12c - 9i RAC on CentOS, Redhat, Oracle Linux, including VM PROJECTS: 12c Oracle RAC Architecture / Installation / Configuration / Administration: Nagios Enterprise Monitoring: Install, Configure, and Administer Nagios 4 for Enterprise monitoring of Servers, Databases , and Golden Gate. Oracle Disaster Plan using Oracle DataGaurd: ==================================== Replicate, Master 6 node Oracle RAC 11g Database in Philadelphia to sites in Chicago & Denver using Oracle Data Guard Physical and Logical Standbys. Instances in Denver created / used as Physical Standbys. Instances in Chicago configured as Logical Standby’s and used to beta test software releases. Chicago instance used Flashback database technology to accomplish this need. Oracle 11.2.0.1 Upgrade from 10.2.0.4 Using Oracle Golden Gate: ================================================== Configured, Implemented, and Performed a Zero-Downtime 11.2.0.1 Oracle Upgrade from 10.2.0.4 using Oracle Golden Gate Replication. Project spanned over 6 months and included 7 total Oracle Database instances.