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d여기에서 Oracle World – How to perform RMAN Recovery Block Corruption – ora 19566 exceeded limit of 0 corrupt blocks for file 주제에 대한 세부정보를 참조하세요

Let us look at a test case where we corrupt from blocks in a particular datafile and then use the RMAN blockrecover command to recover the corrupted data blocks. #performRMANRecovery #BlockCorruption

ora 19566 exceeded limit of 0 corrupt blocks for file 주제에 대한 자세한 내용은 여기를 참조하세요.

RMAN Reports an ORA-19566: Exceeded Limit Of 0 Corrupt …

Performing an DBV on the above file shows a corrupt block. dbv file=//.dbf blocksize=16384. DBVERIFY: Release 9.2.0.4.0 – …

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Source: support.oracle.com

Date Published: 2/10/2022

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ORA-19566 Exceeded limit of corrupt blocks tips

Cause: The user specified limit of allowable corrupt blocks was exceeded while reading the specified datafile for a datafile copy or backup. Action: None. The …

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Date Published: 1/9/2022

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exceeded limit of 0 corrupt blocks for file during RMAN Backup

Hi,. Sometimes You can get ” ORA-19566: exceeded limit of 0 corrupt blocks for file error ” during RMAN Backup . Details of error are as follows …

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ORA-19566: Exceeded limit of 0 corrupt blocks for file

ORA-19566: exceeded limit of 0 corrupt blocks for file /u01/app/oracle/product/11.2.0.4/oradata/REDHAT/system01.dbf. Solution:-.

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exceeded limit of 0 corrupt blocks for file – Arcserve support

Cause: The user specified limit of allowable corrupt blocks was exceeded while reading the specified datafile for a datafile copy or backup.

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ORA-19566 & RMAN-03009 exceeded limit of 0 corrupt blocks

During the full backup operation, I noticed that RMAN log mention below error message at the backup log file. RMAN-03009: failure of backup …

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ORA-19566: exceeded limit of 0 corrupt blocks for file

ORA-19566: exceeded limit of 0 corrupt blocks for file … 1. Shut down, mount the database and try flush redo using ALTER SYSTEM FLUSH REDO TO ‘ …

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RMAN ORA-19566 exceeded limit – Database Tutorials

When we get a backup with Rman, if there is a damaged block on a datafile, the ORA-19566 error will be received and the backup operation will …

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ORA-19566: Exceeded Limit Of 0 Corrupt Blocks For File

Cause. The user specified limit of allowable corrupt blocks was exceeded while reading the specified datafile for a datafile copy or backup.

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2974595 – ORA-19566: exceeded limit of 0 corrupt blocks for file

Performing a backup with RMAN terminates with the following error: ORA-19566: exceeded limit of 0 corrupt blocks for file

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주제에 대한 기사 평가 ora 19566 exceeded limit of 0 corrupt blocks for file

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• Date Published: 2015. 2. 6.
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RMAN Reports an ORA-19566: Exceeded Limit Of 0 Corrupt Blocks From Backup And No Segment Associated

RMAN Reports an ORA-19566: Exceeded Limit Of 0 Corrupt Blocks From Backup And No Segment Associated (Doc ID 457422.1)

Last updated on JANUARY 31, 2022

Applies to:

Symptoms

1. Attempting a backup using RMAN, you receive the following error,

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03009: failure of backup command on ch1 channel at 09/01/2007 19:38:44

ORA-19566: exceeded limit of 0 corrupt blocks for file //.dbf

2. Performing an DBV on the above file shows a corrupt block.

dbv file=//.dbf blocksize=16384 DBVERIFY: Release 9.2.0.4.0 – Production on Thu Aug 30 18:06:59 2007 Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved. DBVERIFY – Verification starting : FILE = //.dbf

Page 91880 is influx – most likely media corrupt

***

Corrupt block relative dba: 0x048166e8 (file 18, block 91880)

Fractured block found during dbv:

Data in bad block –

type: 0 format: 0 rdba: 0x00000000

last change scn: 0x0000.00000000 seq: 0x0 flg: 0x00

consistency value in tail: 0x00000001

check value in block header: 0x0, block checksum disabled

spare1: 0x0, spare2: 0x0, spare3: 0x0

*** DBVERIFY – Verification complete Total Pages Examined : 128000

Total Pages Processed (Data) : 10475

Total Pages Failing (Data) : 0

Total Pages Processed (Index): 1154

Total Pages Failing (Index): 0

Total Pages Processed (Other): 645

Total Pages Processed (Seg) : 0

Total Pages Failing (Seg) : 0

Total Pages Empty : 115725

Total Pages Marked Corrupt : 1

Total Pages Influx : 1

Please note Page number (One which is highlighted) reported in dbverify output at the start is the Oracle block number having the corruption.

3. The following SQL statement is executed to determine that there is no segment associated

SELECT tablespace_name, segment_type, owner, segment_name

FROM dba_extents

WHERE file_id = 18

and 91880 between block_id AND block_id + blocks – 1;

Changes

Cause

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ORA-19566 Exceeded limit of corrupt blocks tips

Question: I am running RMAN and I get the ORA-19566 error:

RMAN-03009: failure of backup command on a2 channel

ORA-19566: exceeded limit of 0 corrupt blocks for file /u01/ap/oracle/TERP/idx11.dbf

Pls do the needfull and resolve my the ORA-19566 error.

Answer: The Oracle docs note this on the ORA-19566 error, indicating a media corruption error.

ORA-19566 – Exceeded limit of %s corrupt blocks for file

Cause: The user specified limit of allowable corrupt blocks was exceeded while reading the specified datafile for a datafile copy or backup.

Action: None. The copy or backup operation fails. The session trace file contains detailed information about which blocks were corrupt.

For complete details on investigating the ORA-19566 error, see MOSC note 336133.1.

For additional information on handling corruption, see the BC expert notes on corruption and see MOSC Note 1088018.1 – Handling Oracle Database Corruption Issues.

The ORA-19566 error suggest accessing the associated trace file (in your bdunp or udump directory), but you will almost always find a media error (corrupt disk or tape). In rare cases, re-trying the recovery may fix the ORA-19566 error:

ORA-19566: exceeded limit of 0 corrupt blocks for file during RMAN Backup

ORA-19566: exceeded limit of 0 corrupt blocks for file during RMAN Backup

Hi,

Sometimes You can get ” ORA-19566: exceeded limit of 0 corrupt blocks for file error ” during RMAN Backup .

Details of error are as follows.

RMAN-03009: failure of backup command on ORA_DISK_3 channel at 07/22/2020 18:54:19 ORA-19566: exceeded limit of 0 corrupt blocks for file +DATA/MSDB/datafile/test_data.658.962642173 RMAN-03009: failure of backup command on ORA_DISK_2 channel at 07/22/2020 18:22:32 ORA-19566: exceeded limit of 0 corrupt blocks for file +DATA/MSDB/datafile/test_data.325.21959565 RMAN-03009: failure of backup command on ORA_DISK_8 channel at 07/22/2020 18:43:24 ORA-19566: exceeded limit of 0 corrupt blocks for file +DATA/MSDB/datafile/test_data.873.423432475

This error is related with the Corrupted blocks on database. You can read the following post to learn more details about Block corruption.

Use DBV Tool and Performing an DBV on the above file shows a corrupt block.

dbv file=//.dbf blocksize=16384

DBVERIFY: Release 9.2.0.4.0 – Production on Thu Aug 30 18:06:59 2007 Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved. DBVERIFY – Verification starting : FILE = //.dbf Page 91880 is influx – most likely media corrupt *** Corrupt block relative dba: 0x048166e8 (file 18, block 91880) Fractured block found during dbv: Data in bad block – type: 0 format: 0 rdba: 0x00000000 last change scn: 0x0000.00000000 seq: 0x0 flg: 0x00 consistency value in tail: 0x00000001 check value in block header: 0x0, block checksum disabled spare1: 0x0, spare2: 0x0, spare3: 0x0 *** DBVERIFY – Verification complete Total Pages Examined : 128000 Total Pages Processed (Data) : 10475 Total Pages Failing (Data) : 0 Total Pages Processed (Index): 1154 Total Pages Failing (Index): 0 Total Pages Processed (Other): 645 Total Pages Processed (Seg) : 0 Total Pages Failing (Seg) : 0 Total Pages Empty : 115725 Total Pages Marked Corrupt : 1 Total Pages Influx : 1

You can use the following SQL statement is executed to determine that there is no segment associated

SELECT tablespace_name, segment_type, owner, segment_name FROM dba_extents WHERE file_id = 18 and 91880 between block_id AND block_id + blocks – 1;

you can use the Block Media Recovery (BMR) method to repair the related blocks as follows. BLOCKRECOVER DATAFILE 137 BLOCK 3464832; BLOCKRECOVER DATAFILE 137 block 3844717 DATAFILE 38 block 1490618; You can recover the related block from Disk or Tape backup as follows. run { ALLOCATE CHANNEL CH1 TYPE ‘DISK’; BLOCKRECOVER DATAFILE 92 BLOCK 20737; RELEASE CHANNEL CH1; } run { ALLOCATE CHANNEL CH1 TYPE ‘SBT_TAPE’; send ‘NSR_ENV=(NSR_CLIENT=NSR_CLIENT_NAME,NSR_SERVER=NSR_SERVER_NAME) ‘; BLOCKRECOVER DATAFILE 92 BLOCK 20737; RELEASE CHANNEL CH1; } You can repair all physically corrupted blocks recorded in the view with the following command. RMAN> RECOVER CORRUPTION LIST; Now problem has been solved.

Do you want to learn more details about RMAN, then read the following articles.

https://ittutorial.org/rman-backup-restore-and-recovery-tutorials-for-beginners-in-the-oracle-database/

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ORA-19566 & RMAN-03009 exceeded limit of 0 corrupt blocks

I have faced with that issue on our 12.1.3 EBS system on AIX system with 2 node 11gR2 RAC databases.

During the full backup operation, I noticed that RMAN log mention below error message at the backup log file.

RMAN-03009: failure of backup command on ORA_DISK_3 channel at 03/29/2012 22:19:19 ORA-19566: exceeded limit of 0 corrupt blocks for file +ORADATA/PROD/datafile/apps_ts_xxcustom_data.308.752148073 RMAN-03009: failure of backup command on ORA_DISK_2 channel at 03/29/2012 21:42:32 ORA-19566: exceeded limit of 0 corrupt blocks for file +ORADATA/PROD/datafile/apps_ts_xxcustom_data.395.741949465 RMAN-03009: failure of backup command on ORA_DISK_8 channel at 03/29/2012 22:18:24 ORA-19566: exceeded limit of 0 corrupt blocks for file +ORADATA/PROD/datafile/apps_ts_xxcustom_data.583.753881375

We have below error at alert.log:

Hex dump of (file 440, block 1106642) in trace file /oracle11g/PROD/db/diag/rdbms/PROD/PROD1/trace/PROD1_ora_45744742.trc Corrupt block relative dba: 0x6e10e2d2 (file 440, block 1106642) Bad check value found during backing up datafile Data in bad block: type: 6 format: 2 rdba: 0x6e10e2d2 last change scn: 0x08fc.fd857452 seq: 0x2 flg: 0x04 spare1: 0x0 spare2: 0x0 spare3: 0x0 consistency value in tail: 0x74520602 check value in block header: 0x937c computed block checksum: 0x3a7 Reread of blocknum=1106642, file=+ORADATA/PROD/datafile/apps_ts_xxcustom_data.716.771786733. found same corrupt data Reread of blocknum=1106642, file=+ORADATA/PROD/datafile/apps_ts_xxcustom_data.716.771786733. found same corrupt data Reread of blocknum=1106642, file=+ORADATA/PROD/datafile/apps_ts_xxcustom_data.716.771786733. found same corrupt data Reread of blocknum=1106642, file=+ORADATA/PROD/datafile/apps_ts_xxcustom_data.716.771786733. found same corrupt data Reread of blocknum=1106642, file=+ORADATA/PROD/datafile/apps_ts_xxcustom_data.716.771786733. found same corrupt data

After some search on Metalink and I followed Intermittent Ora-19566 When Using RMAN Backup [ID 549256.1] and then We first started to work with our storage team to can identified Issue is related with storage or not.

I noticed that issue is not with storage level. So We decided to go with SR1.

During SR session I followed below steps to identified why I faced this corruption and how we can solve an issue in a short period.

Firstly While corruption happens Oracle started to fill in V$DATABASE_BLOCK_CORRUPTION dynamic view. So I query below view

select * from V$DATABASE_BLOCK_CORRUPTION ;

INST_ID FILE# BLOCK# BLOCKS CORRUPTION_CHANGE# CORRUPTION_TYPE 1 71 1.340.426 1 0 CHECKSUM 1 81 1.338.102 1 0 CHECKSUM 1 101 1.335.514 1 0 CHECKSUM 1 139 1.332.486 1 0 CHECKSUM 1 192 1.074.210 1 0 CHECKSUM 1 234 980.706 1 0 CHECKSUM 1 284 974.490 1 0 CHECKSUM 1 307 1.060.358 1 0 CHECKSUM 1 309 1.047.338 1 0 CHECKSUM 1 334 926.887 1 0 CHECKSUM 1 354 882.790 1 0 CHECKSUM 1 413 1.205.042 1 0 CHECKSUM 1 440 1.106.642 1 0 CHECKSUM 1 740 1.243.698 1 0 CHECKSUM

I was trying to check if the blocks are on free space or occupied by any object.

Even if the blocks were occupied by any object and if that object was dropped the block would still be in corrupted formatted unless Oracle reuses it.

If the blocks are indeed in free space then we use a document to manually format the block.

So the output of these queries is important.

SELECT e.owner, e.segment_type, e.segment_name, e.partition_name, c.file# , greatest(e.block_id, c.block#) corr_start_block# , least(e.block_id+e.blocks-1, c.block#+c.blocks-1) corr_end_block# , least(e.block_id+e.blocks-1, c.block#+c.blocks-1) – greatest(e.block_id, c.block#) + 1 blocks_corrupted , null description FROM dba_extents e, v$database_block_corruption c WHERE e.file_id = c.file# AND e.block_id <= c.block# + c.blocks - 1 AND e.block_id + e.blocks - 1 >= c.block#; SELECT s.owner, s.segment_type, s.segment_name, s.partition_name, c.file# , header_block corr_start_block# , header_block corr_end_block# , 1 blocks_corrupted , ‘Segment Header’ description FROM dba_segments s, v$database_block_corruption c WHERE s.header_file = c.file# AND s.header_block between c.block# and c.block# + c.blocks – 1; SELECT null owner, null segment_type, null segment_name, null partition_name, c.file# , greatest(f.block_id, c.block#) corr_start_block# , least(f.block_id+f.blocks-1, c.block#+c.blocks-1) corr_end_block# , least(f.block_id+f.blocks-1, c.block#+c.blocks-1) – greatest(f.block_id, c.block#) + 1 blocks_corrupted , ‘Free Block’ description FROM dba_free_space f, v$database_block_corruption c WHERE f.file_id = c.file# AND f.block_id <= c.block# + c.blocks - 1 AND f.block_id + f.blocks - 1 >= c.block# order by file#, corr_start_block#;

After using upper queries We run below queries:

SQL>Select file#,block# from v$database_block_corruption ;

From rman:

RMAN > Validate datafile block ; PS: You can use below sql’s for your issues select ‘Validate datafile ‘|| file# || ‘ block ‘||block# ||’;’ FROM v$database_block_corruption; select ‘Select * from dba_free_space where file_id=’|| file# || ‘ and ‘||block# ||’ between block_id and block_id + blocks -1;’ FROM v$database_block_corruption;

So our issue we just replaced the file no with file# and block no with block# ;

The above will run the validate only on that file and block and not entire database.

So we just started ti run those queries our first corrupted block

We just run for single file and output as below

rman connect target / ( Do not connect catalog)

RMAN > Validate datafile 71 block 1340426 ; Validate datafile 71 block 1340426; List of Datafiles ================= File Status Marked Corrupt Empty Blocks Blocks Examined High SCN —- —— ————– ———— ————— ———- 71 FAILED 0 0 1 0 File Name: +ORADATA/PROD/datafile/apps_ts_xxcustom_data.365.739618975 Block Type Blocks Failing Blocks Processed ———- ————– —————- Data 0 0 Index 1 1 Other 0 0

So this indicates the block is still corrupted.

Its showing failing block for index.

I run the following:

SQL>Select file#,block# from v$database_block_corruption where file#=71 ; SQL>Select * from dba_free_space where file_id=71 and between block_id and block_id + blocks -1 ;

If this returns row then the block is in free space.

Query return:

APPS_TS_XXCUSTOM_DATA 71 1337856 24903680 3040 71

The good news is this block is in free space. Which mean when the index has dropped the block was still in the corrupted state but since it was not reused by any other segment oracle still believe’s it to be corrupt.

Once this block is reused oracle would autoformat this block.

So We can do a block recovery. By using the backups taken to tape or disk

As I mention previously We should first use below queries for other corrupted blocks

SQL>Select file#,block# from v$database_block_corruption ;

From rman

RMAN > Validate datafile block ;

So replace the file no with file# and block no with block# ;

Once done

Select * from dba_free_space where file_id=71 and between block_id and block_id + blocks -1 ;

For example

V$database_block_corruption

2 81 1.338.102 1 0 CHECKSUM

2 101 1.335.514 1 0 CHECKSUM

Rman> backup validate datafile 81 block 1338102 ; SQL>Select * from from dba_free_space where file_id=81 and 1338102 between block_id and block_id + blocks -1 ;

So corrupt blocks are not occupied by any objects. So My production database activities would not be affected.

However, since the blocks have still not been reused rman still considers them as corrupted. So what We have to do?

We should now go with the rman block recovery command.

Please note block recover command would restore archivelogs required for block recovery to disk for doing a block recovery of the affected block.

You can do the following for block recover:

A single command will recovery all blocks affected in v$database_block_corruption ;

Rman> run { allocate channel c1 device type disk ; allocate channel c2 device type disk ; blockrecover corruption list ; }

Or Alternate command is

Rman>recover corruption list ;

In these steps, We faced first block corruption recovery took 1 hour 06 min., second block corruption took almost 1 hour. We started to thing the recovery process could be more than 10 hours. But After 2th recover other block corruption took less than 5-10 min.

So the expected behavior is while recovering corruption list process end, dynamic view v$database_block_corruption will be updated. But We see that after rman complete process this view still show us there are corruption block available.

While We started to run validate command again view became empty

rman target / nocatalog

RMAN> Validate datafile 71 block 1340426;

So what is the cause of this corruption? What is a suggestion to prevent this error?

By default db_block_checksum is true.

When dbwr writes blocks to disk it does a xor of bytes within the blocks. Once the block is written to disk no oracle process modifies the blocks unless its re-read to buffer.

Before the block is read back to buffer the server process does a recomputation of the checksum value by doing xor of the bytes within the block.

This should match with the value stored in the block by dbwr process as no oracle process has modified the blocks.

If there is a mismatch in this value it clearly indicates some OS/hardware issue which has overwritten some contents of the blocks when they were on disk.

Also, any corruption by Oracle would be through redo changes. However, we see rman block recovery has gone fine.

Clearly indicating the redo changes vectors were good.You can set db_block_checking=typical …. however, these parameters would have some performance impact around 2 to 10%.

Or set DB_ULTRA_SAFE

Refer

New Parameter DB_ULTRA_SAFE introduce In 11g [ID 465130.1]

These parameters would help detect corruption at earlies in memory and prevent on occasion corrupted block from written to disk.

Again these might also have some performance impact around 2-10% depending on your application

References:

New Parameter DB_ULTRA_SAFE introduce In 11g [ID 465130.1]

Known Corruption issues caused by 3rd party Software Provider [ID 1323649.1]

Intermittent Ora-19566 When Using RMAN Backup [ID 549256.1]

Ext/Pub RMAN 9i Block-Level Media Recovery – Concept & [ID 144911.1 ]

ORA-19566: exceeded limit of 0 corrupt blocks for file

Backup Failing with following error message

ORA-19566: exceeded limit of 0 corrupt blocks for file +MGMT_DATA/RMANCAT/DATAFILE/sysaux.257.893695553

recovering the corrupt blocks from dataguard standby

RMAN> list failure; using target database control file instead of recovery catalog Database Role: PRIMARY List of Database Failures ========================= Failure ID Priority Status Time Detected Summary ———- ——– ——— ——————- ——- 425681 HIGH OPEN 2020-10-27 21:01:52 Datafile 3: ‘+MGMT_DATA/RMANCAT/DATAFILE/sysaux.257.893695553’ contains one or more corrupt blocks

RMAN> advise failure; Database Role: PRIMARY List of Database Failures ========================= Failure ID Priority Status Time Detected Summary ———- ——– ——— ——————- ——- 425681 HIGH OPEN 2020-10-27 21:01:52 Datafile 3: ‘+MGMT_DATA/RMANCAT/DATAFILE/sysaux.257.893695553’ contains one or more corrupt blocks analyzing automatic repair options; this may take some time allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=203 device type=DISK analyzing automatic repair options complete Mandatory Manual Actions ======================== no manual actions available Optional Manual Actions ======================= 1. Shut down, mount the database and try flush redo using ALTER SYSTEM FLUSH REDO TO ‘standby name’ command. Then perform a Data Guard role change (failover). Available standbys: rmancat_stby. Automated Repair Options ======================== Option Repair Description —— —————— 1 Restore from standby and recover datafile 3 Strategy: The repair includes complete media recovery with no data loss Repair script: /u01/app/orarman/diag/rdbms/rmancat/RMANCAT/hm/reco_3478512818.hm RMAN> exit Recovery Manager complete.

vi /u01/app/orarman/diag/rdbms/rmancat/RMANCAT/hm/reco_3478512818.hm # restore from standby and recover datafile sql ‘alter database datafile 3 offline’; restore ( datafile 3 from service “RMANCAT_UXB” ); recover datafile 3; sql ‘alter database datafile 3 online’; ~

[orarman@a04544 (LMT:RMANCAT) ~ ] $ rman target / Recovery Manager: Release 12.1.0.1.0 – Production on Mon Nov 16 14:22:44 2020 Copyright (c) 1982, 2013, Oracle and/or its affiliates. All rights reserved. connected to target database: RMANCAT (DBID=3930800159) RMAN> sql ‘alter database datafile 3 offline’; using target database control file instead of recovery catalog sql statement: alter database datafile 3 offline RMAN> restore ( datafile 3 from service “RMANCAT_UXB” ); Starting restore at 2020-11-16 14:23:00 allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=203 device type=DISK channel ORA_DISK_1: starting datafile backup set restore channel ORA_DISK_1: using network backup set from service RMANCAT_UXB channel ORA_DISK_1: specifying datafile(s) to restore from backup set channel ORA_DISK_1: restoring datafile 00003 to +MGMT_DATA/RMANCAT/DATAFILE/sysaux.257.893695553 channel ORA_DISK_1: restore complete, elapsed time: 00:01:35 Finished restore at 2020-11-16 14:24:36 RMAN> recover datafile 3; Starting recover at 2020-11-16 14:24:55 using channel ORA_DISK_1 starting media recovery media recovery complete, elapsed time: 00:00:01 Finished recover at 2020-11-16 14:24:56 RMAN> sql ‘alter database datafile 3 online’; sql statement: alter database datafile 3 online

RMAN> select * from v$database_block_corruption; no rows selected

$ dbv userid=system/xxxxxx file=+MGMT_DATA/RMANCAT/DATAFILE/sysaux.257.893695553 blocksize=8192 DBVERIFY: Release 12.1.0.1.0 – Production on Mon Nov 16 14:34:36 2020 Copyright (c) 1982, 2013, Oracle and/or its affiliates. All rights reserved. DBVERIFY – Verification starting : FILE = +MGMT_DATA/RMANCAT/DATAFILE/sysaux.257.893695553 DBVERIFY – Verification complete Total Pages Examined : 3715840 Total Pages Processed (Data) : 1805077 Total Pages Failing (Data) : 0 Total Pages Processed (Index): 1786084 Total Pages Failing (Index): 0 Total Pages Processed (Lob) : 61076 Total Pages Failing (Lob) : 0 Total Pages Processed (Other): 39796 Total Pages Processed (Seg) : 0 Total Pages Failing (Seg) : 0 Total Pages Empty : 23807 Total Pages Marked Corrupt : 0 Total Pages Influx : 0 Total Pages Encrypted : 0 Highest block SCN : 0 (0.0) [orarman@a04544 (LMT:RMANCAT) log ] $

RMAN ORA-19566 exceeded limit

When we get a backup with Rman, if there is a damaged block on a datafile, the ORA-19566 error will be received and the backup operation will not be completed. It will generate error message as below.

ORA-19566: exceeded limit of 0 corrupt blocks for file +DATA/orcl/datafile/users.369.864669603

First, the corrupt block should be corrected. You can use the following article.

“How To Detect and Repair Block Corruption in Oracle”

If the corrupted block does not interfere with the functioning of the database, but it causes problems with the backup, the MAXCORRUPT value can be set as follows, and the backup operation can be completed successfully.

In our backup script, we set the maxcorrupt value for the corresponding datafile up to the number of corrupted blocks.

RMAN> RUN{ SET MAXCORRUPT FOR DATAFILE 4 to 1; BACKUP DATABASE; } 1 2 3 4 RMAN > RUN { SET MAXCORRUPT FOR DATAFILE 4 to 1 ; BACKUP DATABASE ; }

For more than one datafile the maxcorrupt can be set with one command as follows.

RMAN> RUN{ SET MAXCORRUPT FOR DATAFILE 4,6,9 to 1; BACKUP DATABASE; } 1 2 3 4 RMAN > RUN { SET MAXCORRUPT FOR DATAFILE 4 , 6 , 9 to 1 ; BACKUP DATABASE ; }

ORA-19566: Exceeded Limit Of 0 Corrupt Blocks For File …

Modified on: Fri, 23 Feb, 2018 at 9:31 AM

Symptoms

DS-Client backup of Oracle server fails with the following RMAN error:

“ORA-19566: Exceeded Limit Of 0 Corrupt Blocks For File …”

Cause

The user specified limit of allowable corrupt blocks was exceeded while reading the specified datafile for a datafile copy or backup.

Workaround

Action: None. The copy or backup operation fails. The session trace file contains detailed information about which blocks were corrupt.

For more information, refer to the Oracle documentation: Metalink document #457422.1

2974595 – ORA-19566: exceeded limit of 0 corrupt blocks for file

2974595 – ORA-19566: exceeded limit of 0 corrupt blocks for file

Symptom

Performing a backup with RMAN terminates with the following error: ORA-19566: exceeded limit of 0 corrupt blocks for file

Read more…

Environment

SAP systems with Oracle database

Not restricted to a product or product version

Keywords

RMAN-03009, ORA-19566, backup, corruption , KBA , BC-DB-ORA , Oracle , BC-DB-ORA-DBA , Database Administration , Problem

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