asm数据文件迁移(asm–>os)

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标题：asm数据文件迁移(asm–>os)

作者：惜分飞©版权所有[文章允许转载,但必须以链接方式注明源地址,否则追究法律责任.]

--查看当前情况
SQL> select count(*) from hr.a;

  COUNT(*)
----------
      1580

SQL>  select name from v$DATAFILE;

NAME
-----------------------------------------------------------
+DATA/tasm/system01.dbf
+DATA/tasm/undotbs01.dbf
+DATA/tasm/sysaux01.dbf
+DATA/tasm/users01.dbf
+DATA/tasm/example01.dbf
+DG2/tasm/datafile/xff.256.754902279

6 rows selected.

--创建目录
SQL>  create directory asmsrc as '+DG2/TASM/datafile';

Directory created.

SQL>  create directory osdesc as '/u01/oradata';

Directory created.

--表空间离线
SQL> alter tablespace xff offline;

Tablespace altered.

--数据文件迁移
SQL> begin
  2      dbms_file_transfer.copy_file('ASMSRC',
  3      'xff.256.754902279',
  4      'OSDESC',
  5      'xff_new_2.dbf');
  6  END;
  7  /

PL/SQL procedure successfully completed.

--修改数据库中datafile路径
SQL> alter database rename file
  2             '+DG2/tasm/datafile/xff.256.754902279'
  3             to '/u01/oradata/xff_new_2.dbf';

Database altered.

--表空间在线
SQL> alter tablespace xff online;

Tablespace altered.

--测试迁移结果
SQL> select name from v$DATAFILE;

NAME
-------------------------------------------------------------------
+DATA/tasm/system01.dbf
+DATA/tasm/undotbs01.dbf
+DATA/tasm/sysaux01.dbf
+DATA/tasm/users01.dbf
+DATA/tasm/example01.dbf
/u01/oradata/xff_new_2.dbf

6 rows selected.

SQL> select count(*) from hr.a;

  COUNT(*)
----------
      1580

--删除asm中文件
ASMCMD> rm XFF.256.754902279
ORA-15032: not all alterations performed
ORA-15028: ASM file '+dg2/tasm/datafile/XFF.256.754902279' not dropped; 
currently being accessed (DBD ERROR: OCIStmtExecute)
--不能直接删除，关闭数据库后可以删除（应该是bug）