Did you know that Toad’s Database Probe screen is customizable? That’s why it’s vastly superior to the simple Database Monitoring screen. Here’s a basic screen snapshot:
 
 
 
Maybe I don’t think it’s a big deal that the SGA’s REDO LOG buffer can be pretty big these days – especially since it kind of sets itself if using automatic memory allocation. So I’d like to only see this alert in the case that it’s really questionable – say that the size is too small. Toad’s Database Probe makes such user customizations a snap. Simply press the toolbar icon in the screen to launch the Database Probe setting screen shown below.
 

 
Now switch to the “Alerts” tab and scroll down to the rule of interest: in this case the “Excessive Redo Log Buffer Size” entry. The obvious choice would be to uncheck or to inactivate this entry, and thereby disable this rule from being executed. That would totally eliminate the warning sign icon from displaying. But we’re going to modify the rule to fire when it’s too small instead.  So, we simply need to push the “Edit” button to launch the Alert edit screen shown here:
 

 
Now we can change the message, where it displays on the screen, and the logic that’s fired by this rule to generate the alert. The “Database Probe” screen contains an interpreter, so we can construct pretty darn complex logic – and pre-test it via the “Test” button before committing it.  Now that’s power.
 
Furthermore, we could have even created our own new rules. The only limitation would be that we cannot modify the main screen’s architecture diagram – so our new message needs to display somewhere within that context. Imagine the possibilities …