RMAN基于SCN或特定时间点的不完全恢复

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前提：

数据库已开启归档：

SQL> archive log list Database log mode           Archive Mode Automatic archival            Enabled Archive destination           /u01/app/oracle/product/11.2.0/db_1/dbs/arch Oldest online log sequence     23 Next log sequence to archive   25 Current log sequence        25 SQL>

一、         RMAN备份脚本

Level0备份脚本

vim rman_bak_level0.sh  #! /bin/bash  export ORACLE_BASE=$ORACEL_BASE export ORACLE_HOME=$ORACLE_HOME  export PATH=$ORACLE_HOME/bin:$PATH  export ORACLE_SID=orcl  export NLS_  rman target / <<EOF  run{  allocate channel c1 type disk;  allocate channel c2 type disk;  backup incremental level 0 database format '/u01/backup/level0_%d_%s_%p_%u.bak';  sql 'alter system archive log current';  backup archivelog all delete input format '/u01/backup/archivelog_%d_%s_%p_%u.bak';  crosscheck backup;  delete noprompt obsolete;  release channel c1;  release channel c2;  }  >>EOF

Level1备份脚本

vim rman_bak_level1.sh   #! /bin/bash  export ORACLE_BASE=$ORACLE_BASE  export ORACLE_HOME=$ORACLE_HOME  export PATH=$ORACLE_HOME/bin:$PATH  export ORACLE_SID=orcl export NLS_  rman target / <<EOF  run{  allocate channel c1 type disk;  allocate channel c2 type disk;  backup incremental level 1 database format '/u01/backup/level1_%d_%s_%p_%u.bak';  sql 'alter system archive log current';  backup archivelog all delete input format '/u01/backup/archivelog_%d_%s_%p_%u.bak';  crosscheck backup;  delete noprompt obsolete;  release channel c1;  release channel c2;  }  >>EOF

Level2备份脚本

vim rman_bak_level2.sh  #! /bin/bash  export ORACLE_SID=orcl  export NLS_  $ORACLE_HOME/bin/rman target / <<EOF  run{  allocate channel c1 type disk;  allocate channel c2 type disk;  backup incremental level 2 database format '/u01/backup/level2_%d_%s_%p_%u.bak';  sql 'alter system archive log current';  backup archivelog all delete input format '/u01/backup/archivelog_%d_%s_%p_%u.bak';  crosscheck backup;  delete noprompt obsolete;  release channel c1;  release channel c2;  }  >>EOF

二、备份数据库测试

1.执行0级备份

  [[email protected] scripts]$ ll

total 12

-rwxr--r-- 1 oracle oinstall 600 Oct 18 12:46 rman_bak_level0.sh

-rwxr--r-- 1 oracle oinstall 600 Oct 18 12:46 rman_bak_level1.sh

-rwxr--r-- 1 oracle oinstall 532 Oct 18 12:46 rman_bak_level2.sh

[[email protected] scripts]$

 [[email protected] scripts]$ sh rman_bak_level0.sh

   查看备份日志，成功备份

2.创建表level0

SQL> create table level0 as select * from scott.emp;

Table created.

3.执行1级增量备份

[[email protected] scripts]$ date

Wed Oct 18 12:58:19 CST 2017

[[email protected] scripts]$ sh rman_bak_level1.sh

查看备份日志，成功备份

4.创建表level1

SQL> create table level1 as select * from scott.dept;

Table created.

SQL> !date

Wed Oct 18 13:01:15 CST 2017

5.执行2级增量备份

[[email protected] scripts]$ sh rman_bak_level2.sh

查看备份日志，成功备份

点击有惊喜