Creating a Backup Schedule

Being a DBA it is your key responsibility to set a proper backup strategy. Today we will see how we can schedule backup :

Step 1 : Create script to take backup , Here I have created linux shell script

[oracle@prod-18c u01]$ cat bkp_schedule.sh 
rman target "'/ as sysbackup'" > /u01/backup_`date +%d_%m`.log  <<EOF
backup incremental level 1 device type disk tag '%Tag' database;
backup device type disk tag '%Tag'archivelog all not backed up
delete input;
run {
allocate channel backup_everyday type disk maxpiecesize 250M;
backup tag '%Tag' current controlfile;
release channel backup_everyday;
}
delete noprompt obsolete
exit;
EOF
echo "End of my_sched_bkup.sh" >> /u01/backup_`date +%d_%m`.log
exit
[oracle@prod-18c u01]$

Check above backup script , I have used quite a few RMAN parameters to make a proper backup script like maxpiecesize , backup of current controlfile , deletion of obsolete backups etc

Lets run this file to check it works correctly.

[oracle@prod-18c u01]$ ./bkp_schedule.sh

Let’s check output in log file , as we can see in backup script , backup log will be restored in /u01 directory with current date.

So go to /u01 directory and check backup log.

[oracle@prod-18c ~]$ date
Wed May 22 23:00:15 IST 2019
[oracle@prod-18c ~]$ cd /u01
[oracle@prod-18c u01]$ 
[oracle@prod-18c u01]$ cat backup_22_05.log 

Recovery Manager: Release 12.2.0.1.0 - Production on Wed May 22 23:56:21 2019

Copyright (c) 1982, 2017, Oracle and/or its affiliates.  All rights reserved.

connected to target database: ORCL1 (DBID=1383488253)

RMAN> 
Starting backup at 22-MAY-19
using target database control file instead of re
overy catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=72 device type=DISK
channel ORA_DISK_1: starting incremental level 1 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00001 name=/u01/app/oracle/oradata/ORCL1/datafile/o1_mf_system_g56bzr71_.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/ORCL1/datafile/o1_mf_sysaux_g56c4gwz_.dbf
input datafile file number=00004 name=/u01/app/oracle/oradata/ORCL1/datafile/o1_mf_undotbs1_g56c8082_.dbf
input datafile file number=00007 name=/u01/app/oracle/oradata/ORCL1/datafile/o1_mf_users_g56c8cf3_.dbf
channel ORA_DISK_1: starting piece 1 at 22-MAY-19
channel ORA_DISK_1: finished piece 1 at 22-MAY-19
piece handle=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/backupset/2019_05_22/o1_mf_nnnd1__TAG_ggc52s3s_.bkp tag=%TAG comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:45
channel ORA_DISK_1: starting incremental level 1 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00010 name=/u01/app/oracle/oradata/ORCL1/80C5B383246F06B2E0531201A8C09E95/datafile/o1_mf_sysaux_g56fjoqy_.dbf
input datafile file number=00009 name=/u01/app/oracle/oradata/ORCL1/80C5B383246F06B2E0531201A8C09E95/datafile/o1_mf_system_g56fjomp_.dbf
input datafile file number=00011 name=/u01/app/oracle/oradata/ORCL1/80C5B383246F06B2E0531201A8C09E95/datafile/o1_mf_undotbs1_g56fjoqz_.dbf
input datafile file number=00019 name=/u01/app/oracle/oradata/ORCL1/80C5B383246F06B2E0531201A8C09E95/datafile/o1_mf_tsa_g60sbrnw_.dbf
input datafile file number=00020 name=/u01/app/oracle/oradata/ORCL1/80C5B383246F06B2E0531201A8C09E95/datafile/o1_mf_tsb_g60scc47_.dbf
input datafile file number=00021 name=/u01/app/oracle/oradata/ORCL1/80C5B383246F06B2E0531201A8C09E95/datafile/o1_mf_tsc_g60scts8_.dbf
input datafile file number=00022 name=/u01/app/oracle/oradata/ORCL1/80C5B383246F06B2E0531201A8C09E95/datafile/o1_mf_tsd_g60sdjw8_.dbf
input datafile file number=00012 name=/u01/app/oracle/oradata/ORCL1/80C5B383246F06B2E0531201A8C09E95/datafile/o1_mf_users_g56fmk1x_.dbf
channel ORA_DISK_1: starting piece 1 at 22-MAY-19
channel ORA_DISK_1: finished piece 1 at 22-MAY-19
piece handle=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/80C5B383246F06B2E0531201A8C09E95/backupset/2019_05_22/o1_mf_nnnd1__TAG_ggc547cn_.bkp tag=%TAG comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:25
channel ORA_DISK_1: starting incremental level 1 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00014 name=/u01/app/oracle/oradata/ORCL1/8183F1693BDD1468E0531201A8C02271/datafile/o1_mf_sysaux_g5zcg9k5_.dbf
input datafile file number=00013 name=/u01/app/oracle/oradata/ORCL1/8183F1693BDD1468E0531201A8C02271/datafile/o1_mf_system_g5zcg9hv_.dbf
input datafile file number=00015 name=/u01/app/oracle/oradata/ORCL1/8183F1693BDD1468E0531201A8C02271/datafile/o1_mf_undotbs1_g5zcg9k7_.dbf
channel ORA_DISK_1: starting piece 1 at 22-MAY-19
channel ORA_DISK_1: finished piece 1 at 22-MAY-19
piece handle=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/8183F1693BDD1468E0531201A8C02271/backupset/2019_05_22/o1_mf_nnnd1__TAG_ggc550yj_.bkp tag=%TAG comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:26
channel ORA_DISK_1: starting incremental level 1 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00006 name=/u01/app/oracle/oradata/ORCL1/datafile/o1_mf_sysaux_g56ch5h5_.dbf
skipping datafile 00006 because it has not changed
input datafile file number=00005 name=/u01/app/oracle/oradata/ORCL1/datafile/o1_mf_system_g56ch5lh_.dbf
skipping datafile 00005 because it has not changed
input datafile file number=00008 name=/u01/app/oracle/oradata/ORCL1/datafile/o1_mf_undotbs1_g56ch5o2_.dbf
skipping datafile 00008 because it has not changed
channel ORA_DISK_1: backup cancelled because all files were skipped
channel ORA_DISK_1: starting incremental level 1 datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00017 name=/u01/app/oracle/oradata/ORCL1/818DC149F5282394E0531201A8C0C446/datafile/o1_mf_sysaux_g60nm8r7_.dbf
skipping datafile 00017 because it has not changed
input datafile file number=00016 name=/u01/app/oracle/oradata/ORCL1/818DC149F5282394E0531201A8C0C446/datafile/o1_mf_system_g60nm8qh_.dbf
skipping datafile 00016 because it has not changed
input datafile file number=00018 name=/u01/app/oracle/oradata/ORCL1/818DC149F5282394E0531201A8C0C446/datafile/o1_mf_undotbs1_g60nm8r8_.dbf
skipping datafile 00018 because it has not changed
channel ORA_DISK_1: backup cancelled because all files were skipped
Finished backup at 22-MAY-19

Starting Control File and SPFILE Autobackup at 22-MAY-19
piece handle=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/autobackup/2019_05_22/o1_mf_s_1008979094_ggc560xf_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 22-MAY-19

RMAN> 2> 
Starting backup at 22-MAY-19
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=8 RECID=7 STAMP=1008804029
input archived log thread=1 sequence=9 RECID=8 STAMP=1008963480
input archived log thread=1 sequence=10 RECID=9 STAMP=1008976635
input archived log thread=1 sequence=11 RECID=10 STAMP=1008979108
channel ORA_DISK_1: starting piece 1 at 22-MAY-19
channel ORA_DISK_1: finished piece 1 at 22-MAY-19
piece handle=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/backupset/2019_05_22/o1_mf_annnn__TAG_ggc56grn_.bkp tag=%TAG comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:15
channel ORA_DISK_1: deleting archived log(s)
archived log file name=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/archivelog/2019_05_20/o1_mf_1_8_gg5t6zf2_.arc RECID=7 STAMP=1008804029
archived log file name=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/archivelog/2019_05_22/o1_mf_1_9_ggboxyvf_.arc RECID=8 STAMP=1008963480
archived log file name=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/archivelog/2019_05_22/o1_mf_1_10_ggc2s2os_.arc RECID=9 STAMP=1008976635
archived log file name=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/archivelog/2019_05_22/o1_mf_1_11_ggc56bnn_.arc RECID=10 STAMP=1008979108
Finished backup at 22-MAY-19

Starting Control File and SPFILE Autobackup at 22-MAY-19
piece handle=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/autobackup/2019_05_22/o1_mf_s_1008979127_ggc57048_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 22-MAY-19

RMAN> 2> 3> 4> 5> 
released channel: ORA_DISK_1
allocated channel: backup_everyday
channel backup_everyday: SID=72 device type=DISK

Starting backup at 22-MAY-19
channel backup_everyday: starting full datafile backup set
channel backup_everyday: specifying datafile(s) in backup set
including current control file in backup set
channel backup_everyday: starting piece 1 at 22-MAY-19
channel backup_everyday: finished piece 1 at 22-MAY-19
piece handle=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/backupset/2019_05_22/o1_mf_ncnnf__TAG_ggc579rx_.bkp tag=%TAG comment=NONE
channel backup_everyday: backup set complete, elapsed time: 00:00:01
Finished backup at 22-MAY-19

Starting Control File and SPFILE Autobackup at 22-MAY-19
piece handle=/u01/app/oracle/fast_recovery_area/orcl1/ORCL1/autobackup/2019_05_22/o1_mf_s_1008979139_ggc57dov_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 22-MAY-19

released channel: backup_everyday

RMAN> 

Recovery Manager complete.
End of my_sched_bkup.sh
[oracle@prod-18c u01]$

Step 2 : Schedule backup , either we can schedule it using Operating system scheduler or Oracle Database Scheduler. Here I have created a job to schedule backup : 

SQL> begin
  2  dbms_scheduler.create_job(
job_name => 'bkp_schedule',
job_type => 'EXECUTABLE',
job_action => '/u01/bkp_schedule.sh',
start_date => '22-MAY-18 11:52:00PM',
repeat_interval => 'FREQ=DAILY',
enabled => true,
auto_drop => false,
comments => 'backup schedule');
end;
/  3    4    5    6    7    8    9   10   11   12  

PL/SQL procedure successfully completed.

Here I have created the job which will run daily from today onwards. My job schedule name is BKP_SCHEDULE . Let’s check in Data Dictionary views that it is scheduled or not.

SQL> col job_name for a20
SQL> SELECT JOB_NAME, ENABLED, STATE, RUN_COUNT, FAILURE_COUNT FROM DBA_SCHEDULER_JOBS WHERE JOB_NAME = 'BKP_SCHEDULE';

JOB_NAME	     ENABL STATE	    RUN_COUNT FAILURE_COUNT
-------------------- ----- --------------- ---------- -------------
BKP_SCHEDULE	     TRUE  SCHEDULED		    0		  0

SQL>

We can see here it is scheduled.

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About The Author

I am 11g OCP and OCE(RAC and GRID Infrastructure). Currently working as Oracle Database Administrator at _VOIS and Blogger (Freelancer) at Oracle-help . Previously I worked with Acute Informatics pvt ltd. and Mobile Tornado where I handled Banking Data Migration , created DR using log shipping , Golden Gate and Data Guard. I have experience of handling planned and unplanned DB role switchover and failovers and monitoring and troubleshooting Database Performance. Key skills : RMAN , GG , DG , RAC , Virtualization in OVMM.I have experience in Banking and Telecom domain. Reach me at : https://www.linkedin.com/in/jagruti-jasleniya

Comments

  1. Reply
    Ravin Maharaj

    Hi, What if I have more than one database to backup? Is it possible to create a generic shell script where I can pass the Oracle SID through to the shell script and then schedule the backup via dbms_scheduler

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