[FATAL] [DBT-11211] 19c DBCA: The AMM option is not allowed while the physical memory is greater than 4GB

This article explains the steps to change the Automatic Memory Management option to the Automatic SHARED Memory Management option within the response File.

1. Oracle Error “physical memory is greater than 4GB”:

While installing an Oracle database 19c, on Oracle Linux 7 and while the physical memory is greater than 4GB.

$ /u01/app/oracle/product/ -silent -createDatabase -responseFile /tmp/dbca19c.rsp

[FATAL] [DBT-11211] The Automatic Memory Management option is not allowed when the total physical memory is greater than 4GB.
CAUSE: The current total physical memory is 11GB.

2. Solution: Change Oracle memory management from AMM to ASMM in the response file:

Step 1: Update the initialization parameters:





Step 2: Comment the memory Percentage




# memoryPercentage=40

Step 3: Update the option automatic Memory Management:





Step 4: Run the creation steps again.

$ /u01/app/oracle/product/ -silent -createDatabase -responseFile /tmp/dbca19c.rsp

[WARNING] [DBT-09251] The listener configuration is not selected for the database. EM DB Express URL will not be accessible.
CAUSE: The database should be registered with a listener in order to access the EM DB Express URL.
ACTION: Select a listener to be registered or created with the database.
Prepare for db operation
10% complete
Copying database files
40% complete
Creating and starting Oracle instance
42% complete
46% complete
50% complete
54% complete
58% complete
60% complete
Completing Database Creation
66% complete
70% complete
Executing Post Configuration Actions
100% complete
Database creation complete. For details check the logfiles at:
Database Information:
Global Database Name:orcl
System Identifier(SID):orcl
Look at the log file "/u01/app/oracle/cfgtoollogs/dbca/orcl/orcl.log" for further details.


Oracle 19c: Oracle does not support AMM management when the physical memogy is more than 4Gb.

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