本文檔分為兩部分：

1.單個pdb備份還原

2.只cdb備份還原

1.rman只備份pdb

SQL> show pdbs

CON_ID CON_NAME?????????????????????? OPEN MODE? RESTRICTED

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

2 PDB$SEED?????????????????????? READ ONLY? NO

3 MPDB01???????????????????????? READ WRITE NO

5 MPDB02???????????????????????? READ WRITE NO

CDB和PDB中建立如下測試表：

SQL> create table t_for_back (a int);

Table created.

SQL> insert into t_for_back select 1 from dual;

1 row created.

SQL> commit;

Commit complete.

備份單個pdb

RMAN> BACKUP pluggable database mpdb02 FORMAT '/backup/oraback/bk_%s_%p_%t';

Starting backup at 19-JUL-19

using channel ORA_DISK_1

channel ORA_DISK_1: starting full datafile backup set

channel ORA_DISK_1: specifying datafile(s) in backup set

input datafile file number=00016 name=/u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_undotbs1_gm2p199r_.dbf

input datafile file number=00014 name=/u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_system_gm2p199h_.dbf

input datafile file number=00015 name=/u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_sysaux_gm2p199q_.dbf

input datafile file number=00017 name=/u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_users_gm2p199s_.dbf

channel ORA_DISK_1: starting piece 1 at 19-JUL-19

channel ORA_DISK_1: finished piece 1 at 19-JUL-19

piece handle=/backup/oraback/bk_100_1_1014040596 tag=TAG20190719T135636 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:15

Finished backup at 19-JUL-19

Starting Control File and SPFILE Autobackup at 19-JUL-19

piece handle=/u02/app/oracle/products/12.2.0.1/db_1/dbs/c-3951895183-20190719-01 comment=NONE

Finished Control File and SPFILE Autobackup at 19-JUL-19

檢查備份情況：

RMAN>? list backup of pluggable database mpdb02;

List of Backup Sets

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

BS Key? Type LV Size?????? Device Type Elapsed Time Completion Time

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

94????? Full??? 1.17G????? DISK??????? 00:00:08???? 19-JUL-19

BP Key: 94?? Status: AVAILABLE? Compressed: NO? Tag: TAG20190719T135636

Piece Name: /backup/oraback/bk_100_1_1014040596

List of Datafiles in backup set 94

Container ID: 5, PDB Name: MPDB02

File LV Type Ckp SCN??? Ckp Time? Abs Fuz SCN Sparse Name

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

14????? Full 2902650??? 19-JUL-19????????????? NO??? /u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_system_gm2p199h_.dbf

15????? Full 2902650??? 19-JUL-19????????????? NO??? /u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_sysaux_gm2p199q_.dbf

16????? Full 2902650??? 19-JUL-19????????????? NO??? /u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_undotbs1_gm2p199r_.dbf

17????? Full 2902650??? 19-JUL-19????????????? NO??? /u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_users_gm2p199s_.dbf

模擬數據文件丟失

[oracle@oradb-2062 datafile]$ mv o1_mf_system_gm2p199h_.dbf o1_mf_system_gm2p199h_.dbf.bak

cdb和mpdb01中：

SQL> create table t19071901 (a int);

Table created.

SQL> insert into t19071901 select 1 from dual;

1 row created.

SQL> commit;

Commit complete.

mpdb02中

SQL> create table t19071901 (a int) tablespace users;

Table created.

SQL> insert into t19071901 select 1 from dual;

1 row created.

SQL> commit;

Commit complete.

SQL> alter system checkpoint;

System altered.

SQL> sho con_name

ERROR:

ORA-03135: connection lost contact

Process ID: 94384

Session ID: 33 Serial number: 19671

SP2-1545: This feature requires Database availability.

現在RMAN恢復：

RMAN> restore pluggable database mpdb02;

Starting restore at 19-JUL-19

using channel ORA_DISK_1

channel ORA_DISK_1: starting datafile backup set restore

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

channel ORA_DISK_1: restoring datafile 00014 to /u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_system_gm2p199h_.dbf

channel ORA_DISK_1: restoring datafile 00015 to /u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_sysaux_gm2p199q_.dbf

channel ORA_DISK_1: restoring datafile 00016 to /u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_undotbs1_gm2p199r_.dbf

channel ORA_DISK_1: restoring datafile 00017 to /u02/app/oracle/oradata/MCDB/8E032EED10D56F47E05302CEA8C0D24C/datafile/o1_mf_users_gm2p199s_.dbf

channel ORA_DISK_1: reading from backup piece /backup/oraback/bk_100_1_1014040596

channel ORA_DISK_1: piece handle=/backup/oraback/bk_100_1_1014040596 tag=TAG20190719T135636

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:16

Finished restore at 19-JUL-19

RMAN> recover pluggable database mpdb02;

Starting recover at 19-JUL-19

using channel ORA_DISK_1

starting media recovery

media recovery complete, elapsed time: 00:00:02

Finished recover at 19-JUL-19

數據檢查

SQL> alter session set container=mpdb02;

Session altered.

SQL> select * from t_for_back

2? ;

A

----------

1

SQL> select * from t19071901;

A

----------

1

###########################################################################

下面用rman只備份cdb

RMAN> backup database root FORMAT '/backup/oraback/bk_%s_%p_%t';

Starting backup at 19-JUL-19

using channel ORA_DISK_1

channel ORA_DISK_1: starting full datafile backup set

channel ORA_DISK_1: specifying datafile(s) in backup set

input datafile file number=00001 name=/u02/app/oracle/oradata/MCDB/datafile/o1_mf_system_gkmjqb8y_.dbf

input datafile file number=00003 name=/u02/app/oracle/oradata/MCDB/datafile/o1_mf_sysaux_gkmjt28w_.dbf

input datafile file number=00004 name=/u02/app/oracle/oradata/MCDB/datafile/o1_mf_undotbs1_gkmjvjz7_.dbf

input datafile file number=00007 name=/u02/app/oracle/oradata/MCDB/datafile/o1_mf_users_gkmjvl3k_.dbf

channel ORA_DISK_1: starting piece 1 at 19-JUL-19

channel ORA_DISK_1: finished piece 1 at 19-JUL-19

piece handle=/backup/oraback/bk_102_1_1014042002 tag=TAG20190719T142002 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:16

Finished backup at 19-JUL-19

Starting Control File and SPFILE Autobackup at 19-JUL-19

piece handle=/u02/app/oracle/products/12.2.0.1/db_1/dbs/c-3951895183-20190719-02 comment=NONE

Finished Control File and SPFILE Autobackup at 19-JUL-19

SQL> shutdown abort

ORACLE instance shut down.

SQL>

SQL>

SQL>

SQL> startup

ORACLE instance started.

Total System Global Area 1191182336 bytes

Fixed Size????????????????? 8792104 bytes

Variable Size???????????? 436209624 bytes

Database Buffers????????? 738197504 bytes

Redo Buffers??????????????? 7983104 bytes

Database mounted.

ORA-01157: cannot identify/lock data file 1 - see DBWR trace file

ORA-01110: data file 1:

'/u02/app/oracle/oradata/MCDB/datafile/o1_mf_system_gkmjqb8y_.dbf'

SQL> select status from v$instance;

STATUS

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

MOUNTED

RMAN> restore database root;

Starting restore at 19-JUL-19

using target database control file instead of recovery catalog

allocated channel: ORA_DISK_1

channel ORA_DISK_1: SID=42 device type=DISK

channel ORA_DISK_1: starting datafile backup set restore

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

channel ORA_DISK_1: restoring datafile 00001 to /u02/app/oracle/oradata/MCDB/datafile/o1_mf_system_gkmjqb8y_.dbf

channel ORA_DISK_1: restoring datafile 00003 to /u02/app/oracle/oradata/MCDB/datafile/o1_mf_sysaux_gkmjt28w_.dbf

channel ORA_DISK_1: restoring datafile 00004 to /u02/app/oracle/oradata/MCDB/datafile/o1_mf_undotbs1_gkmjvjz7_.dbf

channel ORA_DISK_1: restoring datafile 00007 to /u02/app/oracle/oradata/MCDB/datafile/o1_mf_users_gkmjvl3k_.dbf

channel ORA_DISK_1: reading from backup piece /backup/oraback/bk_102_1_1014042002

channel ORA_DISK_1: piece handle=/backup/oraback/bk_102_1_1014042002 tag=TAG20190719T142002

channel ORA_DISK_1: restored backup piece 1

channel ORA_DISK_1: restore complete, elapsed time: 00:00:15

Finished restore at 19-JUL-19

RMAN> recover database root;

Starting recover at 19-JUL-19

using channel ORA_DISK_1

starting media recovery

media recovery complete, elapsed time: 00:00:01

Finished recover at 19-JUL-19

RMAN> alter database open;

Statement processed

BACKUP DATABASE;

會備份所有的CDB和PDB

BACKUP DATABASE root；

只備份CDB

BACKUP DATABASE pdb01,pdb02;

備份指定的PDB

來自 “ ITPUB博客 ” ，鏈接：http://blog.itpub.net/31480688/viewspace-2651129/，如需轉載，請注明出處，否則將追究法律責任。

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