将文件系统数据库迁移到ASM中

使用裸设备配置ASM实例

http://www.cnblogs.com/myrunning/p/4270849.html

1.查看我们创建的磁盘组

[oracle@std ~]$ export ORACLE_SID=+ASM
[oracle@std ~]$ sqlplus '/as sysdba'
 
SQL*Plus: Release 10.2.0.4. - Production on Mon Feb  :: 
 
Copyright (c) , , Oracle.  All Rights Reserved.
 
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.4. - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
 
SQL> select name,total_mb,free_mb from v$asm_diskgroup;
 
NAME                             TOTAL_MB    FREE_MB
------------------------------ ---------- ----------
DATA
FLA

2.启动数据库实例查看数据文件等

SQL> select * from v$dbfile;   
 
     FILE# NAME
---------- --------------------------------------------------
          /u02/app/oradata/ZDJS/users01.dbf
          /u02/app/oradata/ZDJS/sysaux01.dbf
          /u02/app/oradata/ZDJS/undotbs01.dbf
          /u02/app/oradata/ZDJS/system01.dbf
          /u02/app/oradata/ZDJS/example01.dbf
          /u02/app/oradata/ZDJS/rlsc01.dbf
 
 rows selected.
 
SQL> select file#,name from v$tempfile;
 
     FILE# NAME
---------- --------------------------------------------------
          /u02/app/oradata/ZDJS/temp01.dbf
 
SQL> show parameter control_
 
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer
control_files                        string      /u02/app/oradata/ZDJS/control0
                                                 .ctl, /u02/app/oradata/ZDJS/c
                                                 ontrol02.ctl, /u02/app/oradata
                                                 /ZDJS/control03.ctl
SQL> show parameter spfile
 
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
spfile                               string      /u02/app/product/10.2./db_1/d
                                                 bs/spfileZDJS.ora
 
SQL> select group#,member from v$logfile;
 
    GROUP# MEMBER
---------- --------------------------------------------------
          /u02/app/oradata/ZDJS/redo03.log
          /u02/app/oradata/ZDJS/redo02.log
          /u02/app/oradata/ZDJS/redo01.log

3.对RDBMS做一个备份

[oracle@std ~]$ rman target /
 
Recovery Manager: Release 10.2.0.4. - Production on Mon Feb  :: 
 
Copyright (c) , , Oracle.  All rights reserved.
 
connected to target database: ZDJS (DBID=)
 
RMAN> backup as copy database format '+DATA';
 
Starting backup at -FEB-
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid= devtype=DISK
channel ORA_DISK_1: starting datafile copy
input datafile fno= name=/u02/app/oradata/ZDJS/system01.dbf
output filename=+DATA/zdjs/datafile/system.256.870616471 tag=TAG20150202T135428 recid= stamp=
channel ORA_DISK_1: datafile copy complete, elapsed time: ::
channel ORA_DISK_1: starting datafile copy
input datafile fno= name=/u02/app/oradata/ZDJS/undotbs01.dbf
output filename=+DATA/zdjs/datafile/undotbs1.257.870616525 tag=TAG20150202T135428 recid= stamp=
channel ORA_DISK_1: datafile copy complete, elapsed time: ::
channel ORA_DISK_1: starting datafile copy
input datafile fno= name=/u02/app/oradata/ZDJS/sysaux01.dbf
output filename=+DATA/zdjs/datafile/sysaux.258.870616569 tag=TAG20150202T135428 recid= stamp=
channel ORA_DISK_1: datafile copy complete, elapsed time: ::
channel ORA_DISK_1: starting datafile copy
input datafile fno= name=/u02/app/oradata/ZDJS/example01.dbf
output filename=+DATA/zdjs/datafile/example.259.870616605 tag=TAG20150202T135428 recid= stamp=
channel ORA_DISK_1: datafile copy complete, elapsed time: ::
channel ORA_DISK_1: starting datafile copy
input datafile fno= name=/u02/app/oradata/ZDJS/rlsc01.dbf
output filename=+DATA/zdjs/datafile/rlsc.260.870616621 tag=TAG20150202T135428 recid= stamp=
channel ORA_DISK_1: datafile copy complete, elapsed time: ::
channel ORA_DISK_1: starting datafile copy
input datafile fno= name=/u02/app/oradata/ZDJS/users01.dbf
output filename=+DATA/zdjs/datafile/users.261.870616635 tag=TAG20150202T135428 recid= stamp=
channel ORA_DISK_1: datafile copy complete, elapsed time: ::
channel ORA_DISK_1: starting datafile copy
copying current control file
output filename=+DATA/zdjs/controlfile/backup.262.870616639 tag=TAG20150202T135428 recid= stamp=
channel ORA_DISK_1: datafile copy complete, elapsed time: ::
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  at -FEB-
channel ORA_DISK_1: finished piece  at -FEB-
piece handle=+DATA/zdjs/backupset/2015_02_02/nnsnf0_tag20150202t135428_0.263.870616647 tag=TAG20150202T135428 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: ::
Finished backup at -FEB-

4.修改RDBMS参数

SQL> alter system set db_recovery_file_dest_size=3g scope=both;
 
System altered.
 
SQL> alter system set db_recovery_file_dest='+FLA' scope=both;
 
System altered.
 
SQL> alter system set db_create_file_dest='+DATA' scope=both;  
 
System altered.
 
SQL> alter system set db_create_online_log_dest_1='+DATA' scope=spfile;
 
System altered.

5.迁移联机日志到ASM磁盘

SQL> select a.group#,a.status,b.member from v$log a,v$logfile b
    where a.group#=b.group#;
 
    GROUP# STATUS           MEMBER
---------- ---------------- --------------------------------------------------
          INACTIVE         /u02/app/oradata/ZDJS/redo03.log
          INACTIVE         /u02/app/oradata/ZDJS/redo02.log
          CURRENT          /u02/app/oradata/ZDJS/redo01.log
 
SQL> alter database add logfile member '+DATA','+FLA' to group ;
 
Database altered.
 
SQL> alter database add logfile member '+DATA','+FLA' to group ;
 
Database altered.
 
SQL> alter database add logfile member '+DATA','+FLA' to group ;
 
Database altered.
 
SQL> select a.group#,a.status,b.member from v$log a,v$logfile b
    where a.group#=b.group#;
 
    GROUP# STATUS           MEMBER
---------- ---------------- --------------------------------------------------
          INACTIVE         /u02/app/oradata/ZDJS/redo03.log
          INACTIVE         /u02/app/oradata/ZDJS/redo02.log
          CURRENT          /u02/app/oradata/ZDJS/redo01.log
          CURRENT          +DATA/zdjs/onlinelog/group_1.264.870617701
          CURRENT          +FLA/zdjs/onlinelog/group_1.256.870617713
          INACTIVE         +DATA/zdjs/onlinelog/group_2.265.870617759
          INACTIVE         +FLA/zdjs/onlinelog/group_2.257.870617769
          INACTIVE         +DATA/zdjs/onlinelog/group_3.266.870618057
          INACTIVE         +FLA/zdjs/onlinelog/group_3.258.870618067
 
 rows selected.

删除原来的状态为INACTIVE的联机日志，通过alter system switch logfile;命令切换日志

SQL> alter database drop logfile member '/u02/app/oradata/ZDJS/redo01.log';
 
Database altered.
 
SQL> alter database drop logfile member '/u02/app/oradata/ZDJS/redo02.log';
 
Database altered.
 
SQL> alter database drop logfile member '/u02/app/oradata/ZDJS/redo03.log';
 
Database altered.
 
SQL> select a.group#,a.status,b.member from v$log a,v$logfile b
    where a.group#=b.group# order by group#;
 
    GROUP# STATUS           MEMBER
---------- ---------------- --------------------------------------------------
          CURRENT          +DATA/zdjs/onlinelog/group_1.264.870617701
          CURRENT          +FLA/zdjs/onlinelog/group_1.256.870617713
          INACTIVE         +DATA/zdjs/onlinelog/group_2.265.870617759
          INACTIVE         +FLA/zdjs/onlinelog/group_2.257.870617769
          INACTIVE         +DATA/zdjs/onlinelog/group_3.266.870618057
          INACTIVE         +FLA/zdjs/onlinelog/group_3.258.870618067
 
 rows selected.

6.迁移临时表空间到ASM磁盘

SQL> select tablespace_name,file_name,bytes// size_m
    from dba_temp_files;
 
TABLESPACE_NAME      FILE_NAME                                    SIZE_M
-------------------- ---------------------------------------- ----------
TEMP                 /u02/app/oradata/ZDJS/temp01.dbf                 
 
SQL> alter tablespace temp add tempfile size 100m;
 
Tablespace altered.
 
SQL> select tablespace_name,file_name,bytes// size_m
    from dba_temp_files;
 
TABLESPACE_NAME      FILE_NAME                                    SIZE_M
-------------------- ---------------------------------------- ----------
TEMP                 +DATA/zdjs/tempfile/temp.267.870619111
TEMP                 /u02/app/oradata/ZDJS/temp01.dbf                 
 
SQL> alter database tempfile '/u02/app/oradata/ZDJS/temp01.dbf' drop ;
 
Database altered.
 
SQL> select tablespace_name,file_name,bytes// size_m
    from dba_temp_files;
 
TABLESPACE_NAME      FILE_NAME                                    SIZE_M
-------------------- ---------------------------------------- ----------
TEMP                 +DATA/zdjs/tempfile/temp.267.870619111

7.迁移控制文件、数据文件到ASM磁盘

在整个迁移过程中，只有这一步需要对数据库实例进行关闭、启动;这一步实际就是一个完全恢复的过程。

SQL> show parameter control 
 
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer
control_files                        string      /u02/app/oradata/ZDJS/control0
                                                 .ctl, /u02/app/oradata/ZDJS/c
                                                 ontrol02.ctl, /u02/app/oradata
                                                 /ZDJS/control03.ctl
SQL> alter system set control_files='+DATA/ZDJS/CONTROLFILE/control01.ctl',
    '+DATA/ZDJS/CONTROLFILE/control02.ctl','+DATA/ZDJS/CONTROLFILE/control03.ctl'
    scope=spfile;
 
System altered.
 
SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup nomount
ORACLE instance started.
 
Total System Global Area   bytes
Fixed Size                   bytes
Variable Size              bytes
Database Buffers           bytes
Redo Buffers                 bytes

把数据库启动到nomount状态后使用rman进行恢复：

[oracle@std ~]$ rman target /
 
Recovery Manager: Release 10.2.0.4. - Production on Mon Feb  :: 
 
Copyright (c) , , Oracle.  All rights reserved.
 
connected to target database: ZDJS (not mounted)
 
RMAN> restore controlfile from '/u02/app/oradata/ZDJS/control01.ctl';
 
Starting restore at -FEB-
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid= devtype=DISK
 
channel ORA_DISK_1: copied control file copy
output filename=+DATA/zdjs/controlfile/control01.ctl
output filename=+DATA/zdjs/controlfile/control02.ctl
output filename=+DATA/zdjs/controlfile/control03.ctl
Finished restore at -FEB-

使用rman从最近的控制文件直接恢复控制文件，我们使用asmcmd工具确认一下恢复的控制文件是否存在：

ASMCMD> pwd
+DATA/ZDJS/CONTROLFILE
ASMCMD> ls
Backup.262.870616639
control01.ctl
control02.ctl
control03.ctl
current.268.870620187
current.269.870620189
current.270.870620189

mount数据库后使用rman switch数据库：

SQL> alter database mount;
 
Database altered.

[oracle@std ~]$ rman target /
 
Recovery Manager: Release 10.2.0.4. - Production on Mon Feb  :: 
 
Copyright (c) , , Oracle.  All rights reserved.
 
connected to target database: ZDJS (DBID=, not open)
 
RMAN> list copy;
 
using target database control file instead of recovery catalog
 
List of Datafile Copies
Key     File S Completion Time Ckp SCN    Ckp Time        Name
------- ---- - --------------- ---------- --------------- ----
           A -FEB-            -FEB-       +DATA/zdjs/datafile/system.256.870616471
           A -FEB-            -FEB-       +DATA/zdjs/datafile/undotbs1.257.870616525
           A -FEB-            -FEB-       +DATA/zdjs/datafile/sysaux.258.870616569
           A -FEB-            -FEB-       +DATA/zdjs/datafile/users.261.870616635
           A -FEB-            -FEB-       +DATA/zdjs/datafile/example.259.870616605
           A -FEB-            -FEB-       +DATA/zdjs/datafile/rlsc.260.870616621
 
List of Control File Copies
Key     S Completion Time Ckp SCN    Ckp Time        Name
------- - --------------- ---------- --------------- ----
       A -FEB-            -FEB-       +DATA/zdjs/controlfile/backup.262.870616639
       A -FEB-            -FEB-       +DATA/zdjs/controlfile/backup.256.870616081
 
List of Archived Log Copies
Key     Thrd Seq     S Low Time  Name
------- ---- ------- - --------- ----
                 A -JAN- /u02/ZDJS_ARCH/1_35_869134589.dbf
                 A -FEB- /u02/ZDJS_ARCH/1_36_869134589.dbf
                 A -FEB- /u02/ZDJS_ARCH/1_37_869134589.dbf
                 A -FEB- /u02/ZDJS_ARCH/1_38_869134589.dbf
                 A -FEB- /u02/ZDJS_ARCH/1_39_869134589.dbf
                 A -FEB- /u02/ZDJS_ARCH/1_40_869134589.dbf
                 A -FEB- /u02/ZDJS_ARCH/1_41_869134589.dbf
                 A -FEB- /u02/ZDJS_ARCH/1_42_869134589.dbf
                 A -FEB- /u02/ZDJS_ARCH/1_43_869134589.dbf
 
RMAN> switch database to copy;

datafile  switched to datafile copy "+DATA/zdjs/datafile/system.256.870616471"
datafile  switched to datafile copy "+DATA/zdjs/datafile/undotbs1.257.870616525"
datafile  switched to datafile copy "+DATA/zdjs/datafile/sysaux.258.870616569"
datafile  switched to datafile copy "+DATA/zdjs/datafile/users.261.870616635"
datafile  switched to datafile copy "+DATA/zdjs/datafile/example.259.870616605"
datafile  switched to datafile copy "+DATA/zdjs/datafile/rlsc.260.870616621"
 
RMAN> recover database;  --切换后现在使用的是磁盘组里的备份文件，所有我们需要进行恢复
 
Starting recover at -FEB-
allocated channel: ORA_DISK_1
channel ORA_DISK_1: sid= devtype=DISK
 
starting media recovery
 
archive log thread  sequence  is already on disk as file /u02/ZDJS_ARCH/1_35_869134589.dbf
archive log thread  sequence  is already on disk as file /u02/ZDJS_ARCH/1_36_869134589.dbf
archive log thread  sequence  is already on disk as file /u02/ZDJS_ARCH/1_37_869134589.dbf
archive log thread  sequence  is already on disk as file /u02/ZDJS_ARCH/1_38_869134589.dbf
archive log thread  sequence  is already on disk as file /u02/ZDJS_ARCH/1_39_869134589.dbf
archive log thread  sequence  is already on disk as file /u02/ZDJS_ARCH/1_40_869134589.dbf
archive log thread  sequence  is already on disk as file /u02/ZDJS_ARCH/1_41_869134589.dbf
archive log thread  sequence  is already on disk as file /u02/ZDJS_ARCH/1_42_869134589.dbf
archive log thread  sequence  is already on disk as file /u02/ZDJS_ARCH/1_43_869134589.dbf
archive log filename=/u02/ZDJS_ARCH/1_35_869134589.dbf thread= sequence=
archive log filename=/u02/ZDJS_ARCH/1_36_869134589.dbf thread= sequence=
archive log filename=/u02/ZDJS_ARCH/1_37_869134589.dbf thread= sequence=
archive log filename=/u02/ZDJS_ARCH/1_38_869134589.dbf thread= sequence=
archive log filename=/u02/ZDJS_ARCH/1_39_869134589.dbf thread= sequence=
archive log filename=/u02/ZDJS_ARCH/1_40_869134589.dbf thread= sequence=
archive log filename=/u02/ZDJS_ARCH/1_41_869134589.dbf thread= sequence=
media recovery complete, elapsed time: ::
Finished recover at -FEB-
 
RMAN> alter database open;
 
database opened

8.验证迁移后的文件

SQL> select * from v$dbfile;
 
     FILE# NAME
---------- --------------------------------------------------
          +DATA/zdjs/datafile/users.261.870616635
          +DATA/zdjs/datafile/sysaux.258.870616569
          +DATA/zdjs/datafile/undotbs1.257.870616525
          +DATA/zdjs/datafile/system.256.870616471
          +DATA/zdjs/datafile/example.259.870616605
          +DATA/zdjs/datafile/rlsc.260.870616621
 
 rows selected.
 
SQL> select file#,name from v$tempfile;
 
     FILE# NAME
---------- --------------------------------------------------
          +DATA/zdjs/tempfile/temp.267.870619111
 
SQL> show parameter control_
 
NAME                                 TYPE        VALUE
------------------------------------ ----------- ------------------------------
control_file_record_keep_time        integer
control_files                        string      +DATA/zdjs/controlfile/control
                                                 .ctl, +DATA/zdjs/controlfile
                                                 /control02.ctl, +DATA/zdjs/con
                                                 trolfile/control03.ctl
 
SQL> select group#,member from v$logfile;
 
    GROUP# MEMBER
---------- --------------------------------------------------
          +DATA/zdjs/onlinelog/group_1.264.870617701
          +FLA/zdjs/onlinelog/group_1.256.870617713
          +DATA/zdjs/onlinelog/group_2.265.870617759
          +FLA/zdjs/onlinelog/group_2.257.870617769
          +DATA/zdjs/onlinelog/group_3.266.870618057
          +FLA/zdjs/onlinelog/group_3.258.870618067
 
 rows selected.

#ASM和OS文件系统之间交换可以使用dbms_file_transfer包或rman的convert方法

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将文件系统数据库迁移到ASM中

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