遷移ORACLE數據庫文件到ASM

遷移數據文件到ASM

數據庫一致性狀況下遷移:將數據庫啓動到mount狀態,生成rman copy 語句,而後在rman中執行:

SQL> startup mount
SQL> select q'(copy datafile ')'||name||q'(' to '+oradata';)' from v$datafile;
Q'(COPYDATAFILE')'||NAME||Q'('TO'+ORADATA';)'
-------------------------------------------------------------------------------
copy datafile 'D:\NSOADP\SYSTEM01.DBF' to '+oradata';
copy datafile 'D:\NSOADP\SYSAUX01.DBF' to '+oradata';
copy datafile 'F:\NSOADP\UNDOTBS01.DBF' to '+oradata';
copy datafile 'D:\NSOADP\USERS01.DBF' to '+oradata';
SQL> exit
D:\>rman target /
RMAN> run
2> {
3> copy datafile 'D:\NSOADP\SYSTEM01.DBF' to '+oradata';
4> copy datafile 'D:\NSOADP\SYSAUX01.DBF' to '+oradata';
5> copy datafile 'F:\NSOADP\UNDOTBS01.DBF' to '+oradata';
6> copy datafile 'D:\NSOADP\USERS01.DBF' to '+oradata';
7>}
啓動 backup 於 2015-04-15 10:02:44
使用通道 ORA_DISK_1
通道 ORA_DISK_1: 啓動數據文件副本
輸入數據文件: 文件號=00001 名稱=D:\NSOADP\SYSTEM01.DBF
輸出文件名=+ORADATA/nsoa/datafile/system.260.877082571 標記=TAG20150415T100250 RECID=265 STAMP=877082603
通道 ORA_DISK_1: 數據文件複製完畢, 通過時間: 00:00:35
完成 backup 於 2015-04-15 10:03:25
……

  生成更改控制文件數據名的語句,而後執行更改:

SQL> SELECT --T.NAME,T.FILE#,C.FILE#,C.NAME
  2  q'(ALTER DATABASE RENAME FILE ')'||c.name||q'(' to ')'||t.name||q'(';)'
  3   FROM V$DATAFILE_COPY T LEFT JOIN V$DATAFILE C
  4  ON T.FILE#=C.FILE#
  5  WHERE T.NAME IS NOT NULL  order by COMPLETION_TIME desc;

SQL> alter database rename file 'D:\NSOADP\SYSTEM01.DBF' to '+ORADATA/nsoa/datafile/system.260.877082571';

  數據庫非一致性狀況下遷移(歸檔模式):
使用 alter database datafile '' offline 命令將數據文件offline,而後同上面的方式同樣處理,最後將數據文件online

SQL> alter database datafile '/u01/oradata/sydb/user01.dbf' offline;

RMAN> copy datafile '/u01/oradata/sydb/user01.dbf' to '+oradata';

Starting backup at 23-APR-15
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=180 device type=DISK
channel ORA_DISK_1: starting datafile copy
input datafile file number=00004 name=/u01/oradata/sydb/user01.dbf
output file name=+ORADATA/sydb/datafile/users.257.877803115 tag=TAG20150423T181155 RECID=1 STAMP=877803123
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:15
Finished backup at 23-APR-15

SQL> alter database rename file '/u01/oradata/sydb/user01.dbf' to '+ORADATA/sydb/datafile/users.257.877803115';
SQL> alter database datafile '+ORADATA/sydb/datafile/users.257.877803115' online;
alter database datafile '+ORADATA/sydb/datafile/users.257.877803115' online
*
ERROR at line 1:
ORA-01113: file 4 needs media recovery
ORA-01110: data file 4: '+ORADATA/sydb/datafile/users.257.877803115'
SQL> recover datafile '+ORADATA/sydb/datafile/users.257.877803115';
Media recovery complete.
SQL> alter database datafile '+ORADATA/sydb/datafile/users.257.877803115' online;

 遷移日誌文件到ASM 

 能夠在mount或open狀態遷移非current或active日誌文件到asm;方法將已有的日誌文件(每一個日誌組必須有一個member)或日誌組(數據庫必須有兩個日誌組存在)刪除,而後添加新的日誌文件或日誌組;

alter database drop logfile member 'E:\NSOADP\REDO07.LOG';  #刪除日誌文件
alter database drop logfile group 2;  #刪除日誌組
alter database add logfile member '+oradata' to group 7;   #添加日誌文件
alter database add logfile ( '+oradata','oradata') size 50m;  #添加有兩個成員的日誌組
alter database add logfile '+oradata','oradata' size 50m;  #同時添加兩個日誌組

 遷移控制文件到ASM

 首先肯定好控制文件位置和名稱 

SQL> show parameter control_file
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer     7
control_files                        string      F:\NSOADP\CONTROL01.CTL

 修改control_files初始化參數值爲asm,而後重啓數據庫到nomount狀態:

SQL> alter system set control_files='+oradata' scope=spfile;
SQL> shutdown immediate;
SQL> startup nomount

  使用rman複製當前的控制文件到asm

rman target /
RMAN> restore controlfile from 'F:\NSOADP\CONTROL01.CTL';
啓動 restore 於 2015-04-22 09:40:30
使用目標數據庫控制文件替代恢復目錄
分配的通道: ORA_DISK_1
通道 ORA_DISK_1: SID=70 設備類型=DISK

通道 ORA_DISK_1: 已複製控制文件副本
輸出文件名=+ORADATA/nsoa/controlfile/current.314.877686033
完成 restore 於 2015-04-22 09:40:39

  注:若是使用備份的控制文件進行還原,而數據庫之前有過RESETLOGS操做或建立控制文件時建立語句指定了RESETLOGS,則必須以RESETLOGS方式打開數據庫。 

SQL> alter database mount;
SQL> show parameter control_file

NAME                                 TYPE                   VALUE
------------------------------------ ---------------------- ------------------------------
control_file_record_keep_time        integer                7
control_files                        string                 +ORADATA/nsoa/controlfile/curr
                                                            ent.314.877686033
SQL> alter database open;

 --Then end (2015-04-25)