LVS 的几个脚本 挺有用的 配置HA的时候可以看看
1.VS/NATecho "1" > /proc/sys/net/ipv4/ip_forward //打开IP转发
ipvsadm –C //清除现有Ipvs规则
ipvsadm -A -t 202.114.216.177:80 -s rr //使用轮叫调度算法
ipvsadm -a -t 202.114.216.177:80 -r 192.168.88.10:80 -m -w 1//添加RS1服务器的调度
ipvsadm -a -t 202.114.216.177:80 -r 192.168.88.20:80 -m -w 1 //如上
ipvsadm -a -t 202.114.216.177:80 -r 192.168.88.30:80 -m -w 1 //如上
2,VS/DR
LVS:
ifconfig eth0:0 202.114.216.177 broadcast 202.114.216.177 netmask 255.255.255.255 up
route add -host 202.114.216.177 dev eth0:0
ipvsadm -A -t 202.114.216.177:80 -s rr //使用轮叫调度算法
ipvsadm -a -t 202.114.216.177:80 -r 202.114.216.231 -g//添加RS1服务器的调度
ipvsadm -a -t 202.114.216.177:80 -r 202.114.216.232 -g //同上
ipvsadm -a -t 202.114.216.177:80 -r 202.114.216.233 -g //同上
ipvsadm
chmod 777 /etc/init.d/vip.sh //修改权限
RS
ifconfig lo:0 202.114.216.177broadcast 202.114.216.177 netmask 255.255.255.255 up
route add -host 202.114.216.177 dev lo:0 //添路主机路由
echo "1" > /proc/sys/net/ipv4/conf/lo/arp_ignore //关闭ARP广播请求
echo "2" > /proc/sys/net/ipv4/conf/lo/arp_announce
echo "1" > /proc/sys/net/ipv4/conf/all/arp_ignore
echo "2" > /proc/sys/net/ipv4/conf/all/arp_announce
sysctl–p //立即让配置在内核中生效
chmod 777 /etc/init.d/lvs.sh //修改权限
3.VS/TUNE
LVS
ifconfig tunl0 202.114.216.177 broadcast 202.114.216.177 netmask 255.255.255.255 up
route add -host 202.114.216.177 dev tunl0
ipvsadm -A -t 202.114.216.177:80 -s rr //使用轮叫调度算法
ipvsadm -a -t 202.114.216.177:80 -r 202.114.216.231 -i //添加RS1服务器的调度
ipvsadm -a -t 202.114.216.177:80 -r 202.114.216.232 -i //如上
ipvsadm -a -t 202.114.216.177:80 -r 202.114.216.233 -i //如上
ipvsadm
chmod 777 /etc/init.d/vip.sh //修改权限
RS
ifconfig tunl0 202.114.216.177 broadcast 202.114.216.177 netmask 255.255.255.255 up
route add -host 202.114.216.177 dev tunl0 //添路主机路由
echo "1" > /proc/sys/net/ipv4/conf/lo/arp_ignore //关闭ARP广播请求
echo "2" > /proc/sys/net/ipv4/conf/lo/arp_announce
echo "1" > /proc/sys/net/ipv4/conf/all/arp_ignore
echo "2" > /proc/sys/net/ipv4/conf/all/arp_announce
sysctl–p //立即让配置在内核中生效
chmod 777 /etc/init.d/lvs.sh //修改权限
--------------------我是分界线--------------------------------------
RAID 5
mdadm -Cv /dev/md0 -l5 -n3 /dev/sd -x1 /dev/sde//利用三块磁盘sdb ,sdc,sdd创建名称为md0设备的RAID5级别的磁盘阵列，另外sde为热备份盘
mkfs.ext3 /dev/md0 //以ext3的文件系统格式化md0设备
mdadm -D /dev/md0 //查看RAID5阵列的磁盘状态
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