1，由于heartbeat 不能绑定IP，经过一星期的定位，终于找到解决方案，领导不用劈我了，哈哈哈哈！
2，以下是使用keeopalived 解决方案
脚本 1 ： check_nfs.sh
#!/bin/sh
###检查nfs可用性：进程和是否能够挂载
/sbin/service nfs status &>/dev/null
if [ $? -ne 0 ];then
###如果服务状态不正常，先尝试重启服务
/sbin/service nfs restart
/sbin/service nfs status &>/dev/null
if [ $? -ne 0 ];then
###若重启nfs服务后，仍不正常
###卸载drbd设备
umount /dev/drbd0
###将drbd主降级为备
drbdadm secondary r0
#关闭keepalived
/sbin/service keepalived stop
fi
fi
脚本 2 ： notify_backup.sh
#!/bin/bash
time=`date "+%F %H:%M:%S"`
echo -e "$time ------notify_backup------\n" >> /etc/keepalived/logs/notify_backup.log
/sbin/service nfs stop &>> /etc/keepalived/logs/notify_backup.log
/bin/umount /dev/drbd0 &>> /etc/keepalived/logs/notify_backup.log
/sbin/drbdadm secondary r0 &>> /etc/keepalived/logs/notify_backup.log
echo -e "\n" >> /etc/keepalived/logs/notify_backup.log
脚本 3： notify_master.sh
#!/bin/bash
time=`date "+%F %H:%M:%S"`
echo -e "$time ------notify_master------\n" >> /etc/keepalived/logs/notify_master.log
/sbin/drbdadm primary r0 &>> /etc/keepalived/logs/notify_master.log
/bin/mount /dev/drbd0 /web &>> /etc/keepalived/logs/notify_master.log
/sbin/service nfs restart &>> /etc/keepalived/logs/notify_master.log
echo -e "\n" >> /etc/keepalived/logs/notify_master.log
脚本 4 ：notify_stop.sh
#!/bin/bash
time=`date "+%F %H:%M:%S"`
echo -e "$time ------notify_stop------\n" >> /etc/keepalived/logs/notify_stop.log
/sbin/service nfs stop &>> /etc/keepalived/logs/notify_stop.log
/bin/umount /web &>> /etc/keepalived/logs/notify_stop.log
/sbin/drbdadm secondary r0 &>> /etc/keepalived/logs/notify_stop.log
echo -e "\n" >> /etc/keepalived/logs/notify_stop.log
3, 参考链接
blog.csdn.net/nimasike/article/details/52463806 // keepalived 不抢占VIP
blog.csdn.net/kai404/article/details/52860222 // keepalived+nfs+drbd
www.heminjie.com/system/linux/3313.html // heartbeat+nfs+drbd
note.youdao.com/share/ // 脚本下载地址
studys.blog.51cto.com/9736817/1656222 //keepalived 介绍
