Monitor Percentage Changes.
Sometimes firm changes aren't good enough - we need percentage changes. For example, a drive could drop from 1.5 TB to 500 GB over a 1 yr. period and this would be entirely normal. But what wouldn't be reflected would be if a 1.5 TB drive dropped to 650 TB in 2 hrs. This would indicate a severe problem that I am not aware of any way that AdventNet's OpManager currently handles.
David.
David.