中小型数据库 RMAN CATALOG 备份恢复方案
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中小型数据库呈现的是数据库并发少,数据库容量小,版本功能受限以及N多单实例等特点。尽管如此,数据库的损失程度也会存在零丢失的情形。企业不愿意花太多的钱又要保证数据库的可靠稳定,可是苦煞了我这些搞DB的。接上一篇文章,中小型数据库 RMAN CATALOG 备份恢复方案(一),我们继续来给出基于中小型数据库的恢复的脚本与其部署。
1、RMAN还原shell脚本
- --下面的shell脚本用于实现数据库的自动还原,还原成功后,数据库被关闭。因为我们在Prod数据库无异常的情形下,不需要bak 的备用库open
- --shell脚本做还原时调用了catalog中的全局脚本global_restore
- --在脚本最尾部,我们将DB还原是否成功的状态输出到日志文件db_restore_rman.log,这样做的好处是我们可以将多个DB的还原状态集中,便于查看
- $ more db_restore_rman_catalog.sh
- ##====================================================================
- ## File name: db_restore_rman_catalog.sh
- ## Usage: db_restore_rman_catalog.sh <$ORACLE_SID>
- ## Desc:
- ## The script uses to restore database with level 0 backupset.
- ## Author: Robinson
- ## Blog : http://blog.csdn.net/robinson_0612
- ##====================================================================
- #!/bin/bash
- # --------------------
- # Define variable
- # --------------------
- if [ -f ~/.bash_profile ]; then
- . ~/.bash_profile
- fi
- # --------------------------
- # Check SID
- # --------------------------
- if [ -z "${1}" ];then
- echo "Usage: "
- echo " `basename $0` ORACLE_SID"
- exit 1
- fi
- ORACLE_SID=${1}; export ORACLE_SID
- LOG_DIR=/u02/database/${ORACLE_SID}/backup; export RMAN_DIR
- TIMESTAMP=`date +%Y%m%d%H%M` export TIMESTAMP
- RMAN_LOG=${LOG_DIR}/${ORACLE_SID}_restore_${TIMESTAMP}.log; export RMAN_LOG
- SSH_LOG=${LOG_DIR}/${ORACLE_SID}_restore_full_${TIMESTAMP}.log; export SSH_LOG
- RETENTION=5
- echo "----------------------------------------------------------------" >>${SSH_LOG}
- echo "Start rman to backup at `date`." >>${SSH_LOG}
- echo "----------------------------------------------------------------" >>${SSH_LOG}
- $ORACLE_HOME/bin/rman target / catalog rman_user/[email protected] log=${RMAN_LOG} <<EOF
- startup nomount;
- run{execute global script global_restore;}
- exit;
- EOF
- RV=$?
- cat ${RMAN_LOG}>>${SSH_LOG}
- echo "" >>${SSH_LOG}
- echo "----------------------------------------------------------------" >>${SSH_LOG}
- echo "MSG1: RMAN restore end at `date`." >>${SSH_LOG}
- echo "----------------------------------------------------------------" >>${SSH_LOG}
- if [ $RV -ne "0" ]; then
- echo "----------------------------------------------------------------" >>${SSH_LOG}
- echo "MSG2: RMAN restore error at `date`." >>${SSH_LOG}
- echo "----------------------------------------------------------------" >>${SSH_LOG}
- RMAN_STAT=‘FAILED‘
- mail -s "Failed RMAN restore for $ORACLE_SID on `hostname`." [email protected]12306.com <${SSH_LOG}
- else
- echo "----------------------------------------------------------------" >>${SSH_LOG}
- echo "MSG2: No error found for RMAN restore at `date`." >>${SSH_LOG}
- echo "----------------------------------------------------------------" >>${SSH_LOG}
- RMAN_STAT=‘SUCCEED‘
- rm -rf ${RMAN_LOG} 2>/dev/null
- fi
- echo "`date ‘+%F %X‘` -- $0 $1 $RMAN_STAT ">> /u01/comm_scripts/db_restore_rman.log
- exit
2、检测还原状态shell脚本
- --我们用一个shell脚本来检测多个DB当天最终的还原状态成功与否,并将当前的所有记录输出到ck_restore.log日志
- --脚本尾部发送邮件列出当天所有进行restore之后的所有状态,是一个多个DB restore 的summary report.
- $ more ck_restore.sh
- ##====================================================================
- ## File name: ck_restore.sh
- ## Usage: ck_restore.sh
- ## Desc:
- ## The script uses to check RMAN restore log for current day
- ## and send mail to DBA
- ## Author: Robinson
- ## Blog : http://blog.csdn.net/robinson_0612
- ##====================================================================
- #!/bin/bash
- if [ -f ~/.bash_profile ];
- then
- . ~/.bash_profile
- fi
- REV_DIR=/u01/comm_scripts
- dt=`date ‘+%F‘`
- cat /dev/null >${REV_DIR}/ck_restore.log
- cat ${REV_DIR}/db_restore_rman.log | grep "${dt}" >>${REV_DIR}/ck_restore.log
- total=`cat ${REV_DIR}/ck_restore.log |wc -l`
- suc=`grep SUCCEED ${REV_DIR}/ck_restore.log |wc -l`
- fail=`grep FAILED ${REV_DIR}/ck_restore.log |wc -l`
- echo "">>ck_restore.log
- echo -e "The total DB of current recovery is $total in `hostname` \n">>${REV_DIR}/ck_restore.log
- echo -e "The number of succee is : ${suc} \n">>${REV_DIR}/ck_restore.log
- echo -e "The number of fail is : ${fail} \n">>${REV_DIR}/ck_restore.log
- mail -s "RMAN restore summary for `hostname` at `date +‘%a %b %d %Y‘`" [email protected]12306.com <${REV_DIR}/ck_restore.log
3、部署还原shell脚本到crontab
- --首先将多个需要自动restore的DB封装到一个单独的文件,如下:
- --最后调用ck_restore.sh 脚步检测所有DB restore状态并发送RMAN summary report邮件
- $ more full_resotre_by_rman.sh
- #!/bin/bash
- /u01/comm_scripts/db_restore_rman_catalog.sh BC1200
- /u01/comm_scripts/db_restore_rman_catalog.sh AF2630
- /u01/comm_scripts/ck_restore.sh
- --部署到crontab
- --注,无论是备份还是恢复脚本,我们都是通过Bak server的crontab来部署以减轻Prod的压力
- #Rman restore database
- 0 3 * * 1-6 /u01/comm_scripts/full_resotre_by_rman.sh
转:http://blog.csdn.net/leshami/article/details/9850665
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