Oracle11g删除数据库和卸载数据库软件步骤

1、删除数据库【RAC】

[root@whepi1 ~]# su - oracle

[oracle@whepi1 ~]$ sqlplus / as sysdba

SQL> alter system set cluster_database=FALSE scope=spfile;

SQL> exit

2、关闭数据库

$ srvctl stop database -d epimes

3、节点1操作启动到独占模式

$ sqlplus / as sysdba

SQL>shutdown immediate;

SQL>startup mount exclusive;

SQL>alter system enable restricted session;

SQL>drop database;

----删除注册信息【root用户】

#cd /u01/grid/11.2.0.4/bin

# ./srvctl remove instance -d epimes -i epimes1

# ./srvctl remove instance -d epimes -i epimes2

# ./srvctl remove database -d epimes

4、删除数据库软件/[ORACLE/GIRD]

【root】

节点1：

/u01/grid/11.2.0.4/crs/install/rootcrs.pl -deconfig -verbose -force

节点2：

/u01/grid/11.2.0.4/crs/install/rootcrs.pl -deconfig -lastnode -force

两节点

# rm -f /etc/init.d/init.ohasd

# rm -f /etc/inittab.crs

# rm -rf /etc/ora*

# rm -f /usr/tmp/.oracle/*

# rm -f /tmp/.oracle/*

# rm -f /var/tmp/.oracle/*

#rm -rf /u01/*

# rm -rf /usr/local/bin/ora*

---ASM磁盘组格式

# dd if=/dev/zero of=/dev/mapper/ocr3 bs=1M count=100

# dd if=/dev/zero of=/dev/mapper/ocr2 bs=1M count=100

# dd if=/dev/zero of=/dev/mapper/ocr1 bs=1M count=100

# dd if=/dev/zero of=/dev/mapper/mes1.1 bs=1M count=100

# dd if=/dev/zero of=/dev/mapper/mes1.2 bs=1M count=100

# dd if=/dev/zero of=/dev/mapper/mes1.3 bs=1M count=100

# dd if=/dev/zero of=/dev/mapper/mes1.4 bs=1M count=100

# dd if=/dev/zero of=/dev/mapper/arch1 bs=1M count=100

# dd if=/dev/zero of=/dev/mapper/mes2.1 bs=1M count=100

# dd if=/dev/zero of=/dev/mapper/mes2.2 bs=1M count=100