Sunday, January 2, 2011

Tablespace critical threshold message

A DBA's main responsibility also include checking the tablespace space regularly,We can check this space each time with help of some useful views like dba_data_files provided by oracle.But this is tough some time whenever some developer load the data and suddenly you see the space almost occupied.So I decided to use the below script which will send me the alert mail whenever the space becomes 85% filled(critical threshold) which will be very much helpful to make sure the tablespace is having enough space.

The script is as given below:

Tablespace critical message when it becomes 85% occupied:


export PATH=/star/app/oracle/product/11.1.0/db_1/bin:/usr/sbin:/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/home/star/bin
export ORACLE_BASE=/star/app/oracle
export LD_LIBRARY_PATH=/star/app/oracle/product/11.1.0/db_1/lib:/lib:/usr/lib
export LD_LIBRARY_PATH=/ora11g/app/oracle/product/
export ORACLE_HOME=/star/app/oracle/product/11.1.0/db_1

MAILLIST=`cat /home/star/scripts/email.lst`

echo $1

CHKUP=`ps -ef | grep pmon | grep $1 | wc -l`

if [ "${CHKUP}" -eq 1 ]
echo "The Pmon Process is running on host"
echo " ****************************************************************" >> $LOGFILE
echo " " `date` " Pmon Proces is not found" >> $LOGFILE
echo " ****************************************************************" >> $LOGFILE
exit 0

export ORACLE_SID=$1

sqlplus -s "/ as sysdba" <WHENEVER SQLERROR EXIT SQL.SQLCODE
set echo off
set trimspool on
set trimout on
set verify off
set feedback off
column TABLESPACE_NAME format a18
column "%ocup" format a6
set lines 200
spool /tmp/chk_ts_$1.spl
SELECT total.tablespace_name tablespace_name,
ROUND (tot / 1024 / 1024) total,
ROUND ((tot - tot_l) / 1024 / 1024) occupied,
ROUND (tot_l / 1024 / 1024) remain,
ROUND (max_l / 1024 / 1024) max_extent,
ROUND ((tot - tot_l) * 100 / tot) || '%' AS "%ocup"
FROM (SELECT tablespace_name, SUM (BYTES) tot_l, MAX (BYTES) max_l
FROM dba_free_space
GROUP BY tablespace_name
SELECT d.tablespace_name,
f.bytes_free + f.bytes_used - NVL (p.bytes_used, 0) tot_l,
0 max_l
FROM SYS.v_\$temp_space_header f,
dba_temp_files d,
SYS.v_\$temp_extent_pool p
WHERE f.tablespace_name(+) = d.tablespace_name AND f.file_id(+) = d.file_id
AND p.file_id(+) = d.file_id) libre,
(SELECT tablespace_name, SUM (BYTES) tot
FROM dba_data_files
GROUP BY tablespace_name
(SELECT tablespace_name, SUM (BYTES) tot
FROM dba_temp_files
GROUP BY tablespace_name)) total,
dba_tablespaces dba_t
WHERE total.tablespace_name = libre.tablespace_name(+)
AND total.tablespace_name = dba_t.tablespace_name
AND ROUND (tot_l / 1024 / 1024) < 1024
AND ROUND ((tot - tot_l) * 100 / tot) > 85
AND dba_t.tablespace_name NOT IN ('RBS')
ORDER BY ROUND ((tot - tot_l) * 100 / tot) DESC;
spo off
if [ -s /tmp/chk_ts_$1.spl ]; then
cat /tmp/chk_ts_$1.spl | mailx -s "Critical : ($1 on Missing free space on tablespace of the database $1 -- Immediate Action" $MAILLIST
echo "---------------------------------------------------------------------------" >> $LOGFILE
echo `date` >> $LOGFILE
cat /tmp/chk_ts_$1.spl >> $LOGFILE
echo "---------------------------------------------------------------------------" >> $LOGFILE
rm -fr /tmp/chk_ts_$1.spl

Best regards,


1 comment:

  1. Hi Rafi,

    Appreciate for the good work!!
    I have run the script in one of my database environment but I could see this is not tracking the TEMP table space. Could you please help me out to find out how I will set an email alert notification if my TEMP tablespace reached to threshold value. Please gmail is

    Anyway thanks for the lovely blog and it really help beginner like me ..