[Xymon] Xymon Graphs

[Jeremy Laidman]

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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>
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