? 本實驗主要介紹將數(shù)據(jù)庫遷移到ASM的過程，并不介紹ASM實例的搭建。實驗環(huán)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(qū)使用說明

	RDBMS 實例	ASM實例
/dev/dsk/c1t0d0s0	/u01/oracle
/dev/rdsk/c2t0d0s1		data01：數(shù)據(jù)文件,控制文件,聯(lián)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(guān)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(guān)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(lián)機日志，自動創(chuàng)建數(shù)據(jù)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(lián)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(jié)果 14 SQL> select group#,member from v$logfile order by 1; 15 16 GROUP# MEMBER 17 ---------- --------------------------------------------- 18 1 /u01/oradata/sunbak/redo01.log 19 1 +DATA01/sun/onlinelog/group_1.268.812811035 20 2 +DATA01/sun/onlinelog/group_2.269.812811077 21 2 /u01/oradata/sunbak/redo02.log 22 3 +DATA01/sun/onlinelog/group_3.270.812811139 23 3 /u01/oradata/sunbak/redo03.log 24 25 6 rows selected. 26 27 SQL> 28 29 4.5刪除原來的聯(lián)機日志 30 --聯(lián)機日志的狀態(tài)必須是INACTIVE時，刪除才能成功 31 --利用以下sql，將聯(lián)機日志狀態(tài)變?yōu)镮NACTIVE(v$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(shù)據(jù)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(guān)閉數(shù)據(jù)庫

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

3.4?將數(shù)據(jù)庫起到nomount狀態(tài)

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(shù)據(jù)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(shù)據(jù)文件到拷貝數(shù)據(jù)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(shù)據(jù)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(shù)據(jù)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$controlfile; 3 4 NAME 5 -------------------------------------------------------------------------------- 6 +DATA01/sun/controlfile/control01 7 +DATA02/sun/controlfile/control02 8 9 SQL> 10 --數(shù)據(jù)文件 11 SQL> select name,status from v$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(lián)機日志 2 --聯(lián)機日志的狀態(tài)必須是INACTIVE時，刪除才能成功 3 --利用以下sql，將聯(lián)機日志狀態(tài)變?yōu)镮NACTIVE(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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