My Oracle Support Banner

EM 13.2 False Alerts on Ora.diskmon and Ora.ons "ora.diskmon has 1 instances in OFFLINE State" (Doc ID 2396133.1)

Last updated on NOVEMBER 30, 2020

Applies to:

Enterprise Manager for Oracle Database - Version 13.2.0.0.0 and later
Information in this document applies to any platform.

Symptoms

After upgrading the EM from 12c to 13.2, HAS targets generating the following alerts.

Host=<HOSTNAME>
Target type=Oracle High Availability Service
Target name=has_<HOSTNAME>
Categories=Error
Message=ora.diskmon has 1 instances in OFFLINE State
Severity=Critical

For 12c releases, we can use the steps given in the following document to avoid these alerts.

EM 12c: How to Disable Diskmon and ONS Monitor from Enterprise Manager 12c Cloud Control to Stop Notifications: Message=ora.diskmon has 1 instances in OFFLINE State (Doc ID 2060296.1)

But these steps do not help for 13.2

Changes

 

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.