有个童鞋问rman的自动备份脚本程序,我之前有写过exp备份指定方案自动备份案例(Linux平台下的Oracle自动备份案例(使用exp工具)
有个童鞋问rman的自动备份脚本程序,我之前有写过exp备份指定方案自动备份案例(Linux平台下的Oracle自动备份案例(使用exp工具) ),现在补充下rman的案例。
为此写出下文,仅以记录并分享这个过程。
环境:
操作系统:RHEL5.4
数据库:Oracle 10.2.0
相关变量值:
ORACLE_BASE=/u01/app/oracle
ORACLE_HOME=/u01/app/oracle/product/10.2.0/db_1
备份的数据库实例名:test
备份的目标目录:/backup_rman
实现过程如下:
第一步:准备目录
mkdir /backup_rman
chown oracle:oinstall /backup_rman
chmod 755 /backup_rman
第二步:备份脚本程序的编写
1、创建备份脚本
切换到oracle用户,在oracle家目录下面创建bin目录,新建文件rman_backup.sh
mkdir bin
cd bin
touch rman_backup.sh
chmod 755 rman_backup.sh
编辑rman_backup.sh文件,添加如下内容:
#!/bin/bash
source /home/oracle/.bash_profile
/u01/app/oracle/product/10.2.0/db_1/bin/rman target / nocatalog cmdfile=/home/oracle/bin/rman_cmd log=/backup_rman/rman_full_`date +%Y%m%d%H%M`.log
2、创建rman的备份脚本文件
cd ~/bin
touch rman_cmd
编辑rman_cmd文件添加如下内容(根据需要,可以进行适当的修改):
crosscheck archivelog all;
delete noprompt expired archivelog all;
run {
configure retention policy to recovery window of 4 days;
configure controlfile autobackup off;
allocate channel c1 device type disk format '/backup_rman/rman_full_%T_%U' maxpiecesize=3G;
allocate channel c2 device type disk format '/backup_rman/rman_full_%T_%U' maxpiecesize=3G;
allocate channel c3 device type disk format '/backup_rman/rman_full_%T_%U' maxpiecesize=3G;
backup database plus archivelog delete all input;
backup current controlfile format '/backup_rman/rman_%T_CTL_%U';
backup spfile format '/backup_rman/rman_%T_SPFILE_%U';
release channel c1;
release channel c2;
release channel c3;
}
crosscheck backupset;
delete noprompt expired backup;
delete noprompt obsolete;
crosscheck archivelog all;
delete noprompt expired archivelog all;
第三步:添加crontab计划任务
使用oracle用户添加例行任务:
crontab -e
新打开的窗口中添加一下内容:
0 24 * * * /home/oracle/bin/rman_backup.sh
(*/3 * * * * /home/oracle/bin/rman_backup.sh)
注,,括号内的可以是做测试的时候用的,每三分钟执行一次备份,例为每天凌晨24点执行备份
第四步:执行验证:
1、crontab成功执行验证:
在root下执行tail -f /var/log/cron,监控cron日志来确保crontab的成功执行:
Aug 31 00:20:06 model crontab[6380]: (oracle) BEGIN EDIT (oracle)
Aug 31 00:20:48 model crontab[6380]: (oracle) REPLACE (oracle)
Aug 31 00:20:48 model crontab[6380]: (oracle) END EDIT (oracle)
Aug 31 00:21:01 model crond[26958]: (oracle) RELOAD (cron/oracle)
Aug 31 00:21:01 model crond[6412]: (oracle) CMD (/home/oracle/bin/rman_backup.sh)
Aug 31 00:24:01 model crond[6621]: (oracle) CMD (/home/oracle/bin/rman_backup.sh)
2、查看rman是否执行,并且执行成功
a.可在rman执行的时候执行ps -ef | grep rman | grep -v grep来查看rman进程是否成功启动
b.查看/backup_rman目录中是否有备份生成的文件:
$ oracle@model /backup_rman> ls
rman_20120831_CTL_0mnjvu15_1_1 rman_full_20120831_0injvtrq_1_1
rman_20120831_CTL_0vnjvu57_1_1 rman_full_20120831_0jnjvtvs_1_1
rman_20120831_SPFILE_0nnjvu18_1_1 rman_full_20120831_0knjvu0c_1_1
rman_20120831_SPFILE_10njvu5a_1_1 rman_full_20120831_0lnjvu13_1_1
rman_full_201208310021.log rman_full_20120831_0onjvu1a_1_1
rman_full_201208310024.log rman_full_20120831_0pnjvu1e_1_1
rman_full_20120831_0dnjvtrg_1_1 rman_full_20120831_0qnjvu1e_1_1
rman_full_20120831_0enjvtrg_1_1 rman_full_20120831_0rnjvu1i_1_1
rman_full_20120831_0fnjvtrg_1_1 rman_full_20120831_0snjvu4s_1_1
rman_full_20120831_0gnjvtrp_1_1 rman_full_20120831_0tnjvu52_1_1
rman_full_20120831_0hnjvtrp_1_1 rman_full_20120831_0unjvu55_1_1
验证结果:rman自动备份任务执行成功!
推荐阅读:
Oracle基础教程之通过RMAN复制数据库
RMAN备份策略制定参考内容
RMAN备份学习笔记
Oracle数据库备份加密 RMAN加密

MySQLviewshavelimitations:1)Theydon'tsupportallSQLoperations,restrictingdatamanipulationthroughviewswithjoinsorsubqueries.2)Theycanimpactperformance,especiallywithcomplexqueriesorlargedatasets.3)Viewsdon'tstoredata,potentiallyleadingtooutdatedinforma

ProperusermanagementinMySQLiscrucialforenhancingsecurityandensuringefficientdatabaseoperation.1)UseCREATEUSERtoaddusers,specifyingconnectionsourcewith@'localhost'or@'%'.2)GrantspecificprivilegeswithGRANT,usingleastprivilegeprincipletominimizerisks.3)

MySQLdoesn'timposeahardlimitontriggers,butpracticalfactorsdeterminetheireffectiveuse:1)Serverconfigurationimpactstriggermanagement;2)Complextriggersincreasesystemload;3)Largertablesslowtriggerperformance;4)Highconcurrencycancausetriggercontention;5)M

Yes,it'ssafetostoreBLOBdatainMySQL,butconsiderthesefactors:1)StorageSpace:BLOBscanconsumesignificantspace,potentiallyincreasingcostsandslowingperformance.2)Performance:LargerrowsizesduetoBLOBsmayslowdownqueries.3)BackupandRecovery:Theseprocessescanbe

Adding MySQL users through the PHP web interface can use MySQLi extensions. The steps are as follows: 1. Connect to the MySQL database and use the MySQLi extension. 2. Create a user, use the CREATEUSER statement, and use the PASSWORD() function to encrypt the password. 3. Prevent SQL injection and use the mysqli_real_escape_string() function to process user input. 4. Assign permissions to new users and use the GRANT statement.

MySQL'sBLOBissuitableforstoringbinarydatawithinarelationaldatabase,whileNoSQLoptionslikeMongoDB,Redis,andCassandraofferflexible,scalablesolutionsforunstructureddata.BLOBissimplerbutcanslowdownperformancewithlargedata;NoSQLprovidesbetterscalabilityand

ToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith

ToavoidcommonmistakeswithstringdatatypesinMySQL,understandstringtypenuances,choosetherighttype,andmanageencodingandcollationsettingseffectively.1)UseCHARforfixed-lengthstrings,VARCHARforvariable-length,andTEXT/BLOBforlargerdata.2)Setcorrectcharacters


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Safe Exam Browser
Safe Exam Browser is a secure browser environment for taking online exams securely. This software turns any computer into a secure workstation. It controls access to any utility and prevents students from using unauthorized resources.

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft

MantisBT
Mantis is an easy-to-deploy web-based defect tracking tool designed to aid in product defect tracking. It requires PHP, MySQL and a web server. Check out our demo and hosting services.

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
