Memory Available Variable

toml

Is there a way to set the "memory available" variable in the alert's email message? There's one for "total memory" (${TotalMemory}) and one for "memory used" (${MemoryUsed}). I thought I could use arithmetic to subtract them for a value, but that doesn't work either. Am I overlooking something extremely obvious?

Thanks,

Tom

toml

I figured out how to set the message with this string:

${SQL:SELECT DISTINCT ${TotalMemory} - ${MemoryUsed} FROM Nodes} Bytes

The "Byte" at the end is because the result from this string is a numerical value and I couldn't get the parser to display the result as Bytes.

Thanks,

Tom