Corruption DataFile

Similar Questions

• How to diagnose and recover corrupt datafile?

  DBMS: Oracle v.9.2.0.1.0

  Operating system: MS Server 2003 R2 SP2 x 86

  Problem: The database start to stop every few minutes. I start checking and found one and the largest of the two data files is probably damaged. Now, I don't know how to fix this data file.

  First of all, I look in the alert.log and see that ^.

  ...

  Mon Jul 29 11:02:03 2013

  SMON: enabling the recovery of tx

  Mon Jul 29 11:02:03 2013

  Database character set is CL8MSWIN1251

  off replication_dependency_tracking (no replication multimaster async found)

  Completed: alter database open

  Mon Jul 29 11:02:42 2013

  KCF: writing / open error blocks = 0x3c009f = 1 online

  file = 4 F:\ORACLE\ORADATA\ORCL\USERS_1.ORA

  error = txt 27069: ' OSD-04026: invalid parameter passed. (OS 3932319) "

  Mon Jul 29 11:02:42 2013

  Errors in the c:\oracle\admin\orcl\bdump\orcl_dbw0_3604.trc file:

  ORA-01242: data file failed to support: database in NOARCHIVELOG mode

  ORA-01114: IO error to the file 4 (block # 3932319) writing block

  ORA-01110: data file 4: "F:\ORACLE\ORADATA\ORCL\USERS_1.ORA".

  ORA-27069: skgfdisp: try to do i/o beyond the scope of the file

  OSD-04026: invalid parameter passed. (OS 3932319)

  DBW0: end of litigation because of the error 1242

  Instance terminated by DBW0, pid = 3604

  C:\oracle\admin\orcl\bdump\alert_orcl.log dump file

  ...

  So I lit archivelog and open the database but it continue to stop when someone calls to certain DB objects.

  Then I check v$ headers:

  SQL > select file #, status, recover, fuzzy, nom_tablespace, to_char(CHECKPOINT_CHANGE#), name from v$ datafile_header;

  FOLDER # STATUS REC FUZ NOM_TABLESPACE TO_CHAR(CHECKPOINT_CHANGE#) NAME

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

  1 YES SYSTEM 9679059694215 F:\ORACLE\ORADATA\ORCL\SYSTEM ONLINE. ORA

  2 ONLINE WITHOUT CANCELING YES F:\ORACLE\ORADATA\ORCL\UNDO 9679059694215. ORA

  3 NO YES 9679059694215 F:\ORACLE\ORADATA\ORCL\USERS USERS ONLINE. ORA

  4 YES YES 9679059697551 F:\ORACLE\ORADATA\ORCL\USERS_1.ORA USERS OFFLINE

  For some reason, USERS in USERS_1.ORA is offline and marked as requiring recovery.

  I tried to recover datafile, but got some errors:

  SQL > recover datafile 'F:\ORACLE\ORADATA\ORCL\USERS_1.ORA ';

  ORA-00283: cool cancelled due to errors

  ORA-01115: reading block IO file error 4 (block # 3932319)

  ORA-01110: data file 4: "F:\ORACLE\ORADATA\ORCL\USERS_1.ORA".

  ORA-27069: skgfdisp: try to do i/o beyond the scope of the file

  OSD-04026: invalid parameter passed. (OS 3932319)

  Who have look scary to me.

  I try to check the data file:

  dBV blocksize = 16384 logfile=F:\oracle\oradata\orcl\dbvlog.txt file=F:\oracle\oradata\orcl\users_1.ora

  The result of the check was unexpected:

  DBVERIFY: Release 9.2.0.1.0 - Production on Tue Jul 30 05:03:26 2013

  Copyright (c) 1982, 2002, Oracle Corporation.  All rights reserved.

  DBVERIFY - verification starting: FILE = F:\oracle\oradata\orcl\users_1.ora

  DBVERIFY - verification complete

  Total Pages reviewed: 3932320

  Total number of Pages processed (data): 94051

  Total Pages failing (data): 0

  Total number of Pages processed (Index): 19378

  Total Pages failing (Index): 0

  Total number of Pages processed (other): 3753059

  Total number of Pages processed (Seg): 0

  Total Pages failing (Seg): 0

  Total Pages empty: 65832

  Total Pages marked corrupt: 0

  Total Pages influx: 0

  Now I have this tablespace offline in the data file probably not corrupted and no idea how get DB in normal condition.

  UPD: I have data validation by RMAN:

  RMAN > BACKUP VALIDATE DATABASE.

  From backup 30 July 13

  using controlfile target instead of recovery catalog database

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: sid = 11 devtype = DISK

  channel ORA_DISK_1: from full datafile backupset

  channel ORA_DISK_1: specifying datafile (s) in backupset

  including current controlfile in backupset

  input datafile fno = name=F:\ORACLE\ORADATA\ORCL\USERS_1.ORA 00004

  input datafile fno = name 00002 = F:\ORACLE\ORADATA\ORCL\UNDO. ORA

  input datafile fno = 00003 name = F:\ORACLE\ORADATA\ORCL\USERS. ORA

  input datafile fno = 00001 name = F:\ORACLE\ORADATA\ORCL\SYSTEM. ORA

  channel ORA_DISK_1: complete set of backups, time: 00:33:06

  Backup finished at 30 July 13

  Which would have been check my DB and put the information of blocks corrupt a v $ DATABASE_BLOCK_CORRUPTION, but no! There is nothing:

  SQL > select * from V$ DATABASE_BLOCK_CORRUPTION;

  no selected line

  However, database doesn't open, until I have bad data offline file ^.

  SQL > alter database datafile 'F:\ORACLE\ORADATA\ORCL\USERS_1.ORA' online;

  Database altered.

  SQL > alter database open;

  change the database open

  *

  ERROR on line 1:

  ORA-01113: file 4 should media recovery

  ORA-01110: data file 4: "F:\ORACLE\ORADATA\ORCL\USERS_1.ORA".

  Post edited by: Llywelyn.yv

  I finally found my case corect solution:

  Refer to Metalink notes:

  Note: 158836.1 "Database crashes when DATAFILE is Auto extended from 4 GB"

  Note: 1668488 "UNABLE TO RECOVER DATAFILE THAT HAS AUTO EXTENDED ON A 4 GB LIMIT.

  Bug is fixed in version 8.1.7.4.1, 9.0.1.4.0 and 9.2.0.2.1.

  So I installed the patch, the complete catpatch.sql and catexp.sql and the WHOLE base become to open without a problem)

• Corrupt DB UAT nonsystem disk. How to restore it Prod by rman

  I have an env UAT. some non-corrupt system (dbfile one-to-one) tablespace DataFile
  
  resemble errors below and the PB could just be in a State of mounting.
  
  Mounted database.
  ORA-01157: cannot identify/lock data file 4 - see DBWR trace file
  ORA-01110: data file 4: ' D:\ORACLE_DATA\DATAFILES\ORCL\USERS01. DBF'
  
  When I took them in offline mode, the PB could be opened.
  
  I could not use rman to recover, even if it is in archivelog mode. This is because as some corruptions in newspaper Archives.
  
  Now, I would like to recover from prod in db.
  How can I do this using rman / export and import. Version of my DB is 10g R2
  
  I appreciate if there is no reference and instructions from each of you.
  
  Thank you very much

  Incomplete recovery: for the entire base.

  If you have RMAN backup your UAT and archive available until corruption datafile set then you can retrieve the file data/tablespace.

  OR

  Offline and drop the corrupted tablespaces.

  Create a new table space.

  Export the objects of your production database.

  Concerning
  Asif Kabir

• block corruptioin after restore rman

  Thank you for taking my question!
  
  Oracle Enterprise Edition 11.1.0.7 on Windows 2008. Online backups using Rman TABLET.
  
  Can someone give me some ideas on why SYSAUX data block should be damaged after a rman recovery?
  Here is my script. Am I missing something? Should I be physically removing it again? All ideas welcome?
  
  Thank you!
  Kathie
  
  RMAN > restore to the seq = 123
  recover up to seq = 123
  ALTER database open resetlogs;
  
  
  Background:
  I had to do a cover of rman the other day to restore our database on the eve. After recovery, the sysaux table has become logically corrupt. I tried to solve the corruption of data with rman, but he said he just couldn't after reading through 6 days of backups. I ended up remove the database, re-create the database and restore from a previous export of a few hours takien.
  
  I now have a database to test the rman recovery. Database has been to the top and rman backups (compressed) running for several days. I tried to recover after day and SYSAUX again a logical corruption. I tried to use Rman to recover damaged data, but it failed.
  
  
  I deleted the database and recreated. Has taken several backups rman (this time not compressed) online. 3rd was taken over this time a few hours back. This time everything worked - no block sysaux corruption but why? The only difference is the recovery uncompressed backups and recovery was a shorter time. Why?

  On metalink (or My Oracle Support), there is a note on a similar problem:

  RMAN Duplicate Database causes Corruption Datafile SYSAUX
  DOC - ID: 794705.1

  Interesting, because the note the problem only occurs when the backups are compressed.

  Werner

• DataFile recovery not to repair corrupted block

  Hello
  Towing of data files are corrupt data block and recovery of files not repairing block corruption.
  

  sql 'alter database datafile 2, 8 offline';
     restore datafile 2, 8;
     recover datafile 2, 8;
     sql 'alter database datafile 2, 8 online';

  The media recovery complete successfully without warning.
  But, after recovery when I try:

   validate check logical datafile 8,2; 

  It shows again block corruptions. I tried several times to recovery, and the same appears when I query V$ database_block_corruption.
  I also tried the same thing with RMAN > failure of the repair and the result is always the same.
  
  I tried RMAN incremental and full after that it and two of them have not

   ORA-00600: internal error code, arguments: [17114], [0x2B58288E0BB8], [], [], [], [], [], []
  ORA-00600: internal error code, arguments: [17147], [0x2B58288E0BB8], [], [], [], [], [], []

  It seems that the data files are not recovered and block corruption after the restoration and recovery.
  
  An of this datafile is sysaux. and the version of DB is g 11, standard edition.
  

  BANNER
  Oracle Database 11g Release 11.1.0.6.0 - 64bit Production
  PL/SQL Release 11.1.0.6.0 - Production
  CORE     11.1.0.6.0     Production
  TNS for Linux: Version 11.1.0.6.0 - Production
  NLSRTL Version 11.1.0.6.0 - Production

  Thank you
  
  Published by: najet 11 June 2010 20:05
  
  Published by: najet June 11, 2010 20:11

  I suggest you to contact the Oracle Support

• How to corrupt a datafile?

  Hello
  in 10g, how to corrupt a datafile?
  
  I need to repeat a senario of corruption.
  
  Thank you.

  Hello

  You can copy the data file while the database is alive.

  To be sure to corrupt you can update a table located on this data file.

  Then, you stop (stop) the database and you replace the data file by
  the "living" copy

  Then try to open the database. Normally it will ask you for a media recovery for
  This data file.

  Of course, do it just for the test or educational purpose on a database that you can lose.

  Hope this helps.
  Best regards
  Jean Valentine

• How to retrieve the database SYSTEM datafile get corrupted?

  Database is in ARCHIVELOG mode, and the system tablespace data file is corrupt. Until when can I recover the database?
  
  A. until the last commit.
  (B) until the moment where you are recovering.
  (C) until the moment when the data file has been corrupted.
  D. you may not recover the SYSTEM tablespace and you must be re - create the database.
  
  
  --
  and 1 more doubt:
  
  If redologfiles are not multiplexed and blocks redolog get damaged in Group 2, archiving stops and. All redolog files are filled and database activity is interrupted.
  DBWR wrote everything on the drive. What command allows you to go further?
  
  A. retrieve the block logfile Group 2;
  B. change the database drop logfile Group 2;
  C. change the database group claire logfile 2;
  D. change the group database recover logfile 2;
  E. change the database clear no archived lofile Group 2;
  
  Published by: user642367 on September 18, 2008 20:45

  1A. Because the DB is in archivelog mode, so you can always restore and recover the entire DB including system tablespace datafile to latter YVERT generated provided that redo record is available in in line/Archives log files.

  2 E. Because only redolog corrupt archive so only proceed where a blockage of the db is obvious, then, in order to proceed further you must clear (a journal archived file) online and then db will work as usual. There you must take a full backkup of DB (cold backup insofar as possible) as soon as possible after the issuance of this order. Like now, you do not repeat information in the archivelog files to recover the db in case of crash.

  Please go through Oracle 10 g DB Administrator's guide (available on OTN) for more details.

  Thank you

• ORA-19599: block number 45289 is corrupt in the backup piece

  OS: RHEL 5.7 64bits

  Database: 11.1.0.7

  Hi all

  I have problems to restore RMAN backup on test computer. The restore command is sick of following error message:

  ORA-19599: block number 45289 is corrupted in the backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927509_1 item

  I already checked the piece back on prod and it seems OK:

  RMAN > validate backupset 3840;

  From post on 27 February 15

  using channel ORA_DISK_1

  using the ORA_DISK_2 channel

  channel ORA_DISK_1: starting from the validation of the data file backup set

  channel ORA_DISK_1: reading of the backup/oradata/ERP/RMAN_BACKUP/RMAN_ERP_20150227_15927509_1 element

  channel ORA_DISK_1: piece handle = / oradata/ERP/RMAN_BACKUP/RMAN_ERP_20150227_15927509_1 tag = TAG20150227T040007

  channel ORA_DISK_1: restored the backup part 1

  channel ORA_DISK_1: validation complete, duration: 00:02:45

  Finished post on 27 February 15

  Restore validate command also fails on the test machine:

  RMAN > restore database validation verification logic;

  From restoration to 27 February 15

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

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: SID = 779 type device = DISK

  allocated channel: ORA_DISK_2

  channel ORA_DISK_2: SID = 778 type device = DISK

  channel ORA_DISK_1: sweeping datafile copy /oracle/DEV/db/apps_st/data/a_ref03.dbf

  channel ORA_DISK_2: from the validation of the data file backup set

  channel ORA_DISK_2: reading of the backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927510_1 element

  channel ORA_DISK_1: sweeping datafile copy /oracle/DEV/db/apps_st/data/a_txn_data05.dbf

  channel ORA_DISK_2: ORA-19870: error when restoring backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927510_1 piece

  ORA-19599: block number 233296 is corrupted in the backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927510_1 item

  channel ORA_DISK_2: scanning datafile copy /oracle/DEV/db/apps_st/data/a_int01.dbf

  channel ORA_DISK_1: starting from the validation of the data file backup set

  channel ORA_DISK_1: reading of the backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927509_1 element

  channel ORA_DISK_1: ORA-19870: error when restoring backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927509_1 piece

  ORA-19599: block number 45289 is corrupted in the backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927509_1 item

  switch to the previous backup

  My confusion is why validate backupset succeeds the prod and the same backupset presents corruption block during test.

  Kind regards

  Vinod

  Maybe the backuppiece has been altered in the transfer to the DEV machine?  Run a checksum on the backuppiece on both machines and compare.

  Hemant K Collette

• Attach a database without the corrupt log file

  Hello

  IM asking if it is possible that to fix one. MDF datafile without the. DFL

  I want that because I have a corrupt log file nd when I attach the database triggers the following error: -.

  -----------

  The log cannot be rebuilt because there were open transactions / users when the database has been arrested, no checkpoint occurred to the database, or the database was read-only. This error can occur if the transaction log file has been manually deleted or lost due to a hardware failure or the environment.

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

  I just need the data of this file that I need and I don't have the damaged log file

  I tried

  sp_attach_single_file_db "new_2009", "C:\Data\new_2009_Data.MDF".

  but the same error comes back.

  Note Please that I have no recent backup suggest to restore the database from backup

  Thank you

  One of the commands and restore types should help you, good luck...

  Restore the full backup WITH RECOVERY

  Note: as mentioned above this option is the default, but you can specify as follows.

  Command:

  RESTORE DATABASE AdventureWorks FROM DISK = 'C:\AdventureWorks.BAK '.

  WITH RECOVERY

  GO

  Recover a database that is in the State of 'restore '.

  Note: The following command will take a database that is in the State of 'restoration' and make it available to end users.

  Command:

  RESTORE DATABASE AdventureWorks WITH RECOVERY

  GO

  Restore multiple backups using WITH RECOVERY for the last backup

  Note: The first restoration uses the NORECOVERY option restores additional is possible.  The second command restores the transaction log and then brings the database online for the use of the end user.

  Command:

  RESTORE DATABASE AdventureWorks FROM DISK = 'C:\AdventureWorks.BAK '.

  WITH NORECOVERY

  GO

  RESTORE LOG AdventureWorks FROM DISK = 'C:\AdventureWorks.TRN. '

  WITH RECOVERY

  GO

  More information that you can dig up resources directly connected with SQL Server databases and the MS SQL Server database no matter what version...

  http://www.SQLServerCentral.com/forums/Topic1602448-266-1.aspx

  http://www.filerepairforum.com/Forum/Microsoft/Microsoft-AA/SQL-Server/1413-SQL-database-in-suspect-mode

  https://www.repairtoolbox.com/sqlserverrepair.html SQL Server repair Toolbox

• How to find the physical corruption

  
  Hello

  I backup sed post order for physical corruption in my database as follows.

  backup validate check logical database;
  
  

  After his command, I asked v$ database_block_corruption.

  12:04:47 SQL> select * from v$database_block_corruption;
       FILE#     BLOCK#     BLOCKS CORRUPTION_CHANGE# CORRUPTIO
  ---------- ---------- ---------- ------------------ ---------
           1      11477          2          228760588 LOGICAL
           1      11514          1          228760329 LOGICAL
  12:05:09 SQL>
  
  

  I'm looking for if it is a physical corruption of logical corruption?

  I also used the dbv command to check my system datafile (file # 1). And the output is as foolows

  D:\>dbv file=D:\ORACLE\ORADATA\OPERA\SYSTEM01.DBf
  DBVERIFY: Release 10.2.0.4.0 - Production on Mon Nov 18 11:56:23 2013
  Copyright (c) 1982, 2007, Oracle.  All rights reserved.
  DBVERIFY - Verification starting : FILE = D:\ORACLE\ORADATA\OPERA\SYSTEM01.DBf
  DBV-00200: Block, DBA 4205781, already marked corrupt
  DBV-00200: Block, DBA 4205782, already marked corrupt
  DBV-00200: Block, DBA 4205818, already marked corrupt
  
  DBVERIFY - Verification complete
  Total Pages Examined         : 168960
  Total Pages Processed (Data) : 127180
  Total Pages Failing   (Data) : 0
  Total Pages Processed (Index): 25248
  Total Pages Failing   (Index): 0
  Total Pages Processed (Other): 2440
  Total Pages Processed (Seg)  : 0
  Total Pages Failing   (Seg)  : 0
  Total Pages Empty            : 14092
  Total Pages Marked Corrupt   : 3
  Total Pages Influx           : 0
  Highest block SCN            : 245793757 (0.245793757)
  
  

  As dbv always checks the physical corruption, but how can I make sure using RMAn that whatever physical corruption of only logical corruption? Thank you

  Alert log say something like the following

  Sat Sep 14 00:22:50 2013

  Errors in the d:\oracle\admin\opera\bdump\opera_p008_3916.trc file:

  ORA-01578: block ORACLE (corrupted file # 1, block # 11478) data

  ORA-01110: data file 1: ' D:\ORACLE\ORADATA\OPERA\SYSTEM01. DBF'

  ORA-10564: tablespace SYSTEM

  ORA-01110: data file 1: ' D:\ORACLE\ORADATA\OPERA\SYSTEM01. DBF'

  "ORA-10561: TRANSACTION SUCCESSFUL DATA block type ' BLOCK ', object # 5121 data."

  ORA-00607: an internal error occurred in making a change to a data block

  [ORA-00600: internal error code, arguments: [kddummy_blkchk], [1], [11478], [6101], [], [], []]

  SAQ

  Hello

  DBVerify reports two logical corruptions and physical intra-block by default. A good starting point would be to go through the MOS score below to understand.

  Logical and physical block corruptions. Everything you wanted to know on this subject. (Doc ID 840978.1)

  Basically, you will not be able to read data in the blocks in physical corruption corrupt some time may be able to read the data into logical corruption.

  In addition, DBVerify report the errors of DBV-200/201 to logical corruption.

  HTH

  Abhishek

• ORA-19599: block number 1985 is corrupt in archived log + FG.

  Hi team,
  
  I couldn't take the RAC database archivelog backup. Please help me
  
  RMAN > VALIDATE the BACKUP DATABASE ARCHIVELOG ALL;
  
  From backup 24 March 13
  using channel ORA_DISK_1
  channel ORA_DISK_1: from full datafile backupset
  channel ORA_DISK_1: specifying datafile (s) in backupset
  input datafile fno = 00001 name=+DG1/kvxcprd/datafile/system.260.777756857
  input datafile fno = name=+DG1/kvxcprd/datafile/sysaux.268.777756857 00003
  input datafile fno = name=+DG1/kvxcprd/datafile/undotbs1.263.777756857 00002
  input datafile fno = 00005 name=+DG1/kvxcprd/datafile/undotbs2.264.777756983
  input datafile fno = name=+DG1/kvxcprd/datafile/users.267.777756857 00004
  channel ORA_DISK_1: complete set of backups, time: 00:00:25
  channel ORA_DISK_1: from archive newspaper backupset
  channel ORA_DISK_1: specification of archive log backup set
  archive log entry thread = 2 sequence 17 recid = 26 = 810915691 stamp =
  RMAN-00571: ===========================================================
  RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =.
  RMAN-00571: ===========================================================
  RMAN-03009: failure of the backup command on the channel ORA_DISK_1 at 24/03/2013-14:37:11
  ORA-19599: block number 1985 is corrupted in +FG/kvxcprd/archivelog/2013_03_24/thread_2_seq_17.269.810915689 archived journal
  
  RMAN > backup archivelog all;
  
  From backup 24 March 13
  Current archived log
  using channel ORA_DISK_1
  RMAN-00571: ===========================================================
  RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =.
  RMAN-00571: ===========================================================
  RMAN-03002: failure of the backup to 24/03/2013-14:39:52 command
  ORA-19563: file header validation failure
  
  Thank you and best regards,
  
  
  Published by: 995796 on March 24, 2013 02:26
  
  Published by: 995796 on March 24, 2013 02:27

  You must exclude this backup archivelog. Rename the archivelog (via asmcmd) and then run OVERLAP ARCHIVELOG ALL while Oracle would mark it as 'Out of date' when it does not find the archivelog. (You can also run an ARCHIVELOG DELETE or REMOVE the ARCHIVELOG EXPIRES to logically remove).

  You should document this archivelog missing so that any required later retrieval knows this archivelog isn't available, so a point in time to recover to any point of the last backup before this archivelog to a point in time of the archivelog or as the result of it would not be possible until the next backup.

  Needless to say, take a fresh database backup.

  Hemant K Collette

• ORA-19599: block number 782 is corrupt in the backup piece

  Hi Experts,
  I use Database 11g & restore the backup to another location.
  
  RMAN > RESTORE CONTROLFILE FROM ' / u01/RMAN/forstandby_0acekubq_1_1 ";
  RMAN > catalog starts by ' / u01/RMAN /';
  RMAN > restore database;
  channel ORA_DISK_1: backup/u01/RMAN/forstandby_09ceku8r_1_1 piece reading
  channel ORA_DISK_1: ORA-19870: error when restoring backup/u01/RMAN/forstandby_09ceku8r_1_1 piece
  ORA-19599: number 782 block is corrupted in the backup/u01/RMAN/forstandby_09ceku8r_1_1 item
  
  switch to the previous backup
  
  RMAN-00571: ===========================================================
  RMAN-00569: = ERROR MESSAGE STACK FOLLOWS =.
  RMAN-00571: ===========================================================
  RMAN-03002: failure of the restore command at 23/10/2012 19:24:11
  RMAN-06026: some targets not found - abandonment of restoration
  RMAN-06023: no backup or copy of the file 4 found to restore
  RMAN-06023: no backup or copy of datafile 3 found to restore
  RMAN-06023: no backup or copy of datafile 2 found to restore
  RMAN-06023: no backup or copy of datafile 1 found to restore
  
  What is the problem someone guide me...

  Hello;

  Use this command to check potential physical and logical corruption:

  RMAN> restore database validate check logical;
  

  In Oracle 11 possible to repair/recovery corrupted blocks.

  This link should help:

  http://www.oracleracexpert.com/2011/09/repair-block-corruptions-using-data.html

  Block recovery is also possible.

  This link should help:

  http://www.oracleracexpert.com/2009/08/block-recovery-using-RMAN.html

  Best regards

  mseberg

• Corrupted file system

  Hello
  
  A required clarification.
  
  If the file system data is corrupted, what is the way before raising the DB up and running.
  
  Thank you
  Sheen

  With rman, restore system tablespace on its original location:
  [oracle@localhost ~] target rman $ /.
  RMAN > startup mount;
  RMAN > restore tablespace system;
  RMAN > recover tablespace system;
  RMAN > alter database open;

  On a different site:
  [oracle@localhost ~] target rman $ /.
  RMAN > startup mount;
  RMAN > run {}
  the value of newname for datafile 1 to ' / home/oracle/app/oracle/oradata/orcl/non_default_location/system01.dbf';
  system restore of tablespace;
  switch datafile;
  recover the system tablespace.
  ALTER database open;
  }

  You should have a valid backup...

• Create the day before having abandoned datafile offline.

  Hello
  How to treat offline datafiles source dumped when creating pending.
  I have 4 bow TIE and a tablespace offline and related bigdatafile droped offline (because of corruption).

  SQL> select tablespace_name , status from dba_tablespaces order by status ;
  
  TABLESPACE_NAME                STATUS
  ------------------------------ ---------
  OLD_TBS                         OFFLINE
  
  SQL> select TS#,STATUS,ENABLED from v$datafile order by status;
  
         TS# STATUS  ENABLED
  ---------- ------- ----------
          16 OFFLINE DISABLED
  
  
  
  Its 4 node RAC 10.2.0.3 and ASM .
  
  select name,TS#,STATUS,ENABLED from v$datafile order by status
  +DBG1/dbname/datafile/bigfile.279.615031073
  
  Currently I'm doing something like that
  
  
  rman target /
  catalog backuppiece '/oarch/backup/bigfile.279.615031073';
  run{
  allocate channel ch1 type disk;
  SET NEWNAME FOR DATAFILE 16 TO '+DBG1';    
  restore datafile 16 from tag='TAG20100209T124507';
  SWITCH DATAFILE 16; 
  release channel ch1;
  }
  
  and then after duplicate is end
  
  SQL> alter database datafile 16 offline drop;
  SQL> recover automatic standby database;

  Please advice.
  Concerning
  GregG

  RMAN DUPLICATE provides that all files.

  You could take a manual backup and restore it on the standby server, then create a standby controlfile and restore it on the standby server. These could exclude the data deleted file.

  Hemant K Collette

• Restore the problem - how to get rid of the corrupt database?

  People,
  
  Some dumb developers managed to trash on our Oracle database by making a mistake in SQLDev.
  
  This database has been / is using the "autobackup" such as proposed in the installation wizard.
  
  For some reason, it seems that the restoration is not complete and robust.
  
  I get an error when mounting the database
  
  ORA-01248: 5 file has been created in the future of incomplete recovery
  ORA-01110: file of data 5: < path to file >
  
  not sure I understand what happened but I can't live without this specific database assuming that others are ok.
  
  An Advisor from how to get rid of this specific database and enjoy the rest of the server?
  
  The nest step will be to understand why, AutoSave does not what it is supposed to do...
  
  This is Oracle 11 g standard on Oracle Linux.

  Hello
  Before you start can you confirm that you have a backup somewhere to be able to do a new restore?
  (please do one now)
  If so, you can try to delete datafile 5 of the database.

  Startup mount
  change the drop offline database datafile 5;
  ALTER database open resetlogs;

  If you are not sure that the corruption/inconsistency in the schema sys (or controlfile) went please do an export of relevant patterns and re - create the database (as indicated by damorgan).
  Let us know your results.
  Kind regards
  Tycho