RMAN incremental backup

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• Roll forward standby with RMAN incremental backup when used DG broker

  Hello
  
  I'm about to use the process defined in the note: steps to roll forward a database ensures the RMAN incremental backup using during primaries and Eve are in the file [836986.1 ID] ASM system. I'm on 11.1.0.7.
  
  However, it does not mention the DataGuard broker.
  Did someone played this process when you use the broker.
  The broker he manages properly?
  Does it matter if the broker is upwards or downwards during the physical recovery of standby or replacement of control file?
  Should the broker configuration be re-created?
  
  Thank you.

  user11993454 wrote:
  Hello

  I'm about to use the process defined in the note: steps to roll forward a database ensures the RMAN incremental backup using during primaries and Eve are in the file [836986.1 ID] ASM system. I'm on 11.1.0.7.

  However, it does not mention the DataGuard broker.
  Did someone played this process when you use the broker.
  The broker he manages properly?
  Does it matter if the broker is upwards or downwards during the physical recovery of standby or replacement of control file?
  Should the broker configuration be re-created?

  Thank you.

  (1) disable the broker
  (2) perform the Roll forard SNA.
  (3) select the broker

• Before physical deployment standby with RMAN incremental backups.

  This method is available in 10g:

  http://Web.Stanford.edu/dept/ITSS/docs/Oracle/10gR2/server.102/b14239/scenarios.htm#CIHIAADC

  For 11g:

  http://docs.Oracle.com/CD/E11882_01/server.112/e41134/RMAN.htm#SBYDB00759

  For 12 c:

  http://docs.Oracle.com/database/121/BRADV/rcmadvre.htm#BRADV685

  According to dosc 10 g, the scenario is simple:

  1. create an incremental backup to SNA required on primary and copy it in standby mode

  2 save the backup in sleep mode and perform a recovery

  11 g dosc, we must recreate the standby control file and update the file names before performing the recovery.

  12 c introduces the new method - recovery on network, but again, we must recreate and standby control file update.

  The question is: why we must create new controlfile ensures g 11 and 12 c and can we use a simple method of 10g?

  Thank you.

  Hello

  1 why the incremental backup application does not update standby controlfile?

  -Your database pending is be retrieved using the incremental backup. This does not update the eve controlfile. Your standby controlfile completely ignores the last CNS to the primary database.

  2. what happens if we leave the old standby controlfile? RFS will record new logs of the primary, but will ignore them MRP? If so, can update us standby controlfile by manually applying the following log?

  -Your old standby controlfile is unaware of the last CNS to the primary database.

  As Mseberg said, trying things on a test computer and you will have the answers to your questions.

  Kind regards

  Shivananda

• Case of level 1 RMAN incremental backup failure...

  Hello

  I have a question. If the incremental level 1 RMAN backup fails, the next level 1 backup attempt will have backup all changes since the last backup of level 0 OR level 1 successful?

  Best regards

  Hello

  I have a question. If the incremental level 1 RMAN backup fails, the next level 1 backup attempt will have backup all changes since the last backup of level 0 OR level 1 successful?

  Check the dictionary BACKUP_SET V$ to confirm if the last backup has been affected by the data dictionary. If incremental backup failed is picked up then the last incremental backup will be required in the case of the next LEVEL 1 DIFFERENTIAL INCREMENTIELLE backup.

  But to be on the safe side, it is recommended that you take a LEVEL 01 CUMILATIVE INCREMENTAL backup of level 0 up to this day. For the recovery process can go through even if the previous backup is not valid.

  Thank you &

  Best regards

• RMAN incremental backup continue to make backups "complete"?

  Hello, I am new to RMAN. I used only the full backup by RMAN, and it was OK. Now, due to lack of disk space, I decided to make incremental backups.

  I put 'to recovey retention policy window of 3 days; then made a new backup (by MS) job, looks like:

  $rman_script = ' backup database cumulative device type disk tag '% TAG' extra strength 1;

  backup disc tag '% TAG' type device archivelog all not saved delete all entries;

  But, always visible, size of the backup is the same all the time as a full backup? Where is my mistake?

  This is a backup log:

  RMAN > database backup incremental level 1 cumulative device type disk tag "BACKUP_DB10_00002_070413021501".

  From backup 4 July 13

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: sid = 1043 devtype = DISK

  channel ORA_DISK_1: additional start-up compressed 1 datafile backupset

  channel ORA_DISK_1: specifying datafile (s) in backupset

  input datafile fno = name=/database/app/oracle/oradata/db/tablespace1.dbf 00007

  input datafile fno = name=/database/app/oracle/oradata/db/tablespace2.dbf 00002

  ...

  channel ORA_DISK_1: starting total, 1 to 4 July 13

  channel ORA_DISK_1: finished piece 1 to 4 July 13

  piece handle=/backup/oracle/flash_recovery_area/db/backupset/2013_07_04/o1_mf_nnnd1_BACKUP_DB10_00002_0_8x9d45f5_.bkp tag = BACKUP_DB10_00002_070413021501 comment = NONE

  channel ORA_DISK_1: complete set of backups, time: 00:41:15

  Backup finished on 4 July 13

  > database backup incremental level 1 cumulative device type disk tag "BACKUP_DB10_00002_070413021501".

  There is a Note of support Oracle ' size of level 1 or level 1 cumulative backup greater than level 0 backups [ID 1534691.1].

  which applies if you use the DUNGEON and change the tag.

  I note that you change the tag every day, but do not use the clause to KEEP this note should not apply.

  Why not explicitly run EXTRA STRENGTH 0 backup once and then monitor subsequent LEVEL 1 backups?

  Hemant K Collette

• Resume failure RMAN incremental backup to disk 0 cold

  Linux x 86-64 10.2.0.4
  
  I take an incremental backup of 0 to disk in a database that is mounted. I'm backup the database on an NFS volume. I lost the NFS mounting. Is it possible to take a backup where it stopped at? He complains "ORA-27038: created file already exists" if I restart it. RMAN can easily return to a restore. I don't have time to redo everything all again. The database is greater than 10 TB. The target is not upward. Is there something else I could do?

  If you have lost the NFS mounting, has not lost what had been saved to this mount? So, don't you create a fresh backup of all the files again?

  How are you "restart" backup? If you issue a fresh BACKUP DATABASE, it must create a new backup, with new backupsets - I hope the backuppiece (i.e. the name of the file) is unique and/or the file with the same name is not existing on the target.

  Hemant K Collette

• Merger of the RMAN incremental backups

  Hi all
  
  I have a confusion.
  
  Sunday I L0 scheduled backup (backup as compressed).
  Then next 6 days (MON - sat) I incremental backup Level1 (differential).
  
  So let's assume that if I need to restore the Thursday, I need Sunday L0 and L1 of (MON, TUE, WED).
  
  Is it possible to merge L0 and L1 (until WEDNESDAY).
  
  Please specify.
  
  Thanks in advance.
  
  Kind regards
  Bikram

  As long as you use differential incremental backups, you need all of them between the last level 0 backup and recovery at the time point. It is exactly the concept of cumulative incremental backups to change this behavior. In the case of cumulative backups you would only need the full backup and the incremental backup from Wednesday.

  Werner

• RMAN incremental backup levels

  Hi experts,
  
  It is a 10g database operates in archivelog mode.
  
  It's the backup plan I currently use:
  
  backup database archivelog; (runs once a day)
  
  
  database backup incremental level 1; This runs every 3 hours
  
  
  All of the incremental backups that I do are level 1.
  
  * I will be able to restore, if I have no extra 0 level? **
  
  Thank you, John

  user629010 wrote:
  Thanks for the replies.

  So I should make a level 0 backup immediately after the full backup (backup of database ;) is that correct?

  Not its correct level 0 is in fact the entire backup only. This is the point which includes everything and hereonly, you start your next batch of incremental backups. You can throw the last backups made if you have taken a level 0 backup, because it covers everything and is a full backup.

  HTH
  Aman...

• RMAN incremental backup issue

  Hi all
  
  I'm read on Oracle11g release2 doc RMAN.
  
  In Chapter 9:
  
  "For example, you can implement a three-tier backup plan as well as a level 0 backup is performed every month, a cumulative level 1 is taken from the week, and a premium of level 1 is taken daily. In this strategy, you will never have to apply more than one day to complete recovery redo. »
  
  First I got an error when I try to make a level 0 backup

  RMAN> BACKUP INCREMENTAL LEVEL 0 database;
   
  Starting backup at 27-APR-11
  using channel ORA_DISK_1
  using channel ORA_DISK_2
  using channel ORA_DISK_3
  using channel ORA_DISK_4
  RMAN-00571: ===========================================================
  RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
  RMAN-00571: ===========================================================
  RMAN-03002: failure of backup command at 04/27/2011 20:42:19
  RMAN-20021: database not set
  RMAN-06031: could not translate database keyword

  and if the success of step, how I would go about to implement this?
  I can do this via dbms_scheduler? or I need to do this via cron?
  
  -Thank you very much for the entry

  Your DB must be in use archivelogmode use hot backups. Is your db in archivelog mode?

• NOLOGGING with DEC and RMAN incremental backup

  DB Version: 10.2.0.4
  OS : AIX
  
  We use RMAN for our backup scheduled via cron.
  Retention Policy : REDUNDANCY 1
  Type             : Incremental 

  On the 31 of every month in most of our patterns, we recreate a lot of tables using DEC.
  
  Due to the size, the CREATE TABLE instructions take a while. Because we run on the Standard edition, we cannot use the PARALLELISM.
  NOLOGGING is the only option to improve performance. But we are concerned the roll forward not being generated for these tables and the potential loss of data in case of crash.
  
  Currently we take a Level0 backup every Wednesday and Sunday night and LEVEL1 backup on the rest of the days.
  
  I know that all will be saved on Level0. But what happens if 31 falls on a day which occurs the only backup of level 1. We will be safe only until the next Level0 arrives.
  
  No work around for this?

  HI T.Boyd,

  NOLOGGING is the only option to improve performance.

  So no recovery will be generated but the blocks in the data files will change.

  But what happens if 31 falls on a day which occurs the only backup of level 1.

  Only blocks changed since the last level 0 (or level 1 if you use differential differential) will be saved which includes blocks modified by the ETG.

  No work around for this?

  No need for a work around. You can check at any time whether a certain activity nologging will compromise a restoration with < report="" unrecoverable;=""> .
  Kind regards
  Tycho

• Roll forward standby database with the incremental backup, when a data file is deleted in primary education

  Hello

  I'm nologging operations + deleting some files in the primary and you want to roll forward the day before using the incremental backup Yvert.

  I do in particular, as the files are dropped?

  I got to meet ( Doc ID 1531031.1 ) which explains how to roll forward when a data file is added.

  If I follow the same steps, to make the move to restore the data file newly added, will it work in my case?

  Can someone please clarify?

  Thank you

  San

  I was wondering if reocover noredo is performed before restored controlfile, oracle will apply the incremental backup error-free files, and in this case, what would be the status of the data file in the control file.

  Why do you consider to retrieve the day before first and then in the restaurant of the controlfile will lead to problems. Please read my first post on this thread - I had clearly mentioned that you would not face problems if you go with the method of deployment.

  Here is a demo for you with force logging is disabled. For the first time the day before resuming and restored then the controlfile ensures:

  Primary: oraprim

  Standby: orastb

  Tablespace DataFile of MYTS is removed on primary:

  SYS @ oraprim > select force_logging in the database of v$.

  FORCE_LOGGING

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

  NO.

  Currently the tablespace is to have 2 data files.

  SYS @ oraprim > select file_name in dba_data_files where nom_tablespace = 'MYTS;

  FILE_NAME

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

  /U01/app/Oracle/oradata/oraprim/myts01.dbf

  /U01/app/Oracle/oradata/oraprim/myts02.dbf

  In standby mode, the tablespace is to have 2 data files:

  SYS @ orastb > select name from v$ datafile where ts #= 6;

  NAME

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

  /U01/app/Oracle/oradata/orastb/myts01.dbf

  /U01/app/Oracle/oradata/orastb/myts02.dbf

  Postponement of the day before on the primary log shipping

  SYS @ oraprim > alter system set log_archive_dest_state_3 = delay;

  Modified system.

  Dropped 1 MYTS datafile on the primary.

  SYS @ oraprim > alter tablespace myts drop datafile ' / u01/app/oracle/oradata/oraprim/myts02.dbf';

  Tablespace altered.

  Removed some archives to create a space.

  [oracle@ora12c-1 2016_01_05] $ rm - rf * 31 *.

  [oracle@ora12c-1 2016_01_05] $ ls - lrt

  13696 total

  -rw - r - 1 oracle oinstall 10534400 5 January 18:46 o1_mf_1_302_c8qjl3t7_.arc

  -rw - r - 1 oracle oinstall 2714624 5 January 18:47 o1_mf_1_303_c8qjmhpq_.arc

  -rw - r - 1 oracle oinstall 526336 5 January 18:49 o1_mf_1_304_c8qjp7sb_.arc

  -rw - r - 1 oracle oinstall 23552 5 January 18:49 o1_mf_1_305_c8qjpsmh_.arc

  -rw - r - 1 oracle oinstall 53760 5 January 18:50 o1_mf_1_306_c8qjsfqo_.arc

  -rw - r - 1 oracle oinstall 14336 Jan 5 18:51 o1_mf_1_307_c8qjt9rh_.arc

  -rw - r - 1 oracle oinstall 1024 5 January 18:53 o1_mf_1_309_c8qjxt4z_.arc

  -rw - r - 1 oracle oinstall 110592 5 January 18:53 o1_mf_1_308_c8qjxt34_.arc

  [oracle@ora12c-1 2016_01_05] $

  Current main MYTS data files:

  SYS @ oraprim > select file_name in dba_data_files where nom_tablespace = 'MYTS;

  FILE_NAME

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

  /U01/app/Oracle/oradata/oraprim/myts01.dbf

  Current data of MYTS standby files:

  SYS @ orastb > select name from v$ datafile where ts #= 6;

  NAME

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

  /U01/app/Oracle/oradata/orastb/myts01.dbf

  /U01/app/Oracle/oradata/orastb/myts02.dbf

  Gap is created:

  SYS @ orastb > select the process, status, sequence # v$ managed_standby;

  STATUS OF PROCESS SEQUENCE #.

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

  ARCH. CLOSING 319

  ARCH. CLOSING 311

  CONNECTED ARCH 0

  ARCH. CLOSING 310

  MRP0 WAIT_FOR_GAP 312

  RFS IDLE 0

  RFS IDLE 0

  RFS IDLE 0

  RFS IDLE 320

  9 selected lines.

  Backup incremental RMAN is taken elementary school.

  RMAN > incremental backup of the format of database of SNA 2686263 ' / u02/bkp/%d_inc_%U.bak';

  From backup 5 January 16

  using the control file of the target instead of recovery catalog database

  the DISC 2 channel configuration is ignored

  the DISC 3 channel configuration is ignored

  configuration for DISK 4 channel is ignored

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: SID = 41 type device = DISK

  channel ORA_DISK_1: starting full datafile from backup set

  channel ORA_DISK_1: specifying datafile (s) in the backup set

  Enter a number of file datafile = 00001 name=/u01/app/oracle/oradata/oraprim/system01.dbf

  Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/sysaux01.dbf 00003

  Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/undotbs01.dbf 00004

  Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/users01.dbf 00006

  Enter a number of file datafile = name=/u01/app/oracle/oradata/oraprim/myts01.dbf 00057

  channel ORA_DISK_1: starting total, 1-January 5, 16

  channel ORA_DISK_1: finished piece 1-January 5, 16

  piece handle=/u02/bkp/ORAPRIM_inc_42qqkmaq_1_1.bak tag = TAG20160105T190016 comment = NONE

  channel ORA_DISK_1: complete set of backups, time: 00:00:02

  Backup finished on 5 January 16

  Saved controlfile on primary:

  RMAN > backup current controlfile to Eve format ' / u02/bkp/ctl.ctl';

  Cancel recovery in standby mode:

  SYS @ orastb > alter database recover managed standby database cancel;

  Database altered.

  Recover the day before by using the above backup items

  RMAN > recover database noredo;

  From pick up to 5 January 16

  the DISC 2 channel configuration is ignored

  the DISC 3 channel configuration is ignored

  configuration for DISK 4 channel is ignored

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: SID = 26 type of device = DISK

  channel ORA_DISK_1: from additional data file from the restore backup set

  channel ORA_DISK_1: specifying datafile (s) to restore from backup set

  destination for the restoration of the data file 00001: /u01/app/oracle/oradata/orastb/system01.dbf

  destination for the restoration of the data file 00003: /u01/app/oracle/oradata/orastb/sysaux01.dbf

  destination for the restoration of the data file 00004: /u01/app/oracle/oradata/orastb/undotbs01.dbf

  destination for the restoration of the data file 00006: /u01/app/oracle/oradata/orastb/users01.dbf

  destination for the restoration of the data file 00057: /u01/app/oracle/oradata/orastb/myts01.dbf

  channel ORA_DISK_1: backup /u02/bkp/ORAPRIM_inc_3uqqkma0_1_1.bak piece reading

  channel ORA_DISK_1: room handle=/u02/bkp/ORAPRIM_inc_3uqqkma0_1_1.bak tag = TAG20160105T190016

  channel ORA_DISK_1: restored the backup part 1

  channel ORA_DISK_1: restore complete, duration: 00:00:01

  Finished recover to 5 January 16

  Restored the controlfile and mounted the day before:

  RMAN > shutdown immediate

  dismounted database

  Instance Oracle to close

  RMAN > startup nomount

  connected to the database target (not started)

  Oracle instance started

  Total System Global Area 939495424 bytes

  Bytes of size 2295080 fixed

  348130008 variable size bytes

  583008256 of database buffers bytes

  Redo buffers 6062080 bytes

  RMAN > restore controlfile eve of ' / u02/ctl.ctl ';

  From 5 January 16 restore

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: SID = 20 type of device = DISK

  channel ORA_DISK_1: restore the control file

  channel ORA_DISK_1: restore complete, duration: 00:00:01

  output file name=/u01/app/oracle/oradata/orastb/control01.ctl

  output file name=/u01/app/oracle/fast_recovery_area/orastb/control02.ctl

  Finished restore at 5 January 16

  RMAN > change the editing of the database;

  Statement processed

  output channel: ORA_DISK_1

  Now the data file does not exist on the standby mode:

  SYS @ orastb > alter database recover managed standby database disconnect;

  Database altered.

  SYS @ orastb > select the process, status, sequence # v$ managed_standby;

  STATUS OF PROCESS SEQUENCE #.

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

  CONNECTED ARCH 0

  CONNECTED ARCH 0

  CONNECTED ARCH 0

  ARCH. CLOSING 329

  RFS IDLE 0

  RFS IDLE 330

  RFS IDLE 0

  MRP0 APPLYING_LOG 330

  8 selected lines.

  SYS @ orastb > select name from v$ datafile where ts #= 6;

  NAME

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

  /U01/app/Oracle/oradata/orastb/myts01.dbf

  Hope that gives you a clear picture. You can use this to roll forward day before using the SNA roll forward Eve physical database using RMAN incremental backup | Shivananda Rao

  -Jonathan Rolland

• RMAN incremental

  Dear,
  Hello
  Sorry if I can't write English well,
  my (datafiles) size of the database is about 1.4 GB.
  I take level 0 RMAN incremental backup and size of output file is about 1.1 GB
  After that, I put on the record of a table (by change of test)
  and I take incremental backup of level 1 and output file size is about 1.1 GB (level 0)
  but I think that the level 1 just changed the block and must be lower than level 0.
  
  RMAN > backup database incremental level 0 FORMAT 'd:\rm\L0_%d_t%t_s%s_p%p ';
  
  RMAN > backup database incremental level 1 FORMAT "d:\rm\L1_%d_t%t_s%s_p%p".
  
  
  Why the size for levels 0 and 1 is same?
  
  Thank you and best regards
  Hassan

  In theory, the backup of the L1 must be smaller because he must capture only changed blocks (it is not a requirement that you create a BCT - one file BCT file helps speed up the incremental backup, its presence or absence has nothing to do with the size of the incremental backup of L1).

  You must determine if there were other, several changes to the database that have also taken place between two backups.

  Hemant K Collette

• What is the role of the archived in an incremental backup redo log files?

  I want to know, to which RMAN reads what block of data is changed after the last incremental backup.
  and what is the role of the archived in an incremental backup redo log files?
  
  Please guide.

  Hello

  First Querstion response->
  Each block of data in a data file contains a system change number (SCN), which is the SCN of the last change to the block. During an incremental backup, RMAN reads the RCS of each block of data in the input file and compares at the checkpoint SCN of the incremental backup from parent. If the RCS in the block of input data is greater than or equal to checkpoint SCN of the parent, then RMAN copies the block.

  2 - the archived redolog files are required for the restoration of the online of rman incremental backup in a consistent state.

  Thank you & best regards
  Rahul Sharma

• RMAN LEVEL BACKUP INCREMENTAL 0 AND 1 OF CUMULATIVE LEVEL

  Dear friends

  This is Eliza, I need some clarification, your suggestion will help me more...

  Currently I am working in RMAN backup and restore, recovery and I need to take the extra SIZE 0 AND LEVEL 1 CUMULATIVE

  I know something about what level rman incremental 0 and level 1 cumulative can do is, first I have to take the level 0 and then level 1 respectively.

  As follows

  SUNDAY: LEVEL 0 CUMULATIVE

  MONDAY - SATURDAY: LEVEL 1 CUMULATIVE

  SUNDAY: LEVEL 0 CUMULATIVE (repetition of this cycle)
  

  MY QUESTION IS

  Can I use after an order to take INCREMENTIELLE LEVEL 1 CUMULATIVE backup of,

  CUMULATIVE DATABASE INCREMENTAL LEVEL 1; # has changed since the level 0 blocks

  But, if I want to take CUMULATIVE INCREMENTAL level 0 BACKUP, that is me I want to use the following,

  INCREMENTAL LEVEL 0 BACKUP CUMULATIVE BASIS;

  (GOLD)

  DATABASE INCREMENTAL LEVEL 0 BACKUP;

  (GOLD)

  Suggest me your valuable idea. Thanks in advance.

  
  

  Hello

  I think that this CUMULATIVE or incremental level 0 backup specification makes no sense so INCREMENTAL level 0 BACKUP database; = INCREMENTAL CUMULATIVE 0 DATA LEVEL;

• While you take the cumulative incremental backup RMAN. Meanwhile users ke

  While you take the cumulative incremental backup RMAN.
  During this time users keep be updated, insert the corresponding schema.
  But my Client doesn't backup up-to-date. Is it possible to get the up-to-date backup?
  (If I have something wrong, sorry about that, that was my interview question)
  
  Thanks for all,
  Kind regards
  DB

  DB wrote:
  While you take the cumulative incremental backup RMAN.
  During this time users keep be updated, insert the corresponding schema.
  But my Client doesn't backup up-to-date. Is it possible to get the up-to-date backup?
  (If I have something wrong, sorry about that, that was my interview question)

  Thanks for all,
  Kind regards
  DB

  RMAN backup is not compatible and easy to follow on-line transactions. If it's something any purpose of migration suggest taking COLD backup.
  If it's no way suggested, then after your entire + cumulative backups, however, that data will be available in archives