Oracle之RMAN备份异机恢复（单机到单机）

一、环境说明

	系统版本	主机名	DB版本	DB名	实例名	Public-IP
正式库	Redhat9.5	lemon	Enterprise 19.25	lemon	lemon	192.168.118.10
测试库	Redhat9.5	lemon1	Enterprise 19.25	lemon	lemon	192.168.118.11

二、正式库进行RMAN备份

RMAN全备脚本

cat /home/oracle/scripts/rman_full.sh
#!/bin/bash
source ~/.bash_profile
TODAY=`date +%Y-%m-%d`
rman target / nocatalog <<EOF
spool log to '/home/oracle/scripts/logs/$TODAY.full_backup.log';
run{
allocate channel c1 device type disk;
backup as compressed backupset filesperset 2 database  format '/backup/level0_%d_%t_%s_%p' tag 'L0';
sql 'alter system archive log current';
backup as compressed backupset archivelog  all format '/backup/arc_%t_%s'; 
backup current controlfile format '/backup/cntrl_%s_%p_%s';
release channel c1;
}
crosscheck backup;
crosscheck archivelog all;
delete noprompt expired backup;
delete noprompt obsolete;
EOF

执行备份脚本

sh /home/oracle/scripts/rman_full.sh

查看备份log

备份正常，查看备份文件

正式库生成参数文件

三、将正式库备份与参数文件拷贝到测试库

scp命令传输

传输备份文件：

传输参数文件

测试库文件检查

检查备份文件

检查参数文件

四、测试库异机恢复

编辑参数文件

创建spfile，将数据库启动到nomount状态

create spfile from pfile='/home/oracle/pfile/ora';
startup nomount;

恢复控制文件，将数据库启动到mount状态

restore controlfile from '/backup/cntrl_19_1_19';

注册备份集

catalog start with '/backup/';

#crosscheck核对数据文件备份集：
crosscheck backup;

restore database

run{
 allocate channel t1 type disk;
 allocate channel t2 type disk;
 restore database;
 switch datafile all;
 release channel t2;
 release channel t1;
}

recover database

recover database;

开启数据库

alter database open resetlogs;

检查数据库

select name,open_mode from v$database;
select file_name from dba_temp_files;
select member from v$logfile;
show parameter name

五、验证数据