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, ,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。
中小型数据库 RMAN CATALOG 备份恢复方案系列文章:
- 中小型数据库 RMAN CATALOG 备份恢复方案(一)
- 中小型数据库 RMAN CATALOG 备份恢复方案(二)
- 中小型数据库 RMAN CATALOG 备份恢复方案(三)
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
## Desc:
## The script uses to restore database with level 0 backupset.
## Author: Robinson
## Blog : http://www.linuxidc.com
##====================================================================
#!/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}
$ORACLE_HOME/bin/rman target / catalog rman_user/xxx@catadb log=${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 $ORACLE_SID on `hostname`." dba@12306.com >${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