1.删除grid 和 oracle 文件路径
2.删除自动配置的相关文件
/etc/ora*
/tmp/.oracle
/var/tmp/.oracle
/etc/inittab.crs
/etc/init.d/init.ohasd
/etc/init.d/ohasd
/tmp/CVU_*
/tmp/OraInsta*
/opt/ORCLfmap
/usr/local/bin/dbhome
/usr/local/bin/oraenv
/usr/local/bin/coraenv
3.格式化ASM磁盘
例如：
dd if=/dev/zero of=/dev/asm-disk0 bs=1024 count=5000
4.重启