oracle 备份恢复篇(二)---rman 增备恢复--不完全恢复

一,环境准备

　　　全备脚本:

export TMP=/tmp
export TMPDIR=$TMP
export ORACLE_BASE=/u01
export ORACLE_SID=prod
export ORACLE_HOME=/u01/oracle/db_1
export ORACLE_TERM=xterm
export PATH=$PATH:$ORACLE_HOME/bin:$HOME/bin
export  LANG=en_US
rman target / log /u01/backup/rman_full.log append<<EOF
run
{allocate channel c1 type disk;
allocate channel c2 type disk;
backup database filesperset 4 format '/u01/backup/full_%d_%T_%s_%p';
sql 'alter system archive log current';
sql 'alter system archive log current';
sql 'alter system archive log current';
backup archivelog all format '/u01/backup/arch_%d_%T_%s_%p' delete input;
backup current controlfile format '/u01/backup/ctl_%d_%T_%s_%p';
crosscheck backup;
crosscheck archivelog all;
delete noprompt obsolete;
delete noprompt  expired backup;
delete noprompt  expired archivelog all;
}
EOF

　　　增备脚本:

export TMP=/tmp
export TMPDIR=$TMP
export ORACLE_BASE=/u01
export ORACLE_SID=prod
export ORACLE_HOME=/u01/oracle/db_1
export ORACLE_TERM=xterm
export PATH=$PATH:$ORACLE_HOME/bin:$HOME/bin
export  LANG=en_US
rman target / log /u01/backup/rman_full.log append<<EOF
run
{allocate channel c1 type disk;
allocate channel c2 type disk;
sql 'alter system archive log current';
sql 'alter system archive log current';
sql 'alter system archive log current';
backup archivelog all format '/u01/backup/arch_%d_%T_%s_%p' delete input;
backup current controlfile format '/u01/backup/ctl_%d_%T_%s_%p';
crosscheck backup;
crosscheck archivelog all;
delete noprompt  expired backup;
delete  noprompt expired archivelog all;
}
EOF

　　　实际环境..周日全备,其他增备

　　　周日全备数据:

　　　运行全备脚本.........

　　　周一增备:

　　　这天的数据写入特别多........

　　　create table test as select * from tab;

　　　create table a as select * from dba_users;　

　　　create table scott.emp1 as select * from scott.emp where rownum < 3;

　　　select * from scott.emp1;
　　　.....未完待续
不停的写.....写......写.....

晚上增备了

sh 增备脚本.sh

　　　　数据故障模拟:

　　　　　　又一次删除:

二,故障发现于处理

　　第一步: 首先准备

　　　进入数据库....

　　　关闭数据库:>>>>　shutdown abort

　　　 启动到nomount状态

　　　 进入备份目录查看最新的备份

　　　 进入rman >>> rman target /

　　第二步: 恢复控制文件,启动到数据库mount状态

　　　　　restore controlfile from '/u01/backup/ctl_PROD_20190301_724_1';

　　第三步: 　

　　　找到最新的归档集并注册

RMAN> list backup;
......

RMAN> catalog backuppiece '/u01/backup/arch_PROD_20190301_719_1';
RMAN> catalog backuppiece '/u01/backup/arch_PROD_20190301_721_1';
RMAN> catalog backuppiece '/u01/backup/arch_PROD_20190301_722_1';
RMAN> catalog backuppiece '/u01/backup/arch_PROD_20190301_723_1';

　　第四步:

　　　恢复数据

　　第五步:

　　　　恢复归档数据

　RMAN> recover database;

　　第六步:

　　　　打开数据库到resetlogs模式(重置redo)

RMAN> alter database open resetlogs;

　　第七步:

　　　　重新备份数据