How to install DRBD 8.3.13 using YUM.

Before installation DRBD, it recommends system update using YUM and node should be connect an internet to download the package.

DRBD® is Data Replication software of LINBIT® . MCCS for linux manages this as mirror disk.

Update Yum repository.
In RHEL 6.x case.
# rpm -Uvh http://elrepo.org/elrepo-release-6-4.el6.elrepo.noarch.rpm
In RHEL 5.x case.
rpm -Uvh http://elrepo.org/elrepo-release-5-4.el5.elrepo.noarch.rpm
Modify ELRepository information
# vi /etc/yum.repos.d/elrepo.repo
Modify "enabled=1" to "enabled=0".
[elrepo] name=ELRepo.org Community Enterprise Linux Repository - el6 baseurl=http://elrepo.org/linux/elrepo/el6/$basearch/ mirrorlist=http://elrepo.org/mirrors-elrepo.el6 enabled=0 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-elrepo.org D protect=0
Install DRBD 8.3.13 and associated modules using ELRepository.
# yum --enablerepo=elrepo install drbd83-utils-8.3.13 kmod-drbd83-8.3.13
Restart DRBD service after installation.
# service drbd restart
You can DRBD after restart DRBD service.

In addition, please refer to following link for more details about DRBD.

8- Appendix DRBD Installation