Exadata IORM analysis

Carlos Sierra shared an excellent article from a co-worker of his on tracking down a big problem involving Exadata, multiple databases, I/O throttling, and several wait events like "cell smart table scan" and "cell single block physical read".  It's a great read not only because it shares how to walk through a problem like this, but it introduced several new tools starting with the My Oracle Support note that is included in the article, and has me more knowledgeable about what IORM is.