Oracle 12C RMAN Cross-Platform Transport of PDBs

Posted on by YongJing(敬勇)

为了将整个PDB传输到不同的平台，源平台与目标平台必须使用相同的字节序。compatible参数在源CDB数据库与目标CDB数据库中必须设置为12.1或更高版本。

下面的例子将Linux平台上的RAC CDB中的PDB数据库(jypdb与testpdb)传输到windows平台上的单实例CDB数据库中。 执行跨平台传输的操作如下:
1.检查源数据库与目标数据库的compatible参数是否设置为12.0.0或更高版本
源数据库

SQL> show parameter compatible

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
compatible                           string      12.2.0
noncdb_compatible                    boolean     FALSE

目标数据库

SQL> show parameter compatible

NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
compatible                           string      12.2.0
noncdb_compatible                    boolean     FALSE

2.检查源平台与目标平台的字节序
源平台

SQL> select d.platform_name,endian_format from v$transportable_platform tp,v$database d  where tp.platform_name=d.platform_name;

PLATFORM_NAME                                                                                         ENDIAN_FORMAT
----------------------------------------------------------------------------------------------------- --------------
Linux x86 64-bit                                                                                      Little

目标平台

SQL> select d.platform_name,endian_format from v$transportable_platform tp,v$database d  where tp.platform_name=d.platform_name;

PLATFORM_NAME                                                                       ENDIAN_FORMAT
--------------------------------------------------------------------------------    --------------
Microsoft Windows x86 64-bit                                                        Little

3.将要被传输的pdb(jypdb,testpdb)设置为只读状态

SQL> alter pluggable database all close immediate;

Pluggable database altered.

SQL> set long 200
SQL> set linesize 200
SQL>  select name,open_mode from v$pdbs;

NAME                                                                                                                             OPEN_MODE
-------------------------------------------------------------------------------------------------------------------------------- ----------
PDB$SEED                                                                                                                         READ ONLY
JYPDB                                                                                                                            MOUNTED
TESTPDB                                                                                                                          MOUNTED

4.备份要传输的PDB数据库，可以使用以下一种方法来跨平台传输PDB
4.1使用RMAN连接到CDB的root容器，并使用backup for transport … pluggable database或者backup to platform … pluggable database命令来为PDB创建跨平台备份。

4.2使用RMAN连接到PDB，并使用backup for transport或backup to platform命令来为PDB创建跨平台备份。

因为我这里要传输两个PDB所以选择第一种方法

RMAN> backup for transport unplug into '/ora_backup/tpdbs/metadata_jypdb.xml' pluggable database jypdb  format '/ora_backup/tpdbs/pdb_%U';

Starting backup at 11-FEB-18
using channel ORA_DISK_1
running UNPLUG on the specified pluggable database: JYPDB
UNPLUG file path : /ora_backup/tpdbs/metadata_jypdb.xml
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00014 name=+DATA/JY/5F9AC6865E87549FE053AB828A0ADE94/DATAFILE/users.278.962209649
input datafile file number=00011 name=+DATA/JY/5F9AC6865E87549FE053AB828A0ADE94/DATAFILE/sysaux.316.962209649
input datafile file number=00012 name=+DATA/JY/5F9AC6865E87549FE053AB828A0ADE94/DATAFILE/undotbs1.264.962209649
input datafile file number=00013 name=+DATA/JY/5F9AC6865E87549FE053AB828A0ADE94/DATAFILE/undo_2.268.962209649
input datafile file number=00010 name=+DATA/JY/5F9AC6865E87549FE053AB828A0ADE94/DATAFILE/system.271.962209649
input datafile file number=00015 name=+DATA/JY/5F9AC6865E87549FE053AB828A0ADE94/DATAFILE/test.275.962210609
input datafile file number=00022 name=+DATA/JY/5F9AC6865E87549FE053AB828A0ADE94/DATAFILE/tts.257.966380353
input datafile file number=00023 name=+DATA/JY/5F9AC6865E87549FE053AB828A0ADE94/DATAFILE/cs.294.966380783
channel ORA_DISK_1: starting piece 1 at 11-FEB-18
channel ORA_DISK_1: finished piece 1 at 11-FEB-18
piece handle=/ora_backup/tpdbs/pdb_8csqvqc5_1_1 tag=TAG20180211T173748 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:56
Finished backup at 11-FEB-18
starting full resync of recovery catalog
full resync complete

RMAN> backup for transport unplug into '/ora_backup/tpdbs/metadata_testpdb.xml' pluggable database testpdb  format '/ora_backup/tpdbs/pdb_%U';

Starting backup at 11-FEB-18
starting full resync of recovery catalog
full resync complete
using channel ORA_DISK_1
running UNPLUG on the specified pluggable database: TESTPDB
UNPLUG file path : /ora_backup/tpdbs/metadata_testpdb.xml
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00017 name=+DATA/JY/600D6F56DEB669CCE053AB828A0AAB7E/DATAFILE/sysaux.259.962469409
input datafile file number=00018 name=+DATA/JY/600D6F56DEB669CCE053AB828A0AAB7E/DATAFILE/undotbs1.265.962469409
input datafile file number=00016 name=+DATA/JY/600D6F56DEB669CCE053AB828A0AAB7E/DATAFILE/system.260.962469409
input datafile file number=00019 name=+DATA/JY/600D6F56DEB669CCE053AB828A0AAB7E/DATAFILE/undo_2.266.962469409
input datafile file number=00021 name=+DATA/JY/600D6F56DEB669CCE053AB828A0AAB7E/DATAFILE/test.269.962469409
input datafile file number=00020 name=+DATA/JY/600D6F56DEB669CCE053AB828A0AAB7E/DATAFILE/users.267.962469409
channel ORA_DISK_1: starting piece 1 at 11-FEB-18
channel ORA_DISK_1: finished piece 1 at 11-FEB-18
piece handle=/ora_backup/tpdbs/pdb_8dsqvqpj_1_1 tag=TAG20180211T174458 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:35
Finished backup at 11-FEB-18
starting full resync of recovery catalog
full resync complete


[oracle@jytest1 tpdbs]$ ls -lrt
total 1707488
-rw-r--r-- 1 oracle asmadmin      11413 Feb 11 11:38 metadata_jypdb.xml
-rw-r----- 1 oracle asmadmin 1038368768 Feb 11 11:39 pdb_8csqvqc5_1_1
-rw-r--r-- 1 oracle asmadmin       9569 Feb 11 11:45 metadata_testpdb.xml
-rw-r----- 1 oracle asmadmin  710066176 Feb 11 11:45 pdb_8dsqvqpj_1_1

5.将在源平台上使用rman backup命令生成的备份集与备份的控制文件传输到目标平台的D:\app\oracle\oradata\pdbs目录中

6.将PDB(jypdb,testpdb)还原到目标数据库

RMAN> restore from platform 'Linux x86 64-bit'   foreign pluggable database jypdb  to new from backupset 'D:\app\oracle\oradata\pdbs\pdb_8csqvqc5_1_1';

从位于 11-2月 -18 的 restore 开始
使用目标数据库控制文件替代恢复目录
分配的通道: ORA_DISK_1
通道 ORA_DISK_1: SID=1522 设备类型=DISK

通道 ORA_DISK_1: 正在开始还原数据文件备份集
通道 ORA_DISK_1: 正在指定从备份集还原的数据文件
通道 ORA_DISK_1: 正在还原备份片段中的所有外部文件
通道 ORA_DISK_1: 正在读取备份片段 D:\app\oracle\oradata\pdbs\pdb_8csqvqc5_1_1
通道 ORA_DISK_1: 将外部文件 14 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_USERS_F805GPMS_.DBF
通道 ORA_DISK_1: 将外部文件 11 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_SYSAUX_F805GPMS_.DBF
通道 ORA_DISK_1: 将外部文件 12 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_UNDOTBS1_F805GPMS_.DBF
通道 ORA_DISK_1: 将外部文件 13 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_UNDO_2_F805GPMS_.DBF
通道 ORA_DISK_1: 将外部文件 10 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_SYSTEM_F805GPN8_.DBF
通道 ORA_DISK_1: 将外部文件 15 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_TEST_F805GPN8_.DBF
通道 ORA_DISK_1: 将外部文件 22 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_TTS_F805GPN8_.DBF
通道 ORA_DISK_1: 将外部文件 23 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_CS_F805GPN8_.DBF
通道 ORA_DISK_1: 外部片段句柄 = D:\app\oracle\oradata\pdbs\pdb_8csqvqc5_1_1
通道 ORA_DISK_1: 已还原备份片段 1
通道 ORA_DISK_1: 还原完成, 用时: 00:00:36
在 11-2月 -18 完成了 restore


RMAN> restore from platform 'Linux x86 64-bit'   foreign pluggable database testpdb  to new from backupset 'D:\app\oracle\oradata\pdbs\pdb_8dsqvqpj_1_1';

从位于 11-2月 -18 的 restore 开始
使用目标数据库控制文件替代恢复目录
分配的通道: ORA_DISK_1
通道 ORA_DISK_1: SID=1522 设备类型=DISK

通道 ORA_DISK_1: 正在开始还原数据文件备份集
通道 ORA_DISK_1: 正在指定从备份集还原的数据文件
通道 ORA_DISK_1: 正在还原备份片段中的所有外部文件
通道 ORA_DISK_1: 正在读取备份片段 D:\app\oracle\oradata\pdbs\pdb_8dsqvqpj_1_1
通道 ORA_DISK_1: 将外部文件 17 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_SYSAUX_F806C6WT_.DBF
通道 ORA_DISK_1: 将外部文件 18 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_UNDOTBS1_F806C6WT_.DBF
通道 ORA_DISK_1: 将外部文件 16 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_SYSTEM_F806C6WT_.DBF
通道 ORA_DISK_1: 将外部文件 19 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_UNDO_2_F806C6XB_.DBF
通道 ORA_DISK_1: 将外部文件 21 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_TEST_F806C6XB_.DBF
通道 ORA_DISK_1: 将外部文件 20 还原到 D:\APP\ORACLE\ORADATA\JY\DATAFILE\O1_MF_USERS_F806C6XB_.DBF
通道 ORA_DISK_1: 外部片段句柄 = D:\app\oracle\oradata\pdbs\pdb_8dsqvqpj_1_1
通道 ORA_DISK_1: 已还原备份片段 1
通道 ORA_DISK_1: 还原完成, 用时: 00:00:26
在 11-2月 -18 完成了 restore

7.在目标主机上修改metadata_jypdb.xml与metadata_testpdb.xml文件将数据文件路径修改为还原后数据文件所在路径

8.将传输过来的PDB(jypdb,testpdb)插入CDB

SQL> create pluggable database jypdb using 'D:\app\oracle\oradata\pdbs\metadata_jypdb.xml' nocopy;

插接式数据库已创建。


SQL> create pluggable database testpdb using 'D:\app\oracle\oradata\pdbs\metadata_testpdb.xml' nocopy ;

插接式数据库已创建。

SQL> set long 200
SQL> set linesize 200
SQL> select name,open_mode from v$pdbs;

NAME                                                                                                                     OPEN_MODE
-------------------------------------------------------------------------------------------------------------------------------- ----------
PDB$SEED                                                                                                                 READ ONLY
JYPDB                                                                                                                    MOUNTED
TESTPDB                                                                                                                  MOUNTED

SQL> alter pluggable database all open;

插接式数据库已变更。

SQL> select name,open_mode from v$pdbs;

NAME                                                                                                                     OPEN_MODE
-------------------------------------------------------------------------------------------------------------------------------- ----------
PDB$SEED                                                                                                                 READ ONLY
JYPDB                                                                                                                    READ WRITE
TESTPDB                                                                                                                  READ WRITE

9.查询tts.t1与cs.t2表中的数据来验证跨平台传输PDB是否操作成功

SQL> select count(*) from tts.t1;

  COUNT(*)
----------
        90

SQL> select count(*) from cs.t2;

  COUNT(*)
----------
        92

到此，跨平台传输PDB就完成了。

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