IT 研究室 ( 前IT DBA's 資訊站): [轉載] Restore 9i backupset to 10g DB

主要是讓新版的資料庫軟體(10g) 讀取舊版本的RMAN Backupset(9i), 並進行還原動作。

Ref: http://nadvi.blogspot.tw/2010/08/is-it-possible-to-restore-oracle-92.html

Is it possible to restore Oracle 9.2 RMAN backup with 10.2.0.4 version?

Actually, this is possible because RMAN can read from backupset files written by older versions. The same is true for patchset differences, 10.2.0.2 backupset can be used for a restore with RMAN 10.2.0.4. We can also restore 32-bit database backup set with 64-bit version. Of course, keep in mind that simply restoring older database with newer version doesn't give you "instant" upgraded database -

All upgrade steps must be performed after a restore (yes, you'll have to read that manual, after all)

Refer to Metalink Note:369644.1 "Answers To FAQ For Restoring Or Duplicating Between Different Versions And Platforms".

I tested 9.2->10.2 scenario by restoring 9.2.0.8 backupset with 10.2.0.4 RMAN.

-- Connecting to Oracle 9.2.0.8 (noarchivelog) database

Recovery Manager: Release 9.2.0.8.0 - Production

connected to target database: ORA9 (DBID=422058228)

using target database controlfile instead of recovery catalog

D:\Oracle>rman target / nocatalog

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

-- Clean shutdown

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

RMAN> shutdown

database closed

database dismounted

Oracle instance shut down

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

Mount the database.for the sake of simplicity I left 9i db in noarchivelog mode

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

RMAN> startup mount

connected to target database (not started)

Oracle instance started

database mounted

Total System Global Area 705765992 bytes

Fixed Size 455272 bytes

Variable Size 301989888 bytes

Database Buffers 402653184 bytes

Redo Buffers 667648 bytes

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

-- Backup 9i database with 9i RMAN

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

RMAN> run {

2> allocate channel d1 type disk;

3> backup format 'D:\ORADATA\ORA9\BACKUP\%d_%t_%s_%p.bak' database;

4> backup current controlfile format 'D:\ORADATA\ORA9\BACKUP\ctrl_%d_%u_%s.bak';

5> release channel d1;

6> }

allocated channel: d1

channel d1: sid=11 devtype=DISK

Starting backup at 05.06.08

channel d1: starting full datafile backupset

channel d1: specifying datafile(s) in backupset

input datafile fno=00001 name=D:\ORADATA\ORA9\SYSTEM01.DBF

input datafile fno=00002 name=D:\ORADATA\ORA9\UNDOTBS01.DBF

input datafile fno=00007 name=D:\ORADATA\ORA9\XDB01.DBF

input datafile fno=00006 name=D:\ORADATA\ORA9\USERS01.DBF

input datafile fno=00004 name=D:\ORADATA\ORA9\INDX01.DBF

input datafile fno=00003 name=D:\ORADATA\ORA9\DRSYS01.DBF

input datafile fno=00005 name=D:\ORADATA\ORA9\TOOLS01.DBF

channel d1: starting piece 1 at 05.06.08

channel d1: finished piece 1 at 05.06.08

piece handle=D:\ORADATA\ORA9\BACKUP\ORA9_656636859_7_1.BAK comment=NONE

channel d1: backup set complete, elapsed time: 00:01:15

Finished backup at 05.06.08

Starting backup at 05.06.08

channel d1: starting full datafile backupset

channel d1: specifying datafile(s) in backupset

including current controlfile in backupset

channel d1: starting piece 1 at 05.06.08

channel d1: finished piece 1 at 05.06.08

piece handle=D:\ORADATA\ORA9\BACKUP\CTRL_ORA9_08JI6V06_8.BAK comment=NONE

channel d1: backup set complete, elapsed time: 00:00:01

Finished backup at 05.06.08

Starting Control File and SPFILE Autobackup at 05.06.08

piece handle=D:\ORACLE\ORA9\DATABASE\C-422058228-20080605-02 comment=NONE

Finished Control File and SPFILE Autobackup at 05.06.08

released channel: d1

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

-- Shutdown 9i instance

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

RMAN> shutdown

database dismounted

Oracle instance shut down

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

-- Prepare 10g instance with which you'll

-- restore 9i backup (this step is out of

-- the scope of this note!)

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

Prior to excecuting restore of 9i RMAN backup with 10g RMAN I took backup of 9i files and deleted them from original location. As shown below, there are no datafile in directory D:\ORADATA\ORA9 directory.

D:\ORADATA\ORA9>dir

Volume in drive D is SW

Volume Serial Number is 408C-7E40

Directory of D:\ORADATA\ORA9

05.06.2008 23:24

05.06.2008 23:08

BACKUP

05.06.2008 23:23

BACKUP9_ORIGINAL

0 File(s) 0 bytes

And the RMAN backup directory contains:

D:\ORADATA\ORA9\BACKUP>dir

Volume in drive D is SW

Volume Serial Number is 408C-7E40

Directory of D:\ORADATA\ORA9\BACKUP

05.06.2008 23:08

05.06.2008 23:08 1.638.400 CTRL_ORA9_08JI6V06_8.BAK

05.06.2008 23:08 517.414.912 ORA9_656636859_7_1.BAK

2 File(s) 519.053.312 bytes

2 Dir(s) 4.094.455.808 bytes free

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

Restore 9i backupset with 10g (Note: I used 9i pfile to start 10g instance that's what caused some warnings about obsolete parameters.)

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

D:\Oracle>rman target / nocatalog

Recovery Manager: Release 10.2.0.4.0 - Production on Cet Jun 5 23:29:08 2008

connected to target database (not started)

RMAN> startup nomount

Oracle instance started

Total System Global Area 683671552 bytes

Fixed Size 1298592 bytes

Variable Size 276828000 bytes

Database Buffers 402653184 bytes

Redo Buffers 2891776 bytes

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

-- Restore control file...

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

RMAN> run {

2> allocate channel d1 type disk;

3> restore controlfile from 'D:\ORADATA\ORA9\BACKUP\CTRL_ORA9_08JI6V06_8.BAK';

4> release channel d1;

5> }

allocated channel: d1

channel d1: sid=157 devtype=DISK

Starting restore at 05.06.08

channel d1: restoring control file

channel d1: restore complete, elapsed time: 00:00:03

output filename=D:\ORADATA\ORA9\CONTROL01.CTL

output filename=D:\ORADATA\ORA9\CONTROL02.CTL

output filename=D:\ORADATA\ORA9\CONTROL03.CTL

Finished restore at 05.06.08

released channel: d1

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

-- Mount database...

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

RMAN> alter database mount;

database mounted

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

-- Restore database...

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

RMAN> run {

2> allocate channel d1 type disk;

3> restore database;

4> }

allocated channel: d1

channel d1: sid=157 devtype=DISK

Starting restore at 05.06.08

channel d1: starting datafile backupset restore

channel d1: specifying datafile(s) to restore from backup set

restoring datafile 00001 to D:\ORADATA\ORA9\SYSTEM01.DBF

restoring datafile 00002 to D:\ORADATA\ORA9\UNDOTBS01.DBF

restoring datafile 00003 to D:\ORADATA\ORA9\DRSYS01.DBF

restoring datafile 00004 to D:\ORADATA\ORA9\INDX01.DBF

restoring datafile 00005 to D:\ORADATA\ORA9\TOOLS01.DBF

restoring datafile 00006 to D:\ORADATA\ORA9\USERS01.DBF

restoring datafile 00007 to D:\ORADATA\ORA9\XDB01.DBF

channel d1: reading from backup piece D:\ORADATA\ORA9\BACKUP\ORA9_656636859_7_1.BAK

channel d1: restored backup piece 1

piece handle=D:\ORADATA\ORA9\BACKUP\ORA9_656636859_7_1.BAK tag=TAG20080605T230738

channel d1: restore complete, elapsed time: 00:01:25

Finished restore at 05.06.08

released channel: d1

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

-- Open database with resetlogs

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

RMAN> alter database open resetlogs;