[rrd-users] Re: maybe a bit off topic (4GB RAM snmp)

[Brett Marler]

Florian,

> her is the output:
> term$ snmpget -v1 -c public 10.0.0.12 .1.3.6.1.4.1.2021.4.6.0
> enterprises.ucdavis.memory.memAvailReal.0 = -1
Wow, that is pretty strange. No need to worry, there are other ways that you 
can graph free memory on your Redhat box.

I assume that the output of "free" shows your 4GB RAM? If so, here's a small 
script you can use to collect the output of free and put it into a format that 
MRTG or RRDTool can use.

--
pc-linux% cat check-mem
#!/bin/sh

freemem=`/usr/bin/free | /bin/grep -i mem | awk '{print $4}'`

echo "$freemem";
--

Then in your mrtg.cfg just set your Target to be something like:

--
Target[linux-freemem]: `/etc/mrtg/scripts/check-mem`
--

Hope this is of some help to you.


Regards,
Brett Marler.



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