RDA 4.11 is out, with a couple of new features. “Oracle Database Diagnostics Collector” (ORADDC) is one of those. It allows you to easily activate all kinds of traces, dumps, or stack collections.

Once RDA 4.11 installed, run ./rda.pl -T oraddc to collect whatever you need. The tool will guide you. To learn more about its features, you can display its man page: run ./rda.pl -M oraddc or ./rda.pl -M.

This may become one of the most used RDA modules for Oracle Support Services and Oracle database administrators stuck in different situations. For now, let’s start with a more basic question: “How to leverage RDA in a RAC environment ?”

About RDA

RDA (Remote Diagnostic Agent) is one of the primary tools used by Oracle Support Services to diagnose any problem related to the Oracle stacks (from the Virtual Machine to the CRM). You can leverage this tool for your own needs and to speed up your problem resolution.

Using RDA before you install the Clusterware

Installing the Oracle Clusterware is an error-prone process, and in most cases, the errors come from unmet prerequisites, Fortunately, the CVU (Cluster Verification Utility) helps diagnose any problem in the initial setup you’ve performed. The best way to use it is probably to download the latest version and to validate the prerequisites according to the release you want to install. Once you’ve downloaded and unzipped the latest release from OTN, you can for example check if the prerequisites are met before you install Clusterware, with a command like the one below: (more…)