DATABASE:AWSDLGNVAL007T.jnj.com        : STATUS: Failed to connect to database instance: Failed to connect: java.sql.SQLRecoverableException: IO Error: Got minu
system has down due to maintenance. now system is up and working fine. since closing the ticket. 
 
SQL> SELECT INSTANCE_NAME, STATUS, DATABASE_STATUS FROM V$INSTANCE; 
 
INSTANCE_NAME    STATUS       DATABASE_STATUS 
---------------- ------------ ----------------- 
J5T              OPEN         ACTIVE