Shell script to monitor asm diskgroup usage

 Shell script to monitor asm diskgroup usage

===========================================

REQUIREMENT: Write a shell script, which will trigger a mail alert, if the utilization of the asm diskgroup reached 90 percent. SOLUTION: 1. Below is the shell script. Make sure to update ORACLE_HOME, ORACLE_SID inside the shell script. cat /export/home/oracle/asm_dg.sh


export ORACLE_HOME=/oracle/app/oracle/product/12.1.0.2/dbhome_1

export ORACLE_SID=PRODDB1

export PATH=$ORACLE_HOME/bin:$PATH

logfile=/export/home/oracle/asm_dg.log

sqlplus -s "/as sysdba" > /dev/null << EOF spool $logfile

SET LINESIZE 150

SET PAGESIZE 9999

SET VERIFY off

COLUMN group_name

FORMAT a25 HEAD 'DISKGROUP_NAME'

COLUMN state FORMAT a11 HEAD 'STATE'

COLUMN type FORMAT a6 HEAD 'TYPE'

COLUMN total_mb FORMAT 999,999,999 HEAD 'TOTAL SIZE(GB)'

COLUMN free_mb FORMAT 999,999,999 HEAD 'FREE SIZE (GB)'

COLUMN used_mb FORMAT 999,999,999 HEAD 'USED SIZE (GB)'

COLUMN pct_used FORMAT 999.99 HEAD 'PERCENTAGE USED'

 

SELECT distinct name group_name , state state , type type ,

round(total_mb/1024) TOTAL_GB , round(free_mb/1024) free_gb ,

round((total_mb - free_mb) / 1024) used_gb ,

round((1- (free_mb / total_mb))*100, 2) pct_used from

v$asm_diskgroup where round((1- (free_mb / total_mb))*100, 2) > 90 ORDER BY name;

spool off

exit

EOF

count=`cat $logfile|wc -l`

#echo $count

if [ $count  -ge 4 ];

then

  mailx -s "ASM DISKGROUP REACHED 90% UTILIZATION" support@dbaclass.com < $logfile

fi

 


. Give proper permission:


chmod 755 /export/home/oracle/asm_dg.sh


Configure in crontab:


0,15,30,45 * * * * /export/home/oracle/asm_dg.sh

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