Script To Schedule RMAN Backups In Crontab
vi rman_full_bkp.sh
# $Header: rman_full_bkp.sh
# #################################################
# Script to be used on the crontab to schedule an RMAN Full Backup
# ################################################
# ###############################################
# VARIABLES To be Modified by the user to match the Environment:
# ###############################################
# INSTANCE Name: [Replace ${ORACLE_SID} with your instance SID]
ORACLE_SID=MQPROD
# ORACLE_HOME Location: [Replace ${ORACLE_HOME} with the right ORACLE_HOME path]
ORACLE_HOME=/u01/app/oracle/product/12.1.0/dbhome_1
# Backup Location: [Replace /backup/rmanfull with the backup location path]
BACKUPLOC=/u01/app/oracle/example_backups
# Backup LOG location:
RMANLOG=/u01/app/oracle/example_backups/rmanfull.log
# COMPRESSED BACKUP option:[Y|N] [Default ENABLED]
COMPRESSION=Y
# Perform Maintenance based on below Backup & Archivelog Retention: [Y|N] [Default DISABLED]
MAINTENANCEFLAG=N
# Backup Retention "In Days": [Backups older than this retention will be deleted]
BKP_RETENTION=7
# Archives Deletion "In Days": [Archivelogs older than this retention will be deleted]
ARCH_RETENTION=7
# ##################
# GENERIC VARIABLES: [Can be left without modification]
# ##################
# MAX BACKUP Piece Size: [Must be BIGGER than the size of the biggest datafile in the database]
MAX_BKP_PIECE_SIZE=1g
# Show the full DATE and TIME details in the backup log:
NLS_DATE_FORMAT='DD-Mon-YYYY HH24:MI:SS'
export ORACLE_SID
export ORACLE_HOME
export BACKUPLOC
export COMPRESSION
export BKP_RETENTION
export ARCH_RETENTION
export MAX_BKP_PIECE_SIZE
export RMANLOG
export NLS_DATE_FORMAT
export MAINTENANCEFLAG
# Check the selected COMPRESSION option:
case ${COMPRESSION} in
Y|y|YES|Yes|yes|ON|on)
COMPRESSED_BKP="AS COMPRESSED BACKUPSET"
export COMPRESSED_BKP
;;
*)
COMPRESSED_BKP=""
export COMPRESSED_BKP
;;
esac
# Check the selected MAINTENANCE option:
case ${MAINTENANCEFLAG} in
Y|y|YES|Yes|yes|ON|on)
HASH_MAINT=""
export HASH_MAINT
;;
*)
HASH_MAINT="#"
export COMPRESSED_BKP
;;
esac
# Append the date to the backup log for each script execution:
echo "----------------------------" >> ${RMANLOG}
date >> ${RMANLOG}
echo "----------------------------" >> ${RMANLOG}
# ###################
# RMAN SCRIPT Section:
# ###################
${ORACLE_HOME}/bin/rman target / msglog=${RMANLOG} <<EOF
# Configuration Section:
# ---------------------
${HASH_MAINT}CONFIGURE BACKUP OPTIMIZATION ON;
${HASH_MAINT}CONFIGURE CONTROLFILE AUTOBACKUP ON;
${HASH_MAINT}CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '${BACKUPLOC}/%F';
${HASH_MAINT}CONFIGURE SNAPSHOT CONTROLFILE NAME TO '${ORACLE_HOME}/dbs/snapcf_${ORACLE_SID}.f';
## Avoid Deleting archivelogs NOT yet applied on the standby: [When FORCE is not used]
#CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON ALL STANDBY;
# Maintenance Section:
# -------------------
## Crosscheck backups/copied to check for expired backups which are physically not available on the media:
${HASH_MAINT}crosscheck backup completed before 'sysdate-${BKP_RETENTION}' device type disk;
${HASH_MAINT}crosscheck copy completed before 'sysdate-${BKP_RETENTION}' device type disk;
## Report & Delete Obsolete backups which don't meet the RETENTION POLICY:
${HASH_MAINT}REPORT OBSOLETE RECOVERY WINDOW OF ${BKP_RETENTION} DAYS device type disk;
${HASH_MAINT}DELETE NOPROMPT OBSOLETE RECOVERY WINDOW OF ${BKP_RETENTION} DAYS device type disk;
## Delete All EXPIRED backups/copies which are not physically available:
${HASH_MAINT}DELETE NOPROMPT EXPIRED BACKUP COMPLETED BEFORE 'sysdate-${BKP_RETENTION}' device type disk;
${HASH_MAINT}DELETE NOPROMPT EXPIRED COPY COMPLETED BEFORE 'sysdate-${BKP_RETENTION}' device type disk;
## Crosscheck Archivelogs to avoid the backup failure:
${HASH_MAINT}CHANGE ARCHIVELOG ALL CROSSCHECK;
${HASH_MAINT}DELETE NOPROMPT EXPIRED ARCHIVELOG ALL;
## Delete Archivelogs older than ARCH_RETENTION days:
${HASH_MAINT}DELETE NOPROMPT archivelog all completed before 'sysdate -${ARCH_RETENTION}';
# Full Backup Script starts here: [Compressed+Controlfile+Archives]
# ------------------------------
run{
allocate channel F1 type disk;
allocate channel F2 type disk;
sql 'alter system archive log current';
BACKUP ${COMPRESSED_BKP}
#MAXSETSIZE ${MAX_BKP_PIECE_SIZE}
NOT BACKED UP SINCE TIME 'SYSDATE-2/24'
INCREMENTAL LEVEL=0
FORMAT '${BACKUPLOC}/%d_%t_%s_%p.bkp'
FILESPERSET 100
TAG='FULLBKP'
DATABASE include current controlfile PLUS ARCHIVELOG NOT BACKED UP SINCE TIME 'SYSDATE-2/24';
## Backup the controlfile separately:
BACKUP ${COMPRESSED_BKP} CURRENT CONTROLFILE FORMAT '${BACKUPLOC}/CONTROLFILE_%d_%I_%t_%s_%p.bkp' TAG='CONTROLFILE_BKP' REUSE ;
## Trace backup of Controlfile & SPFILE:
SQL "ALTER DATABASE BACKUP CONTROLFILE TO TRACE AS ''${BACKUPLOC}/controlfile.trc'' REUSE";
SQL "CREATE PFILE=''${BACKUPLOC}/init${ORACLE_SID}.ora'' FROM SPFILE";
}
EOF
34 12 * * * "/home/oracle/rman_full_bkp.sh" > /tmp/rmanarch.log
Tue Oct 27 12:32:39 IST 2020
