centos6.x drbd설치
Centos6에서 DRBD rpm 으로 설치
[root@localhost ~]# rpm -ivh http://elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm
[root@localhost ~]# yum install *drbd84* -y
[root@localhost ~]# modprobe drbd
[root@localhost ~]# lsmod | grep drbd
drbd 297925 0
libcrc32c 841 1 drbd