user13346877 wrote:Jaise, that means not using this forum, but filing a SR (Service Request) asap with Oracle Support (https://support.oracle.com/).
It is very critical as it directly impacts our business. Any help or hints would be appreciated.
In normal time, even though the SGA max size is 10G, oracle takes almost 32G memory and free memory is only in MBs say 112MB free.Probably that's you starting point for investigation. Do you know what oracle process is consuming most of the memory apart from RMAN? JDBC?