On Mon, 2009-01-26 at 18:35 +0100, user-d54077869176@xymon.invalid wrote:
Hi,
I wrote a test reporting voltages from my motherboard's sensors. Those
values are positives and negatives (+12V, -12V).
I use split NCV to get values in different RRD files, and almost everything
is OK, but I don't have any value for the negatives voltages. I added a -
before the numeric value, but I don't get any value in RRD file :
You need to run rrdtune to set the minimum.
rrdtool tune -i:lamda=-12 xymon/data/rrd/host/hardware,Negative_12V_volt.rrd
(I think that's the syntax).
Right now your minimum is set to zero.
user at host:~$ rrdtool dump
~xymon/data/rrd/host/hardware,Negative_12V_volt.rrd |head -50
<!-- Round Robin Database Dump --><rrd> <version> 0003 </version>
<step> 300 </step> <!-- Seconds -->
<lastupdate> 1232991020 </lastupdate> <!-- 2009-01-26 18:30:20 CET
-->
<ds>
<name> lambda </name>
<type> GAUGE </type>
<minimal_heartbeat> 600 </minimal_heartbeat>
<min> 0.0000000000e+00 </min>
<max> NaN </max>
<!-- PDP Status -->
<last_ds> UNKN </last_ds>
<value> NaN </value>
<unknown_sec> 20 </unknown_sec>
</ds>
Could someone told me how to work with negative values ?