title: Oracle开启归档模式并设置RMAN自动备份策略

categories: 数据库

tags:

- Oracle

- RMAN

timezone: Asia/Shanghai

date: 2019-01-06

软件版本

Oracle 11g 11.2.0.4

1.开启和关闭归档模式

1.管理员登录

sqlplus / as sysdba

2.查看是否开启归档模式

SQL> archive log list;

Database log mode No Archive Mode

Automatic archival Disabled

Archive destination USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence 2

Current log sequence 4

3.关闭数据库

SQL> shutdown immediate;

Database closed.

Database dismounted.

ORACLE instance shut down.

4.启动数据库到mount状态

SQL> startup mount;

ORACLE instance started.

Total System Global Area 759943168 bytes

Fixed Size 2257112 bytes

Variable Size 499126056 bytes

Database Buffers 255852544 bytes

Redo Buffers 2707456 bytes

Database mounted.

5.启用归档模式并查看

SQL> alter database archivelog;

Database altered.

SQL> archive log list;

Database log mode Archive Mode

Automatic archival Enabled

Archive destination USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence 2

Next log sequence to archive 4

Current log sequence 4

6.启动数据库

SQL> alter database open;

Database altered.

7.关闭归档模式

# 关闭数据库

SQL> shutdown immediate;

Database closed.

Database dismounted.

ORACLE instance shut down.

# 启动数据库到mount状态

SQL> startup mount;

ORACLE instance started.

Total System Global Area 759943168 bytes

Fixed Size 2257112 bytes

Variable Size 499126056 bytes

Database Buffers 255852544 bytes

Redo Buffers 2707456 bytes

alter database noarchivelog;Database mounted.

# 关闭归档模式

SQL> alter database noarchivelog;

Database altered.

# 查看状态

SQL> archive log list;

Database log mode No Archive Mode

Automatic archival Disabled

Archive destination USE_DB_RECOVERY_FILE_DEST

Oldest online log sequence 2

Current log sequence 4

2.RMAN自动全备脚本

#!/bin/bash

backtime=`date +%Y%m%d`

echo $backtime

# by 小六 20181126 1327133225@qq.com

# ######################### oracle RAC RMAN自动备份脚本 #########################

# 备份要求

# 条件一：在node1每晚进行全量备份，同时删除过期备份和归档日志文件；

# by all

# su - oracle

# mkdir -p /home/oracle/log

# mkdir -p /home/oracle/bak

#

# %c 备份片的拷贝数

# %d 数据库名称

# %D 位于该月中的第几天 (DD)

# %M 位于该年中的第几月 (MM)

# %F 一个基于DBID唯一的名称,这个格式的形式为c-IIIIIIIIII-YYYYMMDD-QQ,其中IIIIIIIIII为该数据库的DBID，YYYYMMDD为日期，QQ是一个1-256的

序列

# %n 数据库名称，向右填补到最大八个字符

# %u 一个八个字符的名称代表备份集与创建时间

# %p 该备份集中的备份片号，从1开始到创建的文件数

# %U 一个唯一的文件名，代表%u_%p_%c

# %s 备份集的号

# %t 备份集时间戳

# %T 年月日格式(YYYYMMDD)

$ORACLE_HOME/bin/rman log=/home/oracle/log/node1_backupall_$backtime.log <

connect target /

run{

CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1;

CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1;

allocate channel c1 type disk FORMAT '/home/oracle/bak/%d_%T_%U';

allocate channel c2 type disk FORMAT '/home/oracle/bak/%d_%T_%U';

backup as compressed backupset database ;

backup as compressed backupset archivelog all delete input;

# report obsolete命令用于列出rman资料库中能够被删除的全备份、数据文件拷贝和归档日志记录。

# report obsolete;

# 删除陈旧备份(noprompt=不提示)

# delete noprompt obsolete;

# 核对所有备份集

crosscheck backup;

# 核对归档日志

crosscheck archivelog all;

# 删除EXPIRED备份集(noprompt=不提示)

# delete noprompt expired backup;

# 释放通道

release channel c1;

release channel c2;

}

EOF

echo

echo "Backup Complete!"

echo