SNMP free memory transform script

[curruscanis]

I have been working on a SNMP Free memory % transform script and I have found few examples that I can't get to work and I am not sure what I am doing wrong.

I have created a DCI parameter for total memory for the device, and another DCI for the free % transform as shown here.
memTotalReal, OID parameter - .1.3.6.1.4.1.2021.4.5.0
Memory Free %, OID parameter - .1.3.6.1.4.1.2021.4.6.0

I get the correct value for the Total Memory DCI, and on the second DCI for free % I apply this transform script:

sub main()
{
  total = GetDCIValue($node, FindDCIByName($node, "memTotalReal"));
 
  return $1 / total * 100;
}

However, I only get the value of the DCI SNMP poll as if I didn't do any tranform.  So it does not seem to be returning the correct value.

Can anyone tell me what I am doing wrong?

netxms 2.0M4

[tomaskir]

The function you want to use is probably FindDCIByDescription and then GetDCIValue.

Or just use GetDCIValueByDescription

[curruscanis]

Thank you tomaskir, I replaced "FindDCIByName" with "FindDCIByDescription" and that did the trick.