How setup scheduler to run Heath check for data block automatically ?

 Hi all,

   I read about " Running Health Checks with Health Monitor " and my goal is : Setup scheduler to check Data Block Integrity Check automatically. This document said that: 

   Health checks can be run in two ways:

Reactive—The fault diagnosability infrastructure can run health checks automatically in response to a critical error.Manual—As a DBA, you can manually run health checks using either the DBMS_HM PL/SQL package or the Enterprise Manager interface. You can run checkers on a regular basis if desired, or Oracle Support may ask you to run a checker while working with you on a service request.  I can run health check for Data Block manual but I must enter datafile number and data block number parameters. Reactive = mean if my database server has error, oracle run this health check automatically ?? So, are there some way I can setup scheduler to run health check for data block on all data file ??  Thanks very much.