Thanks to Tamzin Oscroft for this RDA write up!
Remote Diagnostic Agent (RDA) is a data collection framework, driven
from the command line, which can be used to gather diagnostic
information related to Oracle products and their environments. This data
is used to assist in problem diagnosis. Full information on RDA is
available in Remote Diagnostic Agent (RDA) – Getting Started (DocID 314422.1).
RDA 8.15 contains further improvements to the Coherence module, as
well as improved collections for Oracle Identity Manager, Hyperion, and
Business Intelligence. There is also enhanced handling of ORACLE Homes
read from the inventory. The Health Check/Validation Engine (HCVE)
rulesets have been updated to incorporate the most recent HP patches and
the ORA-600 Tool has been updated with further reference notes.
Complete details for this release are available in RDA Release Notes (Doc ID 414970.1).
This release of RDA is bundled with the 2.11.30 release of Diagnostic
Assistant (DA). The DA tool is a command line interface framework
designed to simplify and standardize the end user’s experience with
various diagnostic tools, providing a common lightweight extensible
interface to multiple collection tools (ADR, RDA, OCM, Explorer, etc).
DA packages can also work with Oracle applications (JDE EnterpriseOne,
Siebel, PeopleSoft) as verifiers, providing a basic Java interface to
facilitate the user’s data collection.
For more information about DA functionalities, refer to Diagnostic Assistant: Information Center (Doc ID 201804.2)