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12c MultiTenant Posts — 4 : Relocate Individual PDB using RMAN

Given the current location of a PDB :

SQL> alter session set container=NEWPDB;

Session altered.

SQL> select file_name from dba_data_files;

FILE_NAME
--------------------------------------------------------------------------------
/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_system_dkj7
f8go_.dbf

/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_sysaux_dkj7
f8hf_.dbf

/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_undotbs1_dk
j7f8hg_.dbf

/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_mydata_dmbc
p0wz_.dbf

FILE_NAME
--------------------------------------------------------------------------------


SQL>

I can use RMAN to relocate it. First I take an Image Copy Backup to the new location

RMAN> backup as copy pluggable database newpdb format '/u03/oradata/NEWPDB/%U';

Starting backup at 20-JUN-17
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=18 device type=DISK
channel ORA_DISK_1: starting datafile copy
input datafile file number=00017 name=/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_sysaux_dkj7f8hf_.dbf
output file name=/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-SYSAUX_FNO-17_09s7a8d2 tag=TAG20170620T231338 RECID=4 STAMP=947200428
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:16
channel ORA_DISK_1: starting datafile copy
input datafile file number=00016 name=/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_system_dkj7f8go_.dbf
output file name=/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-SYSTEM_FNO-16_0as7a8di tag=TAG20170620T231338 RECID=5 STAMP=947200441
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:15
channel ORA_DISK_1: starting datafile copy
input datafile file number=00018 name=/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_undotbs1_dkj7f8hg_.dbf
output file name=/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-UNDOTBS1_FNO-18_0bs7a8e1 tag=TAG20170620T231338 RECID=6 STAMP=947200451
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
channel ORA_DISK_1: starting datafile copy
input datafile file number=00019 name=/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_mydata_dmbcp0wz_.dbf
output file name=/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-MYDATA_FNO-19_0cs7a8e4 tag=TAG20170620T231338 RECID=7 STAMP=947200454
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
Finished backup at 20-JUN-17

Starting Control File and SPFILE Autobackup at 20-JUN-17
piece handle=/u01/app/oracle/fast_recovery_area/orcl12c/ORCL12C/autobackup/2017_06_20/o1_mf_s_947200455_dnms48pp_.bkp comment=NONE
Finished Control File and SPFILE Autobackup at 20-JUN-17

RMAN>

Then I switch the database file pointers to the new location.

RMAN> alter pluggable database newpdb close;

Statement processed

RMAN> switch pluggable database newpdb to copy;

datafile 16 switched to datafile copy "/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-SYSTEM_FNO-16_0as7a8di"
datafile 17 switched to datafile copy "/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-SYSAUX_FNO-17_09s7a8d2"
datafile 18 switched to datafile copy "/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-UNDOTBS1_FNO-18_0bs7a8e1"
datafile 19 switched to datafile copy "/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-MYDATA_FNO-19_0cs7a8e4"

RMAN> recover pluggable database newpdb;

Starting recover at 20-JUN-17
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=42 device type=DISK

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

Finished recover at 20-JUN-17

RMAN> alter pluggable database newpdb open;

Statement processed

RMAN>

I can now verify the new location for the database files.

 
SQL> alter session set container=NEWPDB;

Session altered.

SQL> select file_name from dba_data_files;

FILE_NAME
--------------------------------------------------------------------------------
/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-SYSTEM_FNO-16_0as7a8di
/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-SYSAUX_FNO-17_09s7a8d2
/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-UNDOTBS1_FNO-18_0bs7a8e1
/u03/oradata/NEWPDB/data_D-ORCL12C_I-768045447_TS-MYDATA_FNO-19_0cs7a8e4

SQL>

The datafiles at the old location still remain and can be manually deleted later as they are no longer part of the database. Note that those datafiles are still registered by RMAN as COPY

RMAN> list copy of pluggable database newpdb;

using target database control file instead of recovery catalog
List of Datafile Copies
=======================

Key File S Completion Time Ckp SCN Ckp Time Sparse
------- ---- - --------------- ---------- --------------- ------
8 16 A 20-JUN-17 2188274 20-JUN-17 NO
Name: /u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_system_dkj7f8go_.dbf
Container ID: 4, PDB Name: NEWPDB

9 17 A 20-JUN-17 2188274 20-JUN-17 NO
Name: /u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_sysaux_dkj7f8hf_.dbf
Container ID: 4, PDB Name: NEWPDB

10 18 A 20-JUN-17 2188274 20-JUN-17 NO
Name: /u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_undotbs1_dkj7f8hg_.dbf
Container ID: 4, PDB Name: NEWPDB

11 19 A 20-JUN-17 2188274 20-JUN-17 NO
Name: /u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_mydata_dmbcp0wz_.dbf
Container ID: 4, PDB Name: NEWPDB


RMAN>

If I manually delete the old location files, I’d need to also delete them from the RMAN Registry. Alternatively, I can directly delete them from RMAN.

RMAN> delete copy of pluggable database newpdb;

allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=278 device type=DISK
List of Datafile Copies
=======================

Key File S Completion Time Ckp SCN Ckp Time Sparse
------- ---- - --------------- ---------- --------------- ------
8 16 A 20-JUN-17 2188274 20-JUN-17 NO
Name: /u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_system_dkj7f8go_.dbf
Container ID: 4, PDB Name: NEWPDB

9 17 A 20-JUN-17 2188274 20-JUN-17 NO
Name: /u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_sysaux_dkj7f8hf_.dbf
Container ID: 4, PDB Name: NEWPDB

10 18 A 20-JUN-17 2188274 20-JUN-17 NO
Name: /u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_undotbs1_dkj7f8hg_.dbf
Container ID: 4, PDB Name: NEWPDB

11 19 A 20-JUN-17 2188274 20-JUN-17 NO
Name: /u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_mydata_dmbcp0wz_.dbf
Container ID: 4, PDB Name: NEWPDB


Do you really want to delete the above objects (enter YES or NO)? YES
deleted datafile copy
datafile copy file name=/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_system_dkj7f8go_.dbf RECID=8 STAMP=947200522
deleted datafile copy
datafile copy file name=/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_sysaux_dkj7f8hf_.dbf RECID=9 STAMP=947200522
deleted datafile copy
datafile copy file name=/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_undotbs1_dkj7f8hg_.dbf RECID=10 STAMP=947200522
deleted datafile copy
datafile copy file name=/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_mydata_dmbcp0wz_.dbf RECID=11 STAMP=947200522
Deleted 4 objects


RMAN>

I still need to relocate the TEMP Tablespace Tempfile.

SQL> alter session set container=NEWPDB;

Session altered.

SQL> select file_name from dba_temp_files;

FILE_NAME
--------------------------------------------------------------------------------
/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_temp_dkj7f8
hg_.dbf


SQL> alter tablespace temp add tempfile '/u03/oradata/NEWPDB/temp01.dbf' size 100M;

Tablespace altered.

SQL>
SQL> alter tablespace temp drop tempfile '/u02/oradata/ORCL12C/4F793A6D323D1344E0530100007FABC7/datafile/o1_mf_temp_dkj7f8hg_.dbf';

Tablespace altered.

SQL> select file_name from dba_temp_files;

FILE_NAME
--------------------------------------------------------------------------------
/u03/oradata/NEWPDB/temp01.dbf

SQL>

So, I used the same Image Copy method we’d use in 11g databases to relocate a 12c Pluggable Database when within the same server and storage.

To verify that I can access the PDB in the new location :

SQL> connect hemant/hemant@NEWPDB
Connected.
SQL> select table_name from user_tables;

TABLE_NAME
--------------------------------------------------------------------------------
OBJ_LIST
HKC_STORE_FILE
T

SQL> insert into obj_list select * from obj_list;

72641 rows created.

SQL> commit;

Commit complete.

SQL>

.
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