CentOS 6.5 drbd

lizh

　　环境：centos 6.5 最小化安装，drbd-8.4.6，drbd-utils-8.9.5，在两个系统上新建sdb1分区
　　

　　1、在主从节点上安装drbd-8.4.6
echo "192.168.100.162 mysql-slave.example.com">>/etc/hosts
echo "192.168.100.160 mysql-proxy.server.local">>/etc/hosts
yum install -y kernel kernel-devel kernel-headers gcc flex libxslt
tar zxf drbd-8.4.6.tar.gz
cd drbd-8.4.6
make KDIR=/usr/src/kernels/2.6.32-431.el6.x86_64/
make install
modprobe drbd
lsmod | grep drbd　　

　　2、在主从节点上安装drbd-utils-8.9.5
tar zxf drbd-utils-8.9.5.tar.gz
cd drbd-utils-8.9.5
./configure --prefix=/usr/local/drbd --without-83support
make
make install
echo $?
cp /usr/local/drbd/etc/rc.d/init.d/drbd /etc/init.d/drbd
chkconfig --add drbd
chkconfig drbd on
vim /usr/local/drbd/etc/drbd.conf
global {
usage-count no;
}
common {
syncer { rate 200M; }  
}
resource r0 {  
protocol C;
startup {
wfc-timeout 120;
degr-wfc-timeout 120;
}
disk {
on-io-error detach;
}
net{
timeout 60;
connect-int 10;
ping-int 10;
max-buffers 2048;
max-epoch-size 2048;
cram-hmac-alg "sha1";
shared-secret "Mysql-abcD";
}
on mysql-proxy.server.local {  
device /dev/drbd0;
disk   /dev/sdb1;
address 192.168.100.160:6666;
meta-disk internal;
}
on mysql-slave.example.com {
device /dev/drbd0;
disk   /dev/sdb1;
address 192.168.100.162:6666;
meta-disk internal;
}
}
mkdir -p /usr/local/drbd/var/run/drbd
drbdadm create-md r0
service drbd start
service drbd status　　

　　3、将主节点设置为Primary
drbdadm -- --overwrite-data-of-peer primary all
drbdadm primary all
mkfs.ext4 /dev/drbd0
mkdir /drbd
mount /dev/drbd0 /debd　　

　　4、查看从节点上数据
service drbd stop
mkdir /drbd
mount /dev/sdb1 /drbd
ls /drbd
umount /drbd
service drbd start　　

　　5、主从节点切换
#将主节点drbd的状态变为从
umount /data
drbdadm secondary all
#在从节点上进行挂载
drbdadm primary all
mount /dev/drbd0 /drbd
ls /drbd　　

　　参考博文：
　　http://xianglinhu.blog.51cto.com/5787032/1659415
　　https://www.centos.bz/2012/02/drbd-compile-install-deploy/