Cheshire Cat Computing

At work I have a DELL UPS which identifies itself as "Dell UPS Rack 5600W High Efficiency Online HV - 230V".

According to some documentation I found in a pdf file from Dell most of the interesting information is found in oids described by an IETF UPS MIB. From that specification and using apc.htp as a starting point I implemented this template.

I call this template from a script which creates its own directory for each UPS. Unfortunately the ethernet speed is reported wrong by my UPS and the traffic is also allways set to 0, therefore I have added the option --nointerfaces when calling cfgmaker from my script.

The created directory can be updated by the same Makefile and script as described in this thread: viewtopic.php?f=34&t=1616

So far I have only tested this template with one single UPS, I have also not yet any experience from powerouts with this UPS, so I don't know for sure if battery current and seconds on battery will work.

MRTG has support for the option WithPeak to save max values. I'm not aware of any option to save min values, but I wish there was one. I think it would be more interesting to see values like "minimum minutes remaining on battery" than "maximun minutes left on battery".

regards Henrik

I found that precision could be better. This updated template file gives better precision, it mostly affects the Ampere measurements which previously got quantified as integers.

regards Henrik

I have found a better way to improve precision.

regards Henrik

_________________
Steve Shipway
UNIX Systems, ITSS, University of Auckland, NZ
Woe unto them that rise up early in the morning... -- Isaiah 5:11