Review the following guidelines before upgrading to Oracle Exalytics Release 2.2:
Ensure that you are currently on Oracle Exalytics Release 2 (Oracle Exalytics Base Image 2.0.0.0.el6).
Before upgrading, ensure that you back up your current installation, configuration files, and any user-specific artifacts, and stop all applicable services
If you have installed Oracle Enterprise Performance Management components on the Exalytics Machine, stop all Enterprise Performance Management services before upgrading. Also, ensure that you start all services after upgrading. For more information, see "Chapter 12, Starting and Stopping EPM System Products" in Oracle Enterprise Performance Management System Installation and Configuration Guide Release 11.1.2.3 at the following location:
http://docs.oracle.com/cd/E40248_01/epm.1112/epm_install.pdf
When upgrading from Oracle Exalytics Oracle Exalytics Release 2.1, delete aggregates in Oracle TimesTen using the nqcmd utility. For more information, see "Creating and Persisting Aggregates for Oracle BI Server Queries" in Metadata Repository Builder's Guide for Oracle Business Intelligence Enterprise Edition.
For late-breaking information, see Oracle Exalytics In-Memory Machine Release Notes for Linux.