? 本實驗主要介紹將數據庫遷移到ASM的過程，并不介紹ASM實例的搭建。實驗環境：solaris10+oracle 10R

1.遷移前期準備

1.1 ASM實例搭建(略)

1.2 磁盤分區使用說明

	RDBMS 實例	ASM實例
/dev/dsk/c1t0d0s0	/u01/oracle
/dev/rdsk/c2t0d0s1		data01：數據文件,控制文件,聯機日志
/dev/rdsk/c2t1d0s1
/dev/rdsk/c2t2d0s1		data02：控制文件，recovery area
/dev/rdsk/c2t3d0s1

2.?RDBMS遷移到ASM

2.1備份RDBMS至data01

bash-3.00$ rman target /Recovery Manager: Release 10.2.0.2.0 - Production on Mon Apr 15 12:22:31 2013Copyright (c) 1982, 2005, Oracle. All rights reserved.connected to target database: SUN (DBID=1913551800)--控制文件自動備份關閉 RMAN> show all;RMAN configuration parameters are: CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default CONFIGURE BACKUP OPTIMIZATION OFF; # default CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default CONFIGURE CONTROLFILE AUTOBACKUP OFF; CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/u01/backup/ctl_%d_%F'; CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default CONFIGURE MAXSETSIZE TO UNLIMITED; # default CONFIGURE ENCRYPTION FOR DATABASE OFF; # default CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/oracle/dbs/snapcf_sun.f'; # defaultRMAN> --備份全庫 RMAN> backup as copy database format '+DATA01';Starting backup at 15-APR-13 using target database control file instead of recovery catalog allocated channel: ORA_DISK_1 ........ channel ORA_DISK_1: starting datafile copy --在全備情況下，即使自動備份關閉，控制文件，SPFILE也會被備份 copying current control file output filename=+DATA01/sun/controlfile/backup.266.812809561 tag=TAG20130415T122257 recid=83 stamp=812809563 channel ORA_DISK_1: datafile copy complete, elapsed time: 00:00:03 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 15-APR-13 channel ORA_DISK_1: finished piece 1 at 15-APR-13 piece handle=+DATA01/sun/backupset/2013_04_15/nnsnf0_tag20130415t122257_0.267.812809565 tag=TAG20130415T122257 comment=NONE channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02 Finished backup at 15-APR-13

2.2修改閃回目錄及大小

1 SQL> show parameter db_recovery_ 2 3 NAME TYPE VALUE 4 ------------------------------------ ----------- ------------------------------ 5 db_recovery_file_dest string /u01/flash_recovery_area 6 db_recovery_file_dest_size big integer 2G 7 SQL> alter system set db_recovery_file_dest='+DATA02' scope=spfile; 8 9 System altered. 10 11 SQL> alter system set db_recovery_file_dest_size=500M scope=spfile; 12 13 System altered. 14 15 SQL>

2.3修改聯機日志，自動創建數據文件目錄

1 SQL> show parameter db_create 2 3 NAME TYPE VALUE 4 ------------------------------------ ----------- ------------------------------ 5 db_create_file_dest string 6 db_create_online_log_dest_1 string 7 db_create_online_log_dest_2 string 8 db_create_online_log_dest_3 string 9 db_create_online_log_dest_4 string 10 db_create_online_log_dest_5 string 11 SQL> alter system set db_create_file_dest='+DATA01' scope=spfile; 12 13 System altered. 14 15 SQL> alter system set db_create_online_log_dest_1='+DATA01' scope=spfile; 16 17 System altered. 18 19 SQL>

2.4在每個聯機日志組中添加一個日志文件

1 SQL> alter database add logfile member '+DATA01' to group 1; 2 3 Database altered. 4 5 SQL> alter database add logfile member '+DATA01' to group 2; 6 7 Database altered. 8 9 SQL> alter database add logfile member '+DATA01' to group 3; 10 11 Database altered. 12 13 --查看結果 14 SQL> select group#,member from v$logfile order by 1; 15 16 GROUP# MEMBER 17 ---------- --------------------------------------------- 18 1 /u01/oradata/sunbak/redo01.log 19 1 +DATA01/sun/onlinelog/group_1.268.812811035 20 2 +DATA01/sun/onlinelog/group_2.269.812811077 21 2 /u01/oradata/sunbak/redo02.log 22 3 +DATA01/sun/onlinelog/group_3.270.812811139 23 3 /u01/oradata/sunbak/redo03.log 24 25 6 rows selected. 26 27 SQL> 28 29 4.5刪除原來的聯機日志 30 --聯機日志的狀態必須是INACTIVE時，刪除才能成功 31 --利用以下sql，將聯機日志狀態變為INACTIVE(v$log.status) 32 SQL> alter system switch logfile; 33 SQL> alter system checkpoint; 34 SQL> select GROUP#,STATUS from v$log; 35 36 GROUP# STATUS 37 ---------- ---------------- 38 1 INACTIVE 39 2 INACTIVE 40 3 CURRENT 41 42 SQL> alter database drop logfile member '/u01/oradata/sunbak/redo01.log'; 43 SQL> alter database drop logfile member '/u01/oradata/sunbak/redo02.log'; 44 SQL> alter database drop logfile member '/u01/oradata/sunbak/redo03.log';

2.5?遷移臨時表空間至ASM

1 查看當前臨時表空間配置 2 SQL> select ts#,bytes/1024/1024,name from v$tempfile; 3 4 TS# BYTES/1024/1024 NAME 5 ---------- --------------- ---------------------------------------- 6 3 20 /u01/oradata/sunbak/temp01.dbf 7 8 SQL> select ts#,name from v$tablespace where ts#=3; 9 10 TS# NAME 11 ---------- ---------------------------------------- 12 3 TEMP 13 SQL>

2.5.1 給臨時表空間添加文件

1 SQL> alter tablespace temp add tempfile '+DATA01' size 50M; 2 3 Tablespace altered. 4 5 SQL> select name from v$tempfile; 6 7 NAME 8 ---------------------------------------- 9 +DATA01/sun/tempfile/temp.271.812812791 10 /u01/oradata/sunbak/temp01.dbf 11 12 SQL>

3.把控制文件，數據文件遷移至ASM

3.1 記錄當前控制文件配置

1 SQL> show parameter control 2 3 NAME TYPE VALUE 4 ------------------------------------ ----------- ------------------------------ 5 control_file_record_keep_time integer 7 6 control_files string /u01/oradata/sunbak/control01. 7 ctl, /u01/oradata/sunbak/contr 8 ol02.ctl, /u01/oradata/sunbak/ 9 control03.ctl 10 SQL>

3.2 修改控制文件的目錄為'+DATA01','+DATA02'

1 SQL> alter system set control_files='+DATA01/sun/CONTROLFILE/control01','+DATA02/sun/CONTROLFILE/control02' scope=spfile; 2 3 System altered. 4 5 SQL>

3.3 關閉數據庫

1 SQL> shutdown immediate 2 Database closed. 3 Database dismounted. 4 ORACLE instance shut down. 5 SQL>

3.4?將數據庫起到nomount狀態

1 SQL> startup nomount 2 ORACLE instance started. 3 4 Total System Global Area 289406976 bytes 5 Fixed Size 1279820 bytes 6 Variable Size 109054132 bytes 7 Database Buffers 176160768 bytes 8 Redo Buffers 2912256 bytes 9 SQL>

3.5?恢復新的控制文件

1 bash-3.00$ rman target / 2 3 Recovery Manager: Release 10.2.0.2.0 - Production on Mon Apr 15 13:32:13 2013 4 5 Copyright (c) 1982, 2005, Oracle. All rights reserved. 6 7 connected to target database: sun (not mounted) 8 9 RMAN> restore controlfile from '/u01/oradata/sunbak/control01.ctl'; 10 11 Starting restore at 15-APR-13 12 using target database control file instead of recovery catalog 13 allocated channel: ORA_DISK_1 14 channel ORA_DISK_1: sid=156 devtype=DISK 15 16 channel ORA_DISK_1: copied control file copy 17 output filename=+DATA01/sun/controlfile/control01 18 output filename=+DATA02/sun/controlfile/control02 19 Finished restore at 15-APR-13 20 21 RMAN>

3.6?將數據庫啟到mount

1 RMAN> alter database mount; 2 3 database mounted 4 released channel: ORA_DISK_1 5 6 RMAN>

3.7?切換數據文件到拷貝數據文件

　　switch database to copy 文檔中給的解釋：Renames the datafiles and control files to use the filenames of image copies of these files. RMAN switches to the latest image copy of each file.After a database switch, RMAN considers the previous database files as datafile copies.

1 RMAN> switch database to copy; 2 3 datafile 1 switched to datafile copy "+DATA01/sun/datafile/system.265.812809377" 4 datafile 2 switched to datafile copy "+DATA01/sun/datafile/undotbs1.261.812809543" 5 datafile 3 switched to datafile copy "+DATA01/sun/datafile/sysaux.264.812809463" 6 datafile 4 switched to datafile copy "+DATA01/sun/datafile/users.262.812809557" 7 datafile 5 switched to datafile copy "+DATA01/sun/datafile/example.263.812809507" 8 datafile 6 switched to datafile copy "+DATA01/sun/datafile/sun01.260.812809551" 9 datafile 7 switched to datafile copy "+DATA01/sun/datafile/sun02.258.812809553" 10 datafile 8 switched to datafile copy "+DATA01/sun/datafile/sun03.257.812809557" 11 datafile 9 switched to datafile copy "+DATA01/sun/datafile/users.259.812809559" 12 datafile 10 switched to datafile copy "+DATA01/sun/datafile/users.256.812809561" 13 14 RMAN>

3.8?數據庫恢復：我是用備份做的遷移，恢復是必須的！

1 RMAN> recover database; 2 3 Starting recover at 15-APR-13 4 allocated channel: ORA_DISK_1 5 channel ORA_DISK_1: sid=156 devtype=DISK 6 7 starting media recovery 8 9 archive log thread 1 sequence 13 is already on disk as file /u01/admin/sun/arch/1_13_808092233.dbf 10 archive log thread 1 sequence 14 is already on disk as file /u01/admin/sun/arch/1_14_808092233.dbf 11 archive log thread 1 sequence 15 is already on disk as file /u01/admin/sun/arch/1_15_808092233.dbf 12 archive log thread 1 sequence 16 is already on disk as file /u01/admin/sun/arch/1_16_808092233.dbf 13 archive log thread 1 sequence 17 is already on disk as file /u01/admin/sun/arch/1_17_808092233.dbf 14 archive log thread 1 sequence 18 is already on disk as file /u01/admin/sun/arch/1_18_808092233.dbf 15 archive log thread 1 sequence 19 is already on disk as file /u01/admin/sun/arch/1_19_808092233.dbf 16 archive log thread 1 sequence 20 is already on disk as file /u01/admin/sun/arch/1_20_808092233.dbf 17 archive log thread 1 sequence 21 is already on disk as file /u01/admin/sun/arch/1_21_808092233.dbf 18 archive log thread 1 sequence 22 is already on disk as file /u01/admin/sun/arch/1_22_808092233.dbf 19 archive log filename=/u01/admin/sun/arch/1_13_808092233.dbf thread=1 sequence=13 20 archive log filename=/u01/admin/sun/arch/1_14_808092233.dbf thread=1 sequence=14 21 archive log filename=/u01/admin/sun/arch/1_15_808092233.dbf thread=1 sequence=15 22 archive log filename=/u01/admin/sun/arch/1_16_808092233.dbf thread=1 sequence=16 23 archive log filename=/u01/admin/sun/arch/1_17_808092233.dbf thread=1 sequence=17 24 archive log filename=/u01/admin/sun/arch/1_18_808092233.dbf thread=1 sequence=18 25 archive log filename=/u01/admin/sun/arch/1_19_808092233.dbf thread=1 sequence=19 26 archive log filename=/u01/admin/sun/arch/1_20_808092233.dbf thread=1 sequence=20 27 media recovery complete, elapsed time: 00:00:20 28 Finished recover at 15-APR-13 29 30 RMAN>

4.打開數據庫

1 RMAN> alter database open; 2 3 database opened 4 5 RMAN>

5.驗證

1 --控制文件 2 SQL> select name from v$controlfile; 3 4 NAME 5 -------------------------------------------------------------------------------- 6 +DATA01/sun/controlfile/control01 7 +DATA02/sun/controlfile/control02 8 9 SQL> 10 --數據文件 11 SQL> select name,status from v$datafile; 12 13 NAME STATUS 14 --------------------------------------------- ------- 15 +DATA01/sun/datafile/system.265.812809377 SYSTEM 16 +DATA01/sun/datafile/undotbs1.261.812809543 ONLINE 17 +DATA01/sun/datafile/sysaux.264.812809463 ONLINE 18 +DATA01/sun/datafile/users.262.812809557 ONLINE 19 +DATA01/sun/datafile/example.263.812809507 ONLINE 20 +DATA01/sun/datafile/sun01.260.812809551 ONLINE 21 +DATA01/sun/datafile/sun02.258.812809553 ONLINE 22 +DATA01/sun/datafile/sun03.257.812809557 ONLINE 23 +DATA01/sun/datafile/users.259.812809559 ONLINE 24 +DATA01/sun/datafile/users.256.812809561 ONLINE 25 26 10 rows selected. 27 28 SQL> 29 --臨時表空間 30 SQL> select name from v$tempfile; 31 32 NAME 33 --------------------------------------------- 34 +DATA01/sun/tempfile/temp.271.812812791 35 /u01/oradata/sunbak/temp01.dbf 36 37 SQL>

6.刪除多余文件

1 --刪除原來的聯機日志 2 --聯機日志的狀態必須是INACTIVE時，刪除才能成功 3 --利用以下sql，將聯機日志狀態變為INACTIVE(v$log.status) 4 SQL> alter system switch logfile; 5 SQL> alter system checkpoint; 6 SQL> select GROUP#,STATUS from v$log; 7 8 GROUP# STATUS 9 ---------- ---------------- 10 1 INACTIVE 11 2 INACTIVE 12 3 CURRENT 13 14 SQL> alter database drop logfile member '/u01/oradata/sunbak/redo01.log'; 15 SQL> alter database drop logfile member '/u01/oradata/sunbak/redo02.log'; 16 SQL> alter database drop logfile member '/u01/oradata/sunbak/redo03.log'; 17 18 --刪除臨時文件 19 20 SQL> alter database tempfile '/u01/oradata/sunbak/temp01.dbf' drop; 21 22 Database altered. 23 24 SQL>

?　　至此，遷移完成。本實驗主要參考：《大話 oracle rac》?

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