Oracle ASM File Copy
ASM File Copy
標籤： Oracle
ASM File Copy
這是一個存儲過程包，是除了RMAN之外又一個用於執行遷移任務的工具包，可以完成如下的遷移：ASM->ASM、ASM->OS Flie、OS File->ASM、OS File->OS File。
使用DBMS_FILE_TRANSFER遷移表空間和數據文件
流程：
1.Tablespace Offline
2.建立Source Dir & Target Dir
3.檔案copy ，Dbms_file_transfer.copy_file
4.更改檔案路徑，alter database rename file
5.Tablespace Online
從文件系統到ASM
SQL> select name from v$datafile;
NAME
——————————————————————————–
/u01/oracle/10g/oradata/gt10g/system01.dbf
/u01/oracle/10g/oradata/gt10g/undotbs1.dbf
/u01/oracle/10g/oradata/gt10g/sysaux01.dbf
/u01/oracle/10g/oradata/gt10g/users01.dbf
/u01/oracle/10g/oradata/gt10g/gtlions01.dbf
/u01/oracle/10g/oradata/gt10g/gtlions02.dbf
6 rows selected.
查詢directory的位址：
SQL>Select * from dba_directories;
create directory source_dir as '/u01/oradata/oracl';
create directory dest_dir as '/u01/copies';
dbms_file_transfer格式：
範例：
begin
DBMS_FILE_TRANSFER.COPY_FILE(
source_directory_object => 'SOURCE_DIR',
source_file_name => 'example01.dbf',
destination_directory_object => 'DEST_DIR',
destination_file_name => 'example01_copy.dbf');
END;
/
SQL> alter tablespace gtlions offline;
Tablespace altered.
SQL> begin dbms_file_transfer.copy_file('dir1','gtlions01.dbf','dir2','gtlions01.dbf'); end;
2 /
PL/SQL procedure successfully completed.
SQL> alter database rename file'/u01/oracle/10g/oradata/gt10g/gtlions01.dbf' to'+DATA01/gt10g/datafile/gtlions01.dbf';
Database altered.
SQL> alter database rename file'/u01/oracle/10g/oradata/gt10g/gtlions02.dbf' to'+DATA01/gt10g/datafile/gtlions02.dbf';
Database altered.
SQL> alter tablespace gtlions online;
Tablespace altered.
SQL> select name from v$datafile;
NAME
——————————————————————————–
/u01/oracle/10g/oradata/gt10g/system01.dbf
/u01/oracle/10g/oradata/gt10g/undotbs1.dbf
/u01/oracle/10g/oradata/gt10g/sysaux01.dbf
/u01/oracle/10g/oradata/gt10g/users01.dbf
+DATA01/gt10g/datafile/gtlions01.dbf
+DATA01/gt10g/datafile/gtlions02.dbf
6 rows selected.
******************************************************
從ASM到文件系統
SQL> select name from v$datafile;
NAME
——————————————————————————–
/u01/oracle/10g/oradata/gt10g/system01.dbf
/u01/oracle/10g/oradata/gt10g/undotbs1.dbf
/u01/oracle/10g/oradata/gt10g/sysaux01.dbf
/u01/oracle/10g/oradata/gt10g/users01.dbf
+DATA01/gt10g/datafile/gtlions.263.808393465
+DATA01/gt10g/datafile/gtlions.262.808393513
6 rows selected.
–我們將遷移表空間gtlions的兩個數據文件
–創建源和目標目錄
SQL> create or replace directory dir1 as'/u01/oracle/10g/oradata/gt10g/';
Directory created.
SQL> create or replace directory dir2 as'+DATA01/gt10g/datafile/';
Directory created.
–開始傳輸文件
SQL> begin
2 dbms_file_transfer.copy_file('dir2','gtlions.263.808393465','dir1','gtlions01.dbf');
3 end;
4 /
PL/SQL procedure successfully completed.
SQL> begin
2 dbms_file_transfer.copy_file('dir2','gtlions.262.808393513','dir1','gtlions02.dbf');
3 end;
4 /
PL/SQL procedure successfully completed.
–重新定位文件位置
SQL> alter database rename file'+DATA01/gt10g/datafile/gtlions.263.808393465' to'/u01/oracle/10g/oradata/gt10g/gtlions01.dbf';
Database altered.
SQL> alter database rename file'+DATA01/gt10g/datafile/gtlions.262.808393513' to '/u01/oracle/10g/oradata/gt10g/gtlions02.dbf';
Database altered.
SQL> alter tablespace gtlions online;
Tablespace altered.
SQL> select name from v$datafile;
NAME
——————————————————————————–
/u01/oracle/10g/oradata/gt10g/system01.dbf
/u01/oracle/10g/oradata/gt10g/undotbs1.dbf
/u01/oracle/10g/oradata/gt10g/sysaux01.dbf
/u01/oracle/10g/oradata/gt10g/users01.dbf
/u01/oracle/10g/oradata/gt10g/gtlions01.dbf
/u01/oracle/10g/oradata/gt10g/gtlions02.dbf
6 rows selected.
需要注意的目標文件如果是存放在ASM中，那麼指定生成的文件是alias，實際還是會生成固定格式的文件：
[oracle@gtser1 ~]$ asmcmd ls -l data01/gt10g/datafile
Type Redund Striped Time Sys Name
DATAFILE UNPROT COARSE FEB 26 13:00:00 Y COPY_FILE.262.808407481
DATAFILE UNPROT COARSE FEB 26 13:00:00 Y COPY_FILE.263.808407501
DATAFILE UNPROT COARSE FEB 25 16:00:00 Y GTLIONS.256.808328331
DATAFILE UNPROT COARSE FEB 25 15:00:00 Y GTLIONS.258.808326729
DATAFILE UNPROT COARSE FEB 25 15:00:00 Y GTLIONS.265.808326737
DATAFILE UNPROT COARSE FEB 25 16:00:00 Y GTLIONS.281.808328327
DATAFILE UNPROT COARSE FEB 25 16:00:00 Y SYSAUX.272.808328281
DATAFILE UNPROT COARSE FEB 25 16:00:00 Y SYSTEM.271.808328265
DATAFILE UNPROT COARSE FEB 25 16:00:00 Y UNDOTBS1.273.808328327
N gtlions01.dbf =>+DATA01/GT10G/DATAFILE/COPY_FILE.262.808407481
N gtlions02.dbf =>+DATA01/GT10G/DATAFILE/COPY_FILE.263.808407501
-The End-
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