cross-checking of backup and delete obsolete;

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• RMAN backup and cross-checking script

  Hello
  
  I just joined a new company this week. As would any s/n, I was going just through the RMAN backup scripts used in the new environment.
  Here we run weekly RMAN backup complete for some of the databases that I am responsible for managing. The script and schedules are as follows.
  
  Every Sunday from 21:00, we organize a weekly job overlap
  
  Connect target username/pwd@DBNAME
  Connect catalog username/pwd@DBNAME
  
  Run {}
  CROSS-CHECKING OF BACKUP;
  DUPLICATION OF COPY;
  OVERLAP BACKUPSET;
  OVERLAP ARCHIVELOG ALL;
  DELETE NOPROMPT OBSOLETE;
  }
  
  Every Sunday from 9:30, we run the RMAN backup command which is
  
  Connect target username/pwd@DBNAME
  Connect catalog username/pwd@DBNAME
  
  run
  {
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  SQL 'alter system archive log current';
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  SQL 'alter system archive log current';
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  DELETE ARCHIVELOG ALL COMPLETED BEFORE ' SYSDATE-15';
  }
  
  
  A database that I will handle has been set up just over a week before I join.
  28 FEV 21:00 - no set of backup/copy/backup of overlap. I hope it will be cuts across all archive logs available in the database. No obsolete backup/copy/backup/archivelogs to remove.
  28 FEV 21:30 - sets the retention policy at 7 days, full backup of database backup and backup all archivelogs (sysdate-8). No newspaper archive to remove the database was created (migrated) less than 15 days back.
  
  7 March 21:00 - contre-vérifie the backupset (taking the 28 fev 21:30). No backup/copy of overlap.
  Question 1: Is there a backup obsolete here to delete?
  Own thought: Recovery window is 7 days. RMAN needs a backup in order to recover the database in any time-7 days to the present time (7 March 21:00 - 7 days = 28 fev 21:00). No obsolete backup to delete.
  
  7 March 21:30 - full database backup and fails to save all logs archiving (sysdate-8). No space in the Flash recovery disk group. As the archivelog backup failed and RMAN complete, it has not removed the archivelogs ' sysdate-15'.
  
  Backup is running again on 14 March. Of course, it will fail because there is no enough space in the Group of recovery disks.
  
  Future: I'm confused
  March 14, 21:00: contre-vérifie the backupset (supported March February 21:30). No backup/copy of overlap.
  Question 2: How do I know what is here obsolete? From the window of 7 days recovery, 14 March 21:00-7 days is March 7, 21:00. Last backup was taken on March 7, 21:30.
  To get back to 21:00, RMAN makes keep the backup of 28 March?... Does this mean whenever I'll have copies of backup 3?...
  
  14 March 21:30 - backup database... Log Archive backup will fail because there is no space. (I think to make a compressed backup).
  
  Question 3: How those wise commands?
  ARCHIVELOG BACKUP of time ' SYSDATE-8';
  DELETE ARCHIVELOG ALL COMPLETED BEFORE ' SYSDATE-15';
  
  If I take a successful backup of the archivelogs sysdate-8, why I need to keep the archivelogs before that? What could be the reason the previous DBA kept DELETE ARCHIVELOG COMPLETED BEFORE ANY 'SYSDATE-15 '; Rather than give DELETE ARCHIVELOG FINISHED FIRST and FOREMOST ' SYSDATE-8 "?
  
  Thanks in advance for your help.
  
  Published by: user8907052 on March 11, 2010 12:10

  If your database to 9i and above, then you don't need to pass - sql 'alter system archive log current;' before you perform the backup as RMAN automatically archives the log during recovery.

• Delete obsolete backups

  I have redundancy for 1, I understand that now only current backup set must be valid and all backups must be now be in the list of obsolete backups. But it is not yet with me, when I give RMAN > obsolete report; order it show only the precedent of obsolete backup and not showing any old backups in this list. So I physically delete these backups, but when I give RMAN > list backup summary; or RMAN > backup overlap command, showing all old backups that I was deleted. I work in catalog mode. What is the cure...
  

  RMAN> show all;
  
  RMAN configuration parameters are:
  CONFIGURE RETENTION POLICY TO REDUNDANCY 1;
  CONFIGURE BACKUP OPTIMIZATION OFF; # default
  CONFIGURE DEFAULT DEVICE TYPE TO DISK;
  CONFIGURE CONTROLFILE AUTOBACKUP ON;
  CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default
  CONFIGURE DEVICE TYPE DISK PARALLELISM 4 BACKUP TYPE TO COMPRESSED BACKUPSET;
  CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
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  CONFIGURE MAXSETSIZE TO UNLIMITED; # default
  CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
  CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
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  CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/app/oracle/product/10.2.0/dbs/snapcf_sba.f'; # default

  HI Werner,.

  Yes you are right.

  What backup set is deleted by using OS commands. Backup set becomes expired if we run 'overlap backupset' and delete obsolete will not erase this info from the catalog.

  to do this need to run 'delete expired backupset '.

  Published by: Rajesh.Rathod on February 6, 2012 05:31

• RMAN backup and restore into Production KEEPS RAC and DATA

  Hi gurus of the Oracle
  
  We need the expert advice for tune and cross check the RMAN Script for Production environment below below
  
  Please suggest any corrections or comments on below mention scripts which will be executed on RAC and Production DATA GUARD environment
  
  LINUX RHEL 5.5 64-bit
  ORACLE GRID Infrastructure R2 Version 11.2.0.3.0 (we use ASM Cluster File system)
  ORACLE11g R2 Version 11.2.0.3.0
  
  We planned for basically rman backup drive using control file target instead of recovery catalog database
  
  We will have Data Guard Setup between 2 remote sites of database and two remote sites have running the local 2-node RAC database
  
  =========================RMAN_Full_Backup.sh=========================================================================
  #! / bin/bash
  . /Home/orarac/.bash_profile
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  tag 'datafile_full ';
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  run
  {
  allocate channels ch1 type disk maxpiecesize = 1024 M;
  allocate channel ch2 type disk maxpiecesize = 1024M;
  overlap archivelog all;
  SQL 'alter system archive log current';
  backup ARCHIVELOG all delete them all input FORMAT ' / backup/RMAN_Backup/rman_bkp_%U_%d_%T_ARCHIVELOG_%D_%M_%Y'
  tag 'archivelog_full ';
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  EXPRESSIONS OF FOLKLORE
  ==================================================================================================
  =========================================RMAN_Inc_Backup.sh ===========================================
  #! / bin/bash
  . /Home/orarac/.bash_profile
  logloc = 'date' + rman_backup_lvl1_orcldb_ %m %y hour %M %S %d ".log
  # Start rman backup
  # use only the following line if this script is run via the root CRON
  Target of $ORACLE_HOME/bin/rman = / log = / backup/RMAN_Log / $logloc < < EOF
  
  Run {}
  allocate channels ch1 type disk maxpiecesize = 1024 M;
  allocate channel ch2 type disk maxpiecesize = 1024M;
  database backup incremental level 1 FORMAT ' / backup/RMAN_Backup/rman_bkp_%U_%d_%T_DATAFILE_LVL1_%D_%M_%Y'
  include current controlfile
  tag 'datafile_Incr ';
  }
  Run {}
  allocate channels ch1 type disk maxpiecesize = 1024 M;
  allocate channel ch2 type disk maxpiecesize = 1024M;
  overlap archivelog all;
  SQL 'alter system archive log current';
  backup ARCHIVELOG all delete them all input FORMAT ' / backup/RMAN_Backup/rman_bkp_%U_%d_%T_ARCHIVELOG_%D_%M_%Y'
  tag 'archivelog_full ';
  }
  cross-checking of backup;
  delete noprompt obsolete;
  backup from the list;
  EXIT;
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  -bash - $3.2
  ====================================================================================================
  ===================================RMAN_DB_Restore.sh====================================================
  -bash-3, $ 2 cat /home/orarac/RMAN_Scripts/RMAN_DB_Restore.sh
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  . /Home/orarac/.bash_profile
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  RECOVER THE DATABASE;
  ALTER DATABASE OPEN;
  }
  EXIT;
  EXPRESSIONS OF FOLKLORE
  ====================================================================================================
  
  Concerning
  Hitgon

  Thank you mseberg

  This command is the full backup or a backup of level 0?

  full backup as compressed backupset
  data include current controlfile more archivelog deletion entry;

  We use command below for the full backup of database.
  database backup incremental level 0 FORMAT ' / backup/RMAN_Backup/rman_bkp_%U_%d_%T_DATAFILE_LVL0_%D_%M_%Y'
  include current controlfile
  tag 'datafile_full ';

  We use the command below to the increment backup
  database backup incremental level 1 FORMAT ' / backup/RMAN_Backup/rman_bkp_%U_%d_%T_DATAFILE_LVL1_%D_%M_%Y'
  include current controlfile
  tag 'datafile_Incr ';

  What is the different when we use
  CONFIGURE ARCHIVELOG DELETION POLICY TO APPLIED ON STANDBY;

  or

  full backup as backupset compressed database include controlfile current more archivelog delete all input;

  Concerning
  Hitgon

• RMAN backup location must change and remove obsolete

  Dear Experts,

  I'm working on the following environment,

  Operating system: Windows server 2012 R2

  Oracle version: 11.2.0.1.0 release

  Type of RMAN backup: Cumulative (preferred by the direction and I can't change it in differential backup)

  My current situation,

  I set up RMAN and H: drive for purposes of backup and G: for Archivelog.

  Recently, my city was covered by the flood waters and the server works not for a week so that we delete obsolete level 0 does not work.

  Currently there is not enough space to run a level 1 and level 0, while I should change the backup location.

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• RMan is missing some files when deleting obsolete archivelogs

  Hi all
  
  in one of our databases 9iR2, I noticed a rather strange behavior of the RMan delete obsolete archivelogs. The RMan script has the "OBSOLETE RECOVERY WINDOW DELETE 7 DAYS DEVICE TYPE DISK"-command. If RMan deletes the archivelogs regularly. But unfortunately, in every race, it leaves 3 files cancelled. The log file is (only relevant lines):
  
  Remove the following obsolete backups and copies:
  Making key time filename/handle type
  ---- ----
  Archive 24779 08 - SEVEN journal.-10 /oralogs/oraArchive/VG41MED/VG41MED_12402.ora
  Archive Log 24780 08-SEVEN.-10 /oralogs/oraArchive/VG41MED/VG41MED_12403.ora
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  Archive 24785 08 - SEVEN journal.-10 /oralogs/oraArchive/VG41MED/VG41MED_12408.ora
  
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  Remove the following obsolete backups and copies:
  Making key time filename/handle type
  ---- ----
  Archive Log 24799 09-SEPT.-10 /oralogs/oraArchive/VG41MED/VG41MED_12412.ora
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  This behavior appears still more strange, because the RMan backup script even run on 3 other databases with same structure does not show this "error". I checked the configuration of 4 databases and not detected no difference.
  
  Maybe it's a corrupt controlfile (we do not catalog-db). Someone has any idea how to solve this problem?
  
  Thank you
  Friedhelm
  
  Edited by: user8964905 the 20.09.2010 00:18

  Hello
  (1) I think the command of OVERLAP is the only way to know what archivelogs are always specific to the database (expired or available) kn.
  (2) thank you for your explanations. You're right - the order REPORT OBSOLETE list backups, but my problem are the obsolete archivelogs of backups. If my humble opinion REPORT OBSOLETE wouldn't help.

  In fact no and no :).

  (1) a simple

  list archivelog all;
  

  lists the known archivelog (expired or available) files.

  crosscheck archivelog all;
  

  will check if the information on their availability is still topical, but it will not help you in this case (they exist!)

  2.

  report obsolete recovery...;
  

  http://download.Oracle.com/docs/CD/B10501_01/server.920/a96566/rcmconc3.htm#463220
  Order REPORT displays OBSOLETE backups and copies of data files, control files, and archived redo logs that can be deleted because they are no longer needed.
  ...
  OK, but if you read a little more of the documentation:
  ...
  In addition to backups of file obsolete data, RMAN reports obsolete archived newspapers and archived backups of logs. When backups of files of data from one point in time are obsolete, then archived logs that can apply to these data files are also is no longer necessary and become obsolete according to the specified retention policy.

  ---------------------------------------------------------------------------------------------------------------------------

  I have increased the CONTROLFILE_RECORD_KEEP_TIME now and watch the results next night. Perhaps the reason for this behavior is the fact that this database is very small compared to other databases, which do not show the effect.
  I'll post the result of this strategy, here the next few days.
  Wait & see

  Best regards
  Phil