You install "Oracle Grid Infrastructure for a standalone server" on a host on which the orcl1 and orcl2 databases both have their instances running.

Both orcl1 and orcl2 are automatically added to the Oracle Restart configuration. 

All database listeners running from the database home are automatically added to the Oracle Restart configuration. 

The srvct1 add database command must be used to add orcl1 and orcl2 to the Oracle Restart configuration. 

The crsct1 start has command must be used to start software services for Oracle Automatic Storage Management (ASM) after the "Oracle Grid Infrastructure for a standalone server" installation is complete. 

All databases subsequently created by using the Database Configuration Assistant (DBCA) are automatically added to the Oracle Restart configuration.