环境
迁移准备
- 开启数据库归档模式
检查数据库是否已经开启归档模式
SQL>select log_mode from v$database;
LOG_MODE
------------
ARCHIVELOG
（如果为非归档模式需要开启归档模式）
- 在源库中创建backup表并插入一条数据，以便确认迁移是否成功
SQL>create table backup(id number,name varchar2(100));
Tablecreated.
SQL>insert into backup values(1,‘Bianca‘);
1row created.
SQL>commit;
Commit complete.
- 使用nocatalog模式进行完全备份
- u 源端创建rman备份集目录
[[email protected] ~]$ mkdir/u01/app/backup
- nocatalog模式连接数据库 (记录dbid）
[[email protected]~]$ rman target / nocatalog
RecoveryManager: Release 11.2.0.4.0 - Production on Thu Apr 2 10:14:17 2015
Copyright(c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connectedto target database: YAYI (DBID=501826307)
using target databasecontrol file instead of recovery catalog
- 修改参数
RMAN> show all
CONFIGURE RETENTION POLICY TOREDUNDANCY 2;
CONFIGURE CONTROLFILEAUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FORDEVICE TYPE DISK TO
2> ‘/u01/app/backup/%F‘;
- 完全备份数据库
RMAN> backup databaseformat ‘/u01/app/backup/full_%d_%T_%s_P.bak‘;
RMAN> backup archivelogall format ‘/u01/app/backup/arch_%d_%T_%s_%p.bak‘ DELETE INPUT;
- 备份后检查信息
RMAN> list backup summary;
List of Backups
===============
Key TY LV S Device Type Completion Time#Pieces #Copies Compressed Tag
------- -- -- - -------------------------- ------- ------- ---------- ---
1 B F A DISK 31-MAR-15 1 1 NO
TAG20150331T164644
2 B F A DISK 31-MAR-15 1 1 NO
TAG20150331T164901
3 B F A DISK 02-APR-15 1 1 NO
TAG20150402T102243
4 B F A DISK 02-APR-15 1 1 NO
TAG20150402T102705
5 B A A DISK 02-APR-15 1 1 NO
TAG20150402T105917
6 B F ADISK 02-APR-15 1 1 NO
TAG20150402T105927
rac环境中进行数据恢复
- 将备份集传到rac环境中
[[email protected]~]$ mkdir /u01/app/backup
[[email protected]]$ cd backup/
[[email protected] backup]$ scp *[email protected]:/u01/app/backup/
[email protected]‘spassword:
arch_YAYI_20150402_6_1.bak 100% 86MB 3.4MB/s 00:25
c-501826307-20150402-00 100% 9600KB 9.4MB/s 00:01
full_YAYI_20150402_4_P.bak 100% 1038MB 2.6MB/s 06:35
- 还原并修改初始化文件
还原spfile
[[email protected]~]$ rman target /
RecoveryManager: Release 11.2.0.4.0 - Production on Thu Apr 2 10:48:02 2015
Copyright(c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connectedto target database (not started)
RMAN>startup nomount;
startupfailed: ORA-01078: failure in processing system parameters
LRM-00109:could not open parameter file
‘/u01/app/oracle/product/11.2.0/db_1/dbs/inityayi1.ora‘
startingOracle instance without parameter file for retrieval of spfile
Oracleinstance started
TotalSystem Global Area 1068937216 bytes
FixedSize 2260088 bytes
VariableSize 281019272 bytes
DatabaseBuffers 780140544 bytes
RedoBuffers 5517312 bytes
RMAN>restore spfile to ‘/u01/app/oracle/product/11.2.0/db_1/dbs/spfileyayi1.ora‘from ‘/u01/app/backup/c-501826307-20150402-01‘;
查看asm实例中相关参数
[[email protected]~]$ export ORACLE_SID=+ASM1
[[email protected]~]$ sqlplus / as sysdba
SQL*Plus:Release 11.2.0.4.0 Production on Thu Apr 2 14:21:48 2015
Copyright(c) 1982, 2013, Oracle. All rightsreserved.
Connectedto:
OracleDatabase 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
Withthe Real Application Clusters and Automatic Storage Management options
SQL>select state,redundancy,total_mb,free_mb,name,failgroup from v$asm_disk;
STATE REDUNDANCY TOTAL_MB FREE_MB NAME
FAILGROUP
------------------------------- ---------- ---------- --------------- --------------------
NORMAL UNKNOWN 20473 20077 GRID_0000
GRID_0000
SQL>select group_number,name,state,total_mb,free_mb from v$asm_diskgroup;
GROUP_NUMBERNAME STATE TOTAL_MB FREE_MB
--------------------------- ---------- ---------- ----------
1 GRID MOUNTED 20473 20077
使用asmcmd 命令
[[email protected]~]$ asmcmd
ASMCMD>ls
GRID/
ASMCMD>cd GRID
ASMCMD>ls
rac-cluster/
ASMCMD>
创建pfile 修改相关参数
SQL>create pfile from spfile=‘/u01/app/oracle/product/11.2.0/db_1/dbs/spfileyayi1.ora‘;
Filecreated.
yayi2.__db_cache_size=381681664
yayi1.__db_cache_size=398458880
yayi2.__java_pool_size=4194304
yayi1.__java_pool_size=4194304
yayi2.__large_pool_size=8388608
yayi1.__large_pool_size=8388608
yayi1.__oracle_base=‘/u01/app/oracle‘#ORACLE_BASEset from environment
yayi2.__oracle_base=‘/u01/app/oracle‘#ORACLE_BASEset from environment
yayi2.__pga_aggregate_target=209715200
yayi1.__pga_aggregate_target=209715200
yayi2.__sga_target=633339904
yayi1.__sga_target=633339904
yayi2.__shared_io_pool_size=0
yayi1.__shared_io_pool_size=0
yayi2.__shared_pool_size=226492416
yayi1.__shared_pool_size=209715200
yayi2.__streams_pool_size=0
yayi1.__streams_pool_size=0
*.audit_file_dest=‘/u01/app/oracle/admin/yayi/adump‘
*.audit_trail=‘db‘
*.cluster_database=true
*.compatible=‘11.2.0.4.0‘
*.control_files=‘GRID/yayi/controlfile/current.287.875093245‘
*.db_block_size=8192
*.db_create_file_dest=‘GRID‘
*.db_domain=‘‘
*.db_name=‘yayi‘
*.diagnostic_dest=‘/u01/app/oracle‘
*.dispatchers=‘(PROTOCOL=TCP)(SERVICE=yayiXDB)‘
*.fal_client=‘yayi‘
*.fal_server=‘DB11G‘
yayi1.instance_number=1
yayi2.instance_number=2
*.log_archive_dest_1=‘LOCATION=+ARCHDISKVALID_FOR=(ALL_LOGFILES,ALL_ROLES) DB_UNIQUE_NAME=yayi‘
*.log_archive_dest_2=‘SERVICE=db11gASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=db11g‘
*.log_archive_format=‘%t_%s_%r.dbf‘
*.pga_aggregate_target=209715200
*.processes=300
*.remote_listener=‘scan:1521‘
*.remote_login_passwordfile=‘exclusive‘
*.sga_target=631242752
*.standby_file_management=‘AUTO‘
yayi2.thread=2
yayi1.thread=1
yayi2.undo_tablespace=‘UNDOTBS2‘
yayi1.undo_tablespace=‘UNDOTBS1‘
恢复数据库
创建spfile到共享存储下
SQL> createspfile=‘+GRID/yayi/spfileyayi.ora‘ frompfile=‘/u01/app/oracle/product/11.2.0/db_1/dbs/inityayi1.ora‘;
File created.
修改pfile指向spfile
SPFILE=‘+GRID/yayi/spfileyayi.ora‘
并创建审计文件文件夹
启动到nomount状态
startupnomount
恢复控制文件
RMAN>restore controlfile from ‘/u01/app/backup/c-501826307-20150402-01‘;
启动到mount状态
alter databasemount；
恢复数据文件
（需要先在制定目录下创建oradata目录）
RMAN>restore database;
RMAN>recoverdatabase;
以resetlogs机制打开数据库
alter databaseopen resetlogs；
- 3. 检测
查询之前插入的数据，确认迁移成功
SQL> select * from backup;
SQL> select* from backup;
ID NAME
----------------------------------------
1 Bianca
本文为第一次迁移时生成的文档，可能还有很多不太完善或者不太准确的地方，以后逐步完善，也请各位大神多提意见，帮助改正，谢谢