Initialize all flagged Oracle database instances using dbstart (Linux systems)

Procedure Log on to the operating system as oracle, or switch user to oracle by typing the following command, followed by the oracle password: Copy su - oracle Manually set the Oracle environment by typing one of the following commands: Copy export ORACLE_HOME=Oracle-home-path export PATH=$PATH:$ORACLE_HOME/bin Start all Oracle database instances flagged in the oratab file by typing the following command: Copy $ORACLE_HOME/bin/dbstart Verify that the database processes are running by typing the following command: Copy ps -ef | grep ora The following process information is displayed for each database instance: Copy oracle 1830 1 80 date time ora_dbw0_tc oracle 1831 1 80 date time ora_pmon_tc oracle 1832 1 80 date time ora_lgwr_tc oracle 1833 1 80 date time ora_smon_tc oracle 1832 1 80 date time ora_reco_tc oracle 1833 1 80 date time ora_ckpt_tc Replace date and time with the operating system date and time that the database process was started. This example shows the background database processes associated with an Oracle instance called tc.