EM 12c: Patch Plan Validation in Enterprise Manager 12c Cloud Control Fails with Error: PREREQ_MESG: There are few invalid instances monitored by Enterprise Manager and few instances not discovered

(Doc ID 2351096.1)

Last updated on JANUARY 26, 2018

Applies to:

Enterprise Manager for Oracle Database - Version 12.1.0.5.0 and later
Information in this document applies to any platform.

Symptoms

A Patch Plan is created in Enterprise Manager 12.1.0.5 Cloud Control on Grid Infrastructure (GI) and RAC Database targets.
Patch Plan Validation fails with prerequisite check errors:

Changes

Cause

	Sign In with your My Oracle Support account
	Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms