El blog de Nelson Javier Martinez Acosta: SIN ARCHIVO DE CONTROL

Una opción es recuperar el archivo de control desde el archivo de log de RMAN. Cada copia de seguridad que se ejecuta genera un archivo de log el cual contiene los nombres y números de cada archivo de datos. Extrayendo esta información puede crearse un archivo de control nuevo sobre el cual se puede realizar catalogación de piezas y recuperación de la base de datos hasta un punto en el tiempo.

El archivo de log muestra en qué pieza se encuentra cada uno de los archivos de datos a restaurar como lo muestra el texto en colores

...

RMAN> 2> 3> 4> 5> 6> 7>

starting full resync of recovery catalog

full resync complete

allocated channel: ch1

channel ch1: SID=409 device type=DISK

allocated channel: ch2

channel ch2: SID=600 device type=DISK

Starting backup at 08/05/2014 21:10:14

channel ch1: starting compressed full datafile backup set

channel ch1: specifying datafile(s) in backup set

input datafile file number=00014 name=+DG_DATA/fonpetp/datafile/ts_fonpet_movim.dbf

input datafile file number=00012 name=+DG_DATA/fonpetp/datafile/ts_fonpet_movim_02.dbf

input datafile file number=00002 name=+DG_DATA/fonpetp/datafile/sysaux01.dbf

input datafile file number=00006 name=+DG_DATA/fonpetp/datafile/indic_fonpet_param.dbf

input datafile file number=00009 name=+DG_DATA/fonpetp/datafile/ts_fonpet_param.dbf

input datafile file number=00001 name=+DG_DATA/fonpetp/datafile/system01.dbf

input datafile file number=00004 name=+DG_DATA/fonpetp/datafile/users01.dbf

channel ch1: starting piece 1 at 08/05/2014 21:10:16

channel ch2: starting compressed full datafile backup set

channel ch2: specifying datafile(s) in backup set

input datafile file number=00010 name=+DG_DATA/fonpetp/datafile/ts_fonpet_movim_01.dbf

input datafile file number=00005 name=+DG_DATA/fonpetp/datafile/indic_fonpet_movim_01.dbf

input datafile file number=00013 name=+DG_DATA/fonpetp/datafile/ts_fonpet_rep.dbf

input datafile file number=00015 name=+DG_DATA/fonpetp/datafile/ts_fonpet_movim_2.dbf

input datafile file number=00011 name=+DG_DATA/fonpetp/datafile/indic_fonpet_movim_02.dbf

input datafile file number=00007 name=+DG_DATA/fonpetp/datafile/indic_fonpet_movim.dbf

input datafile file number=00003 name=+DG_DATA/fonpetp/datafile/undotbs101.dbf

input datafile file number=00008 name=+DG_DATA/fonpetp/datafile/indic_fonpet_movim_reorg0.dbf

channel ch2: starting piece 1 at 08/05/2014 21:10:18

channel ch2: finished piece 1 at 08/05/2014 21:23:13

piece handle=/u03/backups/rman/fonpetp/full_FONPETP_v5p7q2ho_1_1_20140508.bak tag=TAG20140508T211014 comment=NONE

channel ch2: backup set complete, elapsed time: 00:12:55

channel ch1: finished piece 1 at 08/05/2014 21:31:23

piece handle=/u03/backups/rman/fonpetp/full_FONPETP_v4p7q2hn_1_1_20140508.bak tag=TAG20140508T211014 comment=NONE

channel ch1: backup set complete, elapsed time: 00:21:07

Finished backup at 08/05/2014 21:31:23

...

Se prepara el bloque de comandos PLSQL que restaura los archivos usando el paquete DBMS_BACKUP_RESTORE y la información obtenida del archivo de log. Aunque se puede hacer para todos los archivos en un solo bloque, se recomienda hacerlo por cada archivo. Nótese que en el archivo de log aparece el nombre de la pieza en donde se encuentra cada archivo de datos para construir el bloque.

[oracle@bdprod logs]$ sqlplus dba_fonpet as sysdba

Password:

Connected.

SYS@fonpetp> startup nomount;

ORACLE instance started.

Total System Global Area 1.0422E+10 bytes

Fixed Size 2237448 bytes

Variable Size 5670702072 bytes

Database Buffers 4731174912 bytes

Redo Buffers 18120704 bytes

SQL> DECLARE

v_dev varchar2(50);

v_done boolean;

type t_fileTable is table of varchar2(255) index by binary_integer;

v_fileTable t_fileTable;

v_maxPieces number:=2;

BEGIN

v_fileTable(1):='/u02/backup/rman/full_FONPETP_v5p7q2ho_1_1_20140508.bak';

v_maxPieces:=2;

v_dev:=sys.dbms_backup_restore.deviceAllocate(type=>null, ident=>'d1');

sys.dbms_backup_restore.restoreSetDatafile;

--dbms_backup_restore.RestoreDatafileTo(dfnumber => 1);

dbms_backup_restore.RestoreDatafileTo( 1,'+DG_DATA/fonpetd/datafile/system01.dbf',0,'SYSTEM');

FOR i IN 1..v_maxPieces LOOP

sys.dbms_backup_restore.restoreBackupPiece(done=>v_done, handle=>v_fileTable(i), params=>null);

IF v_done THEN

GOTO all_done;

END IF;

END LOOP;

sys.dbms_backup_restore.deviceDeallocate;

END;

Puede realizarse seguimiento de la restauración de cada archivo de datos usando la vista v$session_longops;

SYS@fonpetd> select opname, time_remaining/60 mins

2 from v$session_longops

3 where time_remaining > 0;

OPNAME MINS

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

RMAN: full datafile restore 4.31666667

En caso que sea necesario crear los directorios faltantes se procede desde asmcmd

[oracle@bddesarrollo rman]$ asmcmd mkdir +DG_FRA/fonpetp/

[oracle@bddesarrollo rman]$ asmcmd mkdir +DG_FRA/fonpetp/onlinelog/

Si la restauración se realiza con un nuevo nombre será necesario cambiar el parámetro db_name y las rutas respectivas, validar su existencia igualmente. En caso contrario que se desee conservar en nombre de la base de datos este paso no es necesario este paso.

SYS@fonpett> create pfile='/tmp/init.ora' from spfile='+DG_DATA/fonpett/spfilefonpett.ora';

File created.

SYS@fonpett> startup force nomount;

ORACLE instance started.

Total System Global Area 3206836224 bytes

Fixed Size 2232640 bytes

Variable Size 1493176000 bytes

Database Buffers 1694498816 bytes

Redo Buffers 16928768 bytes

SYS@fonpett> show parameter db_name

NAME TYPE VALUE

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

db_name string FONPETP

SYS@fonpett> exit

Disconnected from Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

[oracle@bdpruebas ~]$ vi /tmp/init.ora

"/tmp/init.ora" 28L, 976C

*.audit_file_dest='/u01/app/oracle/admin/fonpett/adump'

*.audit_trail='db'

*.compatible='11.2.0.0.0'

*.control_files='+DG_DATA/fonpett/control01.ctl','+DG_FRA/fonpett/control02.ctl'

*.db_block_size=8192

*.db_create_file_dest='+DG_DATA'

*.db_domain=''

*.db_name='FONPETT'

*.db_unique_name='FONPETT'

*.diagnostic_dest='/u01/app/oracle'

*.dispatchers='(PROTOCOL=TCP) (SERVICE=fonpettXDB)'

*.open_cursors=300

*.pga_aggregate_target=1073741824

*.processes=400

*.remote_login_passwordfile='EXCLUSIVE'

*.sessions=445

*.sga_target=3221225472

*.standby_file_management='MANUAL'

*.undo_tablespace='UNDOTBS1'

17,1All892019879 65432

:q!

[oracle@bdpruebas ~]$ . oraenv

ORACLE_SID = [fonpett] ? fonpett

The Oracle base remains unchanged with value /u01/app/oracle

[oracle@bdpruebas ~]$ sqlplus dba_fonpet as sysdba

SQL*Plus: Release 11.2.0.3.0 Production on Mon Jun 16 14:35:33 2014

Enter password: *********

Connected to:

Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

With the Automatic Storage Management option

SYS@fonpett> startup force nomount pfile='/tmp/init.ora';

ORACLE instance started.

Total System Global Area 3206836224 bytes

Fixed Size 2232640 bytes

Variable Size 1493176000 bytes

Database Buffers 1694498816 bytes

Redo Buffers 16928768 bytes

SYS@fonpett> show parameter db_name

NAME TYPE VALUE

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

db_name string FONPETT

SYS@fonpett> create spfile from pfile='/tmp/init.ora';

File created.

SYS@fonpett> startup force nomount;

ORACLE instance started.

Total System Global Area 3206836224 bytes

Fixed Size 2232640 bytes

Variable Size 1493176000 bytes

Database Buffers 1694498816 bytes

Redo Buffers 16928768 bytes

SYS@fonpett> show parameter db_name

NAME TYPE VALUE

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

db_name string FONPETP

SYS@fonpett> exit

Disconnected from Oracle Database 11g Release 11.2.0.3.0 - 64bit Production

Se procede con la preparación y ejecución del comando para crear el archivo de control desde SQL Plus

[oracle@bdprod restaurar]$ sqlplus dba_fonpet as sysdba

Connected.

SYS@fonpetp> startup force nomount;

ORACLE instance started.

Total System Global Area 1.0422E+10 bytes

Fixed Size 2237448 bytes

Variable Size 5670702072 bytes

Database Buffers 4731174912 bytes

Redo Buffers 18120704 bytes

SYSfonpetp> CREATE CONTROLFILE SET DATABASE "FONPETT" RESETLOGS ARCHIVELOG

MAXLOGFILES 32 MAXLOGMEMBERS 3 MAXDATAFILES 100 MAXINSTANCES 8 MAXLOGHISTORY 2920

LOGFILE

GROUP 1 ('+DG_DATA/fonpett/onlinelog/redo01a.rdo','+DG_FRA/fonpett/onlinelog/redo01b.rdo') SIZE 50M BLOCKSIZE 512,

GROUP 2 ('+DG_DATA/fonpett/onlinelog/redo02a.rdo','+DG_FRA/fonpett/onlinelog/redo02b.rdo') SIZE 50M BLOCKSIZE 512,

GROUP 3 ('+DG_DATA/fonpett/onlinelog/redo03a.rdo','+DG_FRA/fonpett/onlinelog/redo03b.rdo') SIZE 50M BLOCKSIZE 512,

GROUP 4 ('+DG_DATA/fonpett/onlinelog/redo04a.rdo','+DG_FRA/fonpett/onlinelog/redo04b.rdo') SIZE 50M BLOCKSIZE 512,

GROUP 5 ('+DG_DATA/fonpett/onlinelog/redo05a.rdo','+DG_FRA/fonpett/onlinelog/redo05b.rdo') SIZE 50M BLOCKSIZE 512,

GROUP 6 ('+DG_DATA/fonpett/onlinelog/redo06a.rdo','+DG_FRA/fonpett/onlinelog/redo06b.rdo') SIZE 50M BLOCKSIZE 512,

GROUP 7 ('+DG_DATA/fonpett/onlinelog/redo07a.rdo','+DG_FRA/fonpett/onlinelog/redo07b.rdo') SIZE 50M BLOCKSIZE 512,

GROUP 8 ('+DG_DATA/fonpett/onlinelog/redo08a.rdo','+DG_FRA/fonpett/onlinelog/redo08b.rdo') SIZE 50M BLOCKSIZE 512,

GROUP 9 '+DG_DATA/fonpett/onlinelog/redolog1.stb' SIZE 50M BLOCKSIZE 512,

GROUP 10 '+DG_DATA/fonpett/onlinelog/redolog2.stb' SIZE 50M BLOCKSIZE 512,

GROUP 11 '+DG_DATA/fonpett/onlinelog/redolog3.stb' SIZE 50M BLOCKSIZE 512,

GROUP 13 '+DG_DATA/fonpett/onlinelog/redolog4.stb' SIZE 50M BLOCKSIZE 512,

GROUP 14 '+DG_DATA/fonpett/onlinelog/redolog5.stb' SIZE 50M BLOCKSIZE 512,

GROUP 15 '+DG_DATA/fonpett/onlinelog/redolog6.stb' SIZE 50M BLOCKSIZE 512,

GROUP 16 '+DG_DATA/fonpett/onlinelog/redolog7.stb' SIZE 50M BLOCKSIZE 512,

GROUP 17 '+DG_DATA/fonpett/onlinelog/redolog8.stb' SIZE 50M BLOCKSIZE 512,

GROUP 18 '+DG_DATA/fonpett/onlinelog/redolog9.stb' SIZE 50M BLOCKSIZE 512

DATAFILE

'+DG_DATA/fonpett/datafile/system01.dbf',

'+DG_DATA/fonpett/datafile/systaux01.dbf',

'+DG_DATA/fonpett/datafile/undotbs101.dbf',

'+DG_DATA/fonpett/datafile/users01.dbf',

'+DG_DATA/fonpett/datafile/indic_fonpet_movim_01.dbf',

'+DG_DATA/fonpett/datafile/indic_fonpet_param.dbf',

'+DG_DATA/fonpett/datafile/indic_fonpet_movim.dbf',

'+DG_DATA/fonpett/datafile/indic_fonpet_movim_reorg0.dbf',

'+DG_DATA/fonpett/datafile/ts_fonpet_param.dbf',

'+DG_DATA/fonpett/datafile/ts_fonpet_movim_01.dbf',

'+DG_DATA/fonpett/datafile/indic_fonpet_movim_02.dbf',

'+DG_DATA/fonpett/datafile/ts_fonpet_movim_02.dbf',

'+DG_DATA/fonpett/datafile/ts_fonpet_rep.dbf',

'+DG_DATA/fonpett/datafile/ts_fonpet_movim.dbf',

'+DG_DATA/fonpett/datafile/ts_fonpet_movim_2.dbf'

CHARACTER SET WE8ISO8859P1

;

Control file created.

Validar que todos los archivos de daros se encuentren matriculados en el archivo de control con tamaño y en estado ONLINE o RECOVER

SYS@fonpett> set lines 2000 pages 1000

SYS@fonpett> col name format a79

SYS@fonpett> select name, bytes, status from v$datafile;

NAME BYTES STATUS

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

+DG_DATA/fonpett/datafile/system01.dbf 1126170624 SYSTEM

+DG_DATA/fonpett/datafile/systaux01.dbf 1986002944 RECOVER

+DG_DATA/fonpett/datafile/undotbs101.dbf 3191865344 RECOVER

+DG_DATA/fonpett/datafile/users01.dbf 187432960 RECOVER

+DG_DATA/fonpett/datafile/indic_fonpet_movim_01.dbf 5309988864 RECOVER

+DG_DATA/fonpett/datafile/indic_fonpet_param.dbf 594214912 RECOVER

+DG_DATA/fonpett/datafile/indic_fonpet_movim.dbf 3463774208 RECOVER

+DG_DATA/fonpett/datafile/indic_fonpet_movim_reorg0.dbf 2621440000 RECOVER

+DG_DATA/fonpett/datafile/ts_fonpet_param.dbf 104857600 RECOVER

+DG_DATA/fonpett/datafile/ts_fonpet_movim_01.dbf 8678146048 RECOVER

+DG_DATA/fonpett/datafile/indic_fonpet_movim_02.dbf 5146411008 RECOVER

+DG_DATA/fonpett/datafile/ts_fonpet_movim_02.dbf 3145728000 RECOVER

+DG_DATA/fonpett/datafile/ts_fonpet_rep.dbf 5242880000 RECOVER

+DG_DATA/fonpett/datafile/ts_fonpet_movim.dbf 3.4318E+10 RECOVER

+DG_DATA/fonpett/datafile/ts_fonpet_movim_2.dbf 5242880000 RECOVER

15 rows selected.

Se procede con la catalogación de piezas para recover.

[oracle@bddesarrollo dbs]$ rman target /

Recovery Manager: Release 11.2.0.3.0 - Production on Thu Jun 12 14:33:59 2014

connected to target database: FONPETD (DBID=2150325182, not open)

RMAN> catalog start with '/u02/backup/rman';

using target database control file instead of recovery catalog

searching for all files that match the pattern /u02/backup/rman

List of Files Unknown to the Database

=====================================

File Name: /u02/backup/rman/full_FONPETP_v5p7q2ho_1_1_20140508.bak

File Name: /u02/backup/rman/full_FONPETP_v4p7q2hn_1_1_20140508.bak

File Name: /u02/backup/rman/archivelog_FONPETP_vcp7q44p_1_1_20140508.bak

Do you really want to catalog the above files (enter YES or NO)? YES

cataloging files...

cataloging done

List of Cataloged Files

=======================

File Name: /u02/backup/rman/full_FONPETP_v5p7q2ho_1_1_20140508.bak

File Name: /u02/backup/rman/full_FONPETP_v4p7q2hn_1_1_20140508.bak

File Name: /u02/backup/rman/archivelog_FONPETP_vcp7q44p_1_1_20140508.bak

Se define el punto de restauración, en este caso usando el último archivelog y se restauran los archive logs respectivos. Nótese que en la columna “Next SCN” aparece el número de SCN hasta el cual puede restaurarse la base de datos usando archive logs que equivale al punto de restauración de las 21:31:27

RMAN> list backup of archivelog all;

List of Backup Sets

===================

BS Key Size Device Type Elapsed Time Completion Time

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

2 262.36M DISK 00:00:00 08/05/2014 21:37:29

BP Key: 2 Status: AVAILABLE Compressed: NO Tag: TAG20140508T213135

Piece Name: /u02/backup/rman/archivelog_FONPETP_vcp7q44p_1_1_20140508.bak

List of Archived Logs in backup set 2

Thrd Seq Low SCN Low Time Next SCN Next Time

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

1 3580 68215578 08/05/2014 11:03:22 68218390 08/05/2014 11:17:05

1 3581 68218390 08/05/2014 11:17:05 68219047 08/05/2014 11:17:11

1 3582 68219047 08/05/2014 11:17:11 68220601 08/05/2014 11:25:59

1 3583 68220601 08/05/2014 11:25:59 68221736 08/05/2014 11:32:42

1 3584 68221736 08/05/2014 11:32:42 68225001 08/05/2014 11:56:51

1 3585 68225001 08/05/2014 11:56:51 68228020 08/05/2014 12:17:07

1 3586 68228020 08/05/2014 12:17:07 68233698 08/05/2014 12:59:44

1 3587 68233698 08/05/2014 12:59:44 68234397 08/05/2014 12:59:50

1 3588 68234397 08/05/2014 12:59:50 68235608 08/05/2014 13:05:11

1 3589 68235608 08/05/2014 13:05:11 68245134 08/05/2014 14:26:51

1 3590 68245134 08/05/2014 14:26:51 68255946 08/05/2014 16:01:05

1 3591 68255946 08/05/2014 16:01:05 68257325 08/05/2014 16:08:14

1 3592 68257325 08/05/2014 16:08:14 68260491 08/05/2014 16:31:42

1 3593 68260491 08/05/2014 16:31:42 68264133 08/05/2014 17:00:07

1 3594 68264133 08/05/2014 17:00:07 68277112 08/05/2014 18:44:19

1 3595 68277112 08/05/2014 18:44:19 68287826 08/05/2014 20:17:55

1 3596 68287826 08/05/2014 20:17:55 68295909 08/05/2014 21:31:27

RMAN> restore archivelog all;

Starting restore at 12-JUN-14

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=200 device type=DISK

channel ORA_DISK_1: starting archived log restore to default destination