I created this one to include details from iostat like the scripts for Solaris and AIX. 05-25-2011: cleaned up some duplicate code in the program.
UPDATE: This version is no longer maintained, but you can grab the updated version of this for RHEL on personal repo on Github: https://github.com/htdavis/ca-apm-fieldpack-epa-rhel
I'm working to get the version available on APM Marketplace (https://marketplace.ca.com/apm) updated with this latest version.