ASM迁移至文件系统

发表于 2011 年 8 月 2 日 由 惜分飞

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标题：ASM迁移至文件系统

作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

--创建pfile文件
SQL> create  pfile ='/tmp/pfile' from spfile;

File created.

SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production
With the Partitioning, OLAP and Data Mining options

--修改pfile中关于asm中的内容
control_files
db_recovery_file_dest
log_archive_dest_1
指定到文件系统

--登录rman
[oracle@localhost tmp]$ rman target /

Recovery Manager: Release 10.2.0.3.0 - Production on Mon Jun 27 12:48:26 2011

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: TOS (DBID=1569606545)

--执行backup as copy datafile
RMAN>  backup as copy  datafile '+DATA/tos/datafile/users.276.754906035' format '/u01/oradata/tos/USERS01.dbf';

Starting backup at 27-JUN-11
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=141 devtype=DISK
channel ORA_DISK_1: starting datafile copy
input datafile fno=00004 name=+DATA/tos/datafile/users.276.754906035
output filename=/u01/oradata/tos/USERS01.dbf tag=TAG20110627T124853 recid=17 stamp=754922939
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:07
Finished backup at 27-JUN-11

RMAN>  backup as copy  datafile '+DATA/tos/datafile/sysaux.271.754905929' format '/u01/oradata/tos/SYSAUX01.dbf';

Starting backup at 27-JUN-11
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile fno=00003 name=+DATA/tos/datafile/sysaux.271.754905929
output filename=/u01/oradata/tos/SYSAUX01.dbf tag=TAG20110627T124929 recid=18 stamp=754923029
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:01:05
Finished backup at 27-JUN-11

RMAN>  backup as copy  datafile '+DATA/tos/datafile/undotbs1.273.754906021' format '/u01/oradata/tos/UNDOTBS101.dbf';

Starting backup at 27-JUN-11
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile fno=00002 name=+DATA/tos/datafile/undotbs1.273.754906021
output filename=/u01/oradata/tos/UNDOTBS101.dbf tag=TAG20110627T125049 recid=19 stamp=754923057
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:15
Finished backup at 27-JUN-11

RMAN>  backup as copy  datafile '+DATA/tos/datafile/system.270.754905833' format '/u01/oradata/tos/SYSTEM01.dbf';

Starting backup at 27-JUN-11
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile fno=00001 name=+DATA/tos/datafile/system.270.754905833
output filename=/u01/oradata/tos/SYSTEM01.dbf tag=TAG20110627T125112 recid=20 stamp=754923150
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:01:25
channel ORA_DISK_1: starting datafile copy
copying current control file
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 06/27/2011 12:52:39
ORA-01580: error creating control backup file /u01/oradata/tos/SYSTEM01.dbf
ORA-27038: created file already exists
Additional information: 1
continuing other job steps, job failed will not be re-run
channel ORA_DISK_1: starting full datafile backupset
channel ORA_DISK_1: specifying datafile(s) in backupset
including current SPFILE in backupset
channel ORA_DISK_1: starting piece 1 at 27-JUN-11
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 06/27/2011 12:52:42
ORA-19504: failed to create file "/u01/oradata/tos/SYSTEM01.dbf"
ORA-27038: created file already exists
Additional information: 1
注：因为默认情况下，备份system数据文件是，会自动备份控制文件，这里因为system01.dbf已经备份好，而控制文件再次备份为该名称所以失败

RMAN>  backup as copy  datafile '+DATA/tos/datafile/example.272.754905995' format '/u01/oradata/tos/EXAMPLE01.dbf';

Starting backup at 27-JUN-11
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile fno=00005 name=+DATA/tos/datafile/example.272.754905995
output filename=/u01/oradata/tos/EXAMPLE01.dbf tag=TAG20110627T125341 recid=21 stamp=754923244
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:25
Finished backup at 27-JUN-11

RMAN>  backup as copy  datafile '+DATA/tos/datafile/xff.274.754906027' format '/u01/oradata/tos/XFF01.dbf';

Starting backup at 27-JUN-11
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile fno=00006 name=+DATA/tos/datafile/xff.274.754906027
output filename=/u01/oradata/tos/XFF01.dbf tag=TAG20110627T125415 recid=22 stamp=754923257
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03
Finished backup at 27-JUN-11

RMAN>  backup as copy  datafile '+DATA/tos/datafile/xff.275.754906031' format '/u01/oradata/tos/XFF02.dbf';

Starting backup at 27-JUN-11
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
input datafile fno=00007 name=+DATA/tos/datafile/xff.275.754906031
output filename=/u01/oradata/tos/XFF02.dbf tag=TAG20110627T125507 recid=23 stamp=754923309
channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:04
Finished backup at 27-JUN-11

RMAN> exit

Recovery Manager complete.

--登录sqlplus
[oracle@localhost tmp]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.3.0 - Production on Mon Jun 27 12:55:29 2011

Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production
With the Partitioning, OLAP and Data Mining options

--备份控制文件
SQL> alter database backup controlfile to '/tmp/control.ctl';

Database altered.

--关闭数据库
SQL> shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.

--启动数据库只nomount状态
SQL> startup pfile='/tmp/pfile' nomount;
ORACLE instance started.

Total System Global Area  167772160 bytes
Fixed Size                  1260672 bytes
Variable Size              79692672 bytes
Database Buffers           79691776 bytes
Redo Buffers                7127040 bytes
SQL> exit
Disconnected from Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production
With the Partitioning, OLAP and Data Mining options

[oracle@localhost tmp]$ rman target /

Recovery Manager: Release 10.2.0.3.0 - Production on Mon Jun 27 12:58:22 2011

Copyright (c) 1982, 2005, Oracle.  All rights reserved.

connected to target database: tos (not mounted)

--恢复控制文件
RMAN> restore controlfile from '/tmp/control.ctl';

Starting restore at 27-JUN-11
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK

channel ORA_DISK_1: copied control file copy
output filename=/u01/oradata/tos/control01.ctl
output filename=/u01/oradata/tos/control02.ctl
Finished restore at 27-JUN-11

--启动数据库只mount状态
RMAN> alter database mount;

database mounted
released channel: ORA_DISK_1

--修改数据文件在控制文件中位置
RMAN> switch tablespace SYSTEM to copy;

Starting implicit crosscheck backup at 27-JUN-11
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid=156 devtype=DISK
Finished implicit crosscheck backup at 27-JUN-11

Starting implicit crosscheck copy at 27-JUN-11
using channel ORA_DISK_1
Crosschecked 15 objects
Finished implicit crosscheck copy at 27-JUN-11

searching for all files in the recovery area
cataloging files...
no files cataloged

datafile 1 switched to datafile copy "/u01/oradata/tos/SYSTEM01.dbf"

RMAN> switch tablespace UNDOTBS1 to copy;

datafile 2 switched to datafile copy "/u01/oradata/tos/UNDOTBS101.dbf"

RMAN>  switch tablespace SYSAUX to copy;

datafile 3 switched to datafile copy "/u01/oradata/tos/SYSAUX01.dbf"

RMAN> switch tablespace USERS to copy;

datafile 4 switched to datafile copy "/u01/oradata/tos/USERS01.dbf"


RMAN>  switch tablespace EXAMPLE to copy;

datafile 5 switched to datafile copy "/u01/oradata/tos/EXAMPLE01.dbf"

RMAN>  switch tablespace XFF to copy;

datafile 6 switched to datafile copy "/u01/oradata/tos/XFF01.dbf"
datafile 7 switched to datafile copy "/u01/oradata/tos/XFF02.dbf"

--恢复数据库
RMAN> recover database;

Starting recover at 27-JUN-11
using channel ORA_DISK_1

starting media recovery

archive log thread 1 sequence 9 is already on disk as file +DATA/tos/onlinelog/group_6.279.754906321
archive log filename=+DATA/tos/onlinelog/group_6.279.754906321 thread=1 sequence=9
media recovery complete, elapsed time: 00:00:03
Finished recover at 27-JUN-11

--打开数据库
RMAN> alter database open;

RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of alter db command at 06/27/2011 13:00:36
ORA-01589: must use RESETLOGS or NORESETLOGS option for database open

RMAN> alter database open resetlogs;

database opened
注：不能直接使用open打开

RMAN> exit


Recovery Manager complete.

[oracle@localhost tmp]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.3.0 - Production on Mon Jun 27 13:02:53 2011

Copyright (c) 1982, 2006, Oracle.  All Rights Reserved.


Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - Production
With the Partitioning, OLAP and Data Mining options

--增加redo log
SQL> alter database add logfile group 1 '/u01/oradata/tos/redo01.log' size 10m;

Database altered.

SQL> alter database add logfile group 2 '/u01/oradata/tos/redo02.log' size 10m;

Database altered.

SQL> alter database add logfile group 3 '/u01/oradata/tos/redo03.log' size 10m;

Database altered.

--切换日志
SQL>  alter system switch logfile;

System altered.

SQL> /

System altered.

SQL> /

System altered.

SQL> /

System altered.

--内存中数据写入硬盘
SQL> alter system checkpoint;

System altered.

--查询当前日志组状态
SQL>  select group#,status from v$log;

    GROUP# STATUS
---------- ----------------
         1 CURRENT
         2 INACTIVE
         3 INACTIVE
         4 INACTIVE
         5 INACTIVE
         6 INACTIVE

6 rows selected.

--删除asm中日志
SQL> alter database drop logfile group 4;

Database altered.

SQL> alter database drop logfile group 5;

Database altered.

SQL> alter database drop logfile group 6;

Database altered.

--添加临时文件
SQL> alter tablespace temp add tempfile '/u01/oradata/tos/temp01.dbf' size 30m autoextend on maxsize 1g;

Tablespace altered.

--查看临时表空间中临时文件
SQL> select name from v$tempfile;

NAME
--------------------------------------------------------------------------------
/u01/oradata/tos/temp01.dbf
+DATA/tos/tempfile/temp.280.754906369

--删除asm中临时文件
SQL> alter tablespace temp drop tempfile '+DATA/tos/tempfile/temp.280.754906369';

Tablespace altered.

--查看迁移结果
SQL> set pagesize 100
SQL> select name from v$datafile
  2   union
  3   select member from v$logfile
  4   union
  5   select name from v$controlfile
  6   union
  7   select name from v$tempfile;

NAME
------------------------------------------------------------------
/u01/oradata/tos/EXAMPLE01.dbf
/u01/oradata/tos/SYSAUX01.dbf
/u01/oradata/tos/SYSTEM01.dbf
/u01/oradata/tos/UNDOTBS101.dbf
/u01/oradata/tos/USERS01.dbf
/u01/oradata/tos/XFF01.dbf
/u01/oradata/tos/XFF02.dbf
/u01/oradata/tos/control01.ctl
/u01/oradata/tos/control02.ctl
/u01/oradata/tos/redo01.log
/u01/oradata/tos/redo02.log
/u01/oradata/tos/redo03.log
/u01/oradata/tos/temp01.dbf

13 rows selected.

--创建spfile文件
SQL> create spfile from pfile='/tmp/pfile';

File created.
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《ASM迁移至文件系统》有 2 条评论

  1. 冷泉 说：
    2013 年 1 月 9 日19:45

    实用，谢谢飞总

  2. 惜 分飞 说：
    2011 年 8 月 2 日18:50

    可以使用switch database to copy;
    取代 switch tablespace name to copy;