MIN: \: %5.1lf%s (min) GPRINT:hdb:AVERAGE: \: %5.1lf%s (avg)\n GPRINT:hdc:LAST:hdc \: %5.1lf%s (cur) GPRINT:hdc:MAX: \: %5.1lf%s (max) GPRINT:hdc:MIN: \: %5.1lf%s (min) GPRINT:hdc:AVERAGE: \: %5.1lf%s (avg)\n GPRINT:hdd:LAST:hdd \: %5.1lf%s (cur) GPRINT:hdd:MAX: \: %5.1lf%s (max) GPRINT:hdd:MIN: \: %5.1lf%s (min) GPRINT:hdd:AVERAGE: \: %5.1lf%s (avg)\n GPRINT:hde:LAST:hde \: %5.1lf%s (cur) GPRINT:hde:MAX: \: %5.1lf%s (max) GPRINT:hde:MIN: \: %5.1lf%s (min) GPRINT:hde:AVERAGE: \: %5.1lf%s (avg)\n

I think the problem is that not every machine will have the same number of disks, nor will they have the same type of disk. Can anyone suggest how to re-write this so that it will work?

Thanks, Adam

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