The term “best practice” has long drawn the ire of database professionals. As the saying goes, “They are only best practices until a better one comes along.” The My Oracle Support site contains several exhaustive notes regarding best practices on Exadata. The central “Oracle Exadata Best Practices” support note links to 12 other notes that include best practices for running an Exadata environment. These notes cover many different aspects of managing an Exadata environment: setup, performance, high availability, migration, OLTP, data warehouse, and more. Keeping up with the changes would be a daunting task (MOS note #1274318.1, “Oracle Sun Database Machine Setup/Configuration Best Practices” consumes an astounding 127 pages when printed out). Thankfully, Oracle provides a standard health-check utility, known as exachk, which checks your Exadata system against all of these recommendations.