cpu AND ram usage supermetric

Hi all,

I'm using vcops 5.7

I need an alarm when cpu&ram usage are both < 40% for a week on a host system.

I think a supermetric can help me, but I don' t know how.

I think something like this:

if (cpu usage <40) AND (mem usage <40) then supermetricvalue=1

then I define a KPI like this: if supermetricvalue=1 for 840 collection then alarm

but I don't know if is possible to define a supermetric like that.

Any suggestion?

Thanks

ig