Announcement: High Availability Metric is Deprecated beginning with Enterprise Manager Cloud Control
The configuration metric High Availability (ha_rman_config) has been deprecated. A new metric High Availability (RMAN Configuration) (ha_rman_configuration) has been added that enhances the original configuration metric with additional information about the container database and the pluggable databases within the container.
For further details, refer to this document:
Announcement: High Availability (ha_rman_config) Metric is Deprecated in Enterprise Manager Cloud Control 13.5 (Doc ID 2897759.1)