yum install -y keepalived nfs01 上的配置文件
[root@nfs01 ~]# cat /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs { router_id nfs01 } vrrp_script check_data { script "/server/scripts/data.sh" interval 2 weight 60 } vrrp_instance oldboy { state MASTER interface eth1 virtual_router_id 51 priority 90 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 172.16.1.3/16 dev eth1 label eth1:1 } track_script { check_data } } [root@nfs01 ~]# cat /server/scripts/data.sh #!/bin/bash # File Name: data.sh # Author: su-lemon # Blog: https://lemonsu9.github.io/ # Mail: 1510973908@qq.com # Created Time:Wed 19 Sep 2018 11:53:29 PM CST # Description: This is a test script nfs_info=$(ps -ef|grep -c nfs) if [ $nfs_info -ge 4 ] then echo "nfs is start~" exit 0 else echo "nfs is stop~" exit 1 fi echo 'net.ipv4.ip_nonlocal_bind = 1' >>/etc/sysctl.conf sysctl -p /etc/init.d/keepalived start rsync 上的配置文件 [root@backup ~]# cat /etc/keepalived/keepalived.conf ! Configuration File for keepalived global_defs { router_id backup } vrrp_instance oldboy { state BACKUP interface eth1 virtual_router_id 51 priority 100 advert_int 1 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 172.16.1.3/16 dev eth1 label eth1:1 } } 在backup 的/etc/rsyncd.conf 配置文件中添加一个data模块,并将uid gid 改为www [root@backup ~]# cat /etc/rsyncd.conf uid = www gid = www use chroot = no max connections = 20 timeout = 300 pid file = /var/run/rsyncd.pid lock file = /var/run/rsync.lock log file = /var/log/rsyncd.log ignore errors read only = false list = false hosts allow = 172.16.1.0/24 hosts deny = 0.0.0.0/32 auth users = rsync_backup secrets file = /etc/rsync.password [backup] comment = "backup dir by oldboy" path = /backup [data] path = /data nfs 服务的配置文件 nfs01 和 backup 一样 [root@nfs01 ~]# cat /etc/exports #share /data by su-lemon for share at 20180918 /data/www 172.16.1.0/24(rw,sync,no_all_squash,root_squash,anonuid=666,anongid=666) /data/blog 172.16.1.0/24(rw,sync,no_all_squash,root_squash,anonuid=666,anongid=666) /data/bbs 172.16.1.0/24(rw,sync,no_all_squash,root_squash,anonuid=666,anongid=666) [root@backup ~]# ll /data total 12 drwxrwxrwx 2 www www 4096 Sep 20 00:17 bbs drwxrwxrwx 2 www www 4096 Sep 20 00:17 blog drwxrwxrwx 2 www www 4096 Sep 20 00:17 www [root@nfs01 ~]# ll /data total 12 drwxrwxrwx 2 www www 4096 Sep 19 13:18 bbs drwxrwxrwx 2 www www 4096 Sep 19 13:18 blog drwxrwxrwx 2 www www 4096 Sep 19 13:18 www data目录权限777 所属组和主 为www 将服务设为开机自启 chkconfig nfs on chkconfig keepalived on 对web服务器上的网站上传目录进行挂载 [root@web01 ~]# ll /tmp total 964 -rw-r--r-- 1 root root 962858 Sep 18 11:22 bak.sql drwxr-xr-x 21 root root 4096 Sep 20 08:38 DedeCMS_bak drwxr-xr-x 11 root root 4096 Sep 20 08:44 Discuz_bak drwxr-xr-x 3 root root 4096 Sep 18 10:20 pear drwxr-xr-x 3 root root 4096 Sep 20 08:39 wordpress_bak drwxrwxrwx 3 www www 4096 Sep 19 11:44 www -rw-------. 1 root root 0 Sep 17 20:44 yum.log 将数据迁移出来(web 01,02,03 一样) [root@web01 ~]# mv /application/nginx/html/www/uploads/* /tmp/DedeCMS_bak/ [root@web01 ~]# mv /application/nginx/html/blog/wp-content/uploads/* /tmp/wordpress_bak/ [root@web01 ~]# mv /application/nginx/html/bbs/upload/data/attachment/* /tmp/Discuz_bak/ 挂载(web 01,02,03 一样) [root@web01 ~]# mount -t nfs 172.16.1.3:/data/www /application/nginx/html/www/uploads/data/ [root@web01 ~]# mount -t nfs 172.16.1.3:/data/bbs /application/nginx/html/bbs/upload/data/attachment/ [root@web01 ~]# mount -t nfs 172.16.1.3:/data/blog /application/nginx/html/blog/wp-content/uploads/ [root@web01 ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/sda3 48G 3.8G 42G 9% / tmpfs 190M 0 190M 0% /dev/shm /dev/sda1 190M 35M 146M 19% /boot 172.16.1.3:/data/www 48G 1.5G 44G 4% /application/nginx-1.14/html/www/uploads/data 172.16.1.3:/data/bbs 48G 1.5G 44G 4% /application/nginx-1.14/html/bbs/upload/data/attachment 172.16.1.3:/data/blog 48G 1.5G 44G 4% /application/nginx-1.14/html/blog/wp-content/uploads 将数据移回去(web01),但是只需要将web01 上的数据移动回去,web02 web03 不需要将数据移动回去 [root@web01 wordpress_bak]# cp -r /tmp/wordpress_bak/* /application/nginx/html/blog/wp-content/uploads/ [root@web01 wordpress_bak]# cp -r /tmp/Discuz_bak/* /application/nginx/html/bbs/upload/data/attachment/ [root@web01 wordpress_bak]# cp -r /tmp/DedeCMS_bak/* /application/nginx/html/www/uploads/data/