Tagged: high availability

Dual Primary DRBD on CentOS 6: GFS2 & Pacemaker

This guide describes how to create a pair of redundant file servers using DRBD for replication, RedHat GFS2 (Global File System), and Pacemaker for cluster management. In this case we are also using RackSpace...

Install CRMSH on CentOS 6 / 7

The CRM Shell for Pacemaker cluster management can be installed by fetching the OpenSUSE ha-clustering repository and installing crmsh via yum. Get the OS version (6 or 7) and use to fetch the correct...

DRBD: Redundant NFS Storage on CentOS 6

A pair of CentOS NFS servers can be a great way to build an inexpensive, reliable, redundant fileserver. Here we are going to use DRBD to replicate the data between NFS nodes and Heartbeat...