How to verify that oracle service is up

Question

How to verify that Oracle server is up?
how to verify that Oracle db is up (or online??)
thx

Answer 1

Hi,
This Sun ksh command will show the Oracle processes for your instance:
ps -ef|grep $ORACLE_SID|grep -v grep
Here the Sun script that I use to check if your database is running:
check_stat=`ps -ef|grep ${ORACLE_SID}|grep pmon|wc -l`;
oracle_num=`expr $check_stat`
if [ $oracle_num -lt 1 ]
then
exit 0
fi
# Test to see if Oracle is accepting connections
$ORACLE_HOME/bin/sqlplus -s /<<! > /tmp/check_$ORACLE_SID.ora
select * from v\$database;
exit
# If not, exit and e-mail . . .
check_stat=`cat /tmp/check_$ORACLE_SID.ora|grep -i error|wc -l`;
oracle_num=`expr $check_stat`
if [ $oracle_num -ne 0 ]
then
mailx -s "$ORACLE_SID is down!" [email protected]
exit 16
fi
If you are not familiar with UNIX scripting, there are many script collections that you can use:
http://www.google.com/search?&q=oracle+script+collection
To learn UNIX scripting, Jon Emmons (Life after Coffee blog) has a book of Oracle Linux/UNIX scripts:
http://www.rampant-books.com/book_2005_1_linux_commands.htm