I have an OEM 11g to OEM 12c Upgrade with Exadata Targets
Documentation indicates that keeping the Exadata Target data is not kept.
2.10.7 Upgrading Oracle Exadata Targets Oracle Exadata targets on your existing Enterprise Manager 10g Grid Control Release 5 (10.2.0.5) or Enterprise Manager 11g Grid Control Release 1 (184.108.40.206) are not upgraded by default. You must manually discover them in Enterprise Manager Cloud Control. As a result, you will lose all historical data related to these targets.
Has anyone been able to work around this any ideas are appreciated.