Review the guidelines and restrictions for using earlier Oracle Database releases with Oracle Grid Infrastructure 19c installations.

• General Restrictions for Using Earlier Oracle Database Releases
  You can use Oracle Database 12c Release 1 and Release 2 and Oracle Database 11g Release 2 with Oracle Grid Infrastructure 12c Release 2 (12.2).
• Configuring Earlier Release Oracle Database on Oracle ACFS
  Review this information to configure a 11.2 release Oracle Database on Oracle Automatic Storage Management Cluster File System (Oracle ACFS).
• Using ASMCA to Administer Disk Groups for Earlier Database Releases
  Starting with Oracle Grid Infrastructure 11g Release 2, Oracle ASM is installed as part of an Oracle Grid Infrastructure installation, with Oracle Clusterware.
• Using the Correct LSNRCTL Commands
  Do not attempt to use the lsnrctl programs from Oracle home locations for earlier releases because they cannot be used with the new release.
• Starting and Stopping Cluster Nodes or Oracle Clusterware Resources
  Before shutting down Oracle Clusterware 19c, if you have an Oracle Database 12c Release 1 (12.1) or Oracle Database 11g Release 2 (11.2) database registered with Oracle Clusterware 19c, then you must perform additional steps to ensure the resources are stopped.