creating custom monitoring rules

A little background on this

I am new to ops center monitoring

We have quite a lot of databases in our environment

filesystems for databases are managed by the database and they can be 99% full at all times on some of them

I need to monitor the filesystems that are not controlled by the databases

is there anyway to exclude certain filesystems from being monitored?

I have not found this option so i was trying to write an expression to do this on all our zones that contain databases

Even if i needed to put this rule into each zone that would be ok ( Better if i could do it across the board )