del_archivelog

#!/usr/bin/env bash                         

# 

# INTRO : The script for delete physical standby applied archivelog.

#         Please set ur environment variables before use it.

#         Please execute the script on physical standby site.

#

# USAGE : ./del_archivelog.sh                                                            

#                                                                     

# TEST  : This script has been successfully tested on these platforms:                                                                     

#         Linux 

#         Physical standby

#         Oracle Database 10gR2,11gR2,Include RAC                            

#                                                       

# NOTE  : Please test this script in ur development environment 

#         before attempting to run it in production.                                     

# =================================================================================

 

#----------------------------------------------------------------------------------

###setup environment variables

export ORACLE_HOME=/oracle/app/oracle/product/11.2.0/db_1

export ORACLE_SID=standby

export PATH=$ORACLE_HOME/bin:$PATH

#export ARCHIVE_DIR=+DATA/standby/archivelog

export LOG_FILE=$HOME/scripts/logs/del_archive.log

#----------------------------------------------------------------------------------

 

###determine user 

if [ `whoami` != 'oracle' ];then

echo "Warning: Please use oracle execute.">>$LOG_FILE

exit 99

fi

 

###define archivelog sequence will be deleted

sqlplus -s / as sysdba << EOF > tmp.log

set lines 100 feedback off echo off heading off;

select thread#,max(sequence#) from v\$archived_log where applied='YES' group by thread# order by thread#;

EOF

 

MAXLINE=`cat tmp.log|wc -l`

 

for (( i=1;i<$MAXLINE;i++ )); do

 

i=$(( i + 1 ))

THREAD=`sed -n "$i,$i"p tmp.log|awk -F' ' '{print $1}'`

MAXSEQ=`sed -n "$i,$i"p tmp.log|awk -F' ' '{print $2}'`

 

###Retains the most recent five Archive

MAXSEQ=$(( $MAXSEQ - 5 ))

 

###Delete physical standby applied archivelog

echo "****************************************************************************" >> $LOG_FILE

echo ">>> Begin deleting applied archivelogs : `date` <<<">>$LOG_FILE

 

i=$(( i - 1 ))

 

rman target / <<EOF >> $LOG_FILE

##catalog start with '$ARCHIVE_DIR' noprompt;

delete noprompt archivelog until sequence $MAXSEQ thread $THREAD;

EOF

 

echo >> $LOG_FILE

echo ">>> End delete applied archivelogs : `date` <<<">>$LOG_FILE

 

echo "****************************************************************************" >> $LOG_FILE

echo >> $LOG_FILE

 

done

 

rm -f tmp.log