so many words, but no pictures.
Corwin Ziegler Hunts via observium wrote on 2024-06-25 19:13:
Hi Observium team,
We're having issues with some of the generated graphs. Some of our
devices report the light level received by SFPs using mW (rather than
dBm). We are on the latest stable revision (13582).
Issue 1: The graphs generated by Observium for these sensors usually
show an excessive scale of at least -100 mW to 100 mW when the data in
the specified time interval are entirely within the range 100 nW to 1
mW and usually only a small chunk of that. The calculated minimum and
maximum values shown below the graph are correct. These graphs worked
properly in the past with a prior version of Observium.
Issue 2: Selecting and deselecting the Force Autoscale option appears
to have no effect on the generated graph or displayed rrd graph
command. Manually running the generated rrd graph command after
removing the "--alt-autoscale" option results in a good graph.
Here is the raw SNMP output for one of the these sensors showing a
current value of 0.5560mW:
ENTITY-SENSOR-MIB::entPhySensorType.1000004631 = INTEGER: watts(6)
ENTITY-SENSOR-MIB::entPhySensorScale.1000004631 = INTEGER: milli(8)
ENTITY-SENSOR-MIB::entPhySensorPrecision.1000004631 = INTEGER: 4
ENTITY-SENSOR-MIB::entPhySensorValue.1000004631 = INTEGER: 5560
ENTITY-SENSOR-MIB::entPhySensorOperStatus.1000004631 = INTEGER: ok(1)
Corwin
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