On Wed, Jan 11, 2012 at 3:30 AM, Andrew Martin <amar...@xes-inc.com> wrote: > Hello, > > I am creating a 2 node active/passive cluster for a fileserver (NFS and > Samba) using DRBD + Heartbeat + Pacemaker on Ubuntu 10.04 following this > guide: http://www.linbit.com/fileadmin/tech-guides/ha-nfs.pdf. I'd like to > enable quorum and STONITH to ensure data integrity. Thus I want to configure > a 3rd node that does not have DRBD, nfsd, or smbd installed but is just used > to provide quorum (and ensure that the master node is connected to the rest > of the network). I found a brief description of how to do this at the link > below, however I'm not clear on all of the steps involved: > http://www.gossamer-threads.com/lists/linuxha/pacemaker/72985#72985 > > My understanding is that these steps are required: > 1. install heartbeat on the 3rd node, node3. Does it have to be the exact > same version of heartbeat (this node is running CentOS 5.6)?
Ideally yes. > 2. copy the ha.cf and authkeys configuration files to node3 yep > 3. Limit the DRBD, nfs, and smbd resources to only node1 and node2 by adding > a location rule for the g_nfs group (which includes p_fs_drbd0 > p_lsb_nfsserver p_exportfs_drbd0 p_ip_nfs): > # crm configure location ms-drbd0-placement ms-drbd0 rule -inf: uname ne > node1 and uname ne node2 Right. > Is there anything else that needs to be done to add this 3rd quorum node to > the cluster? Depending on the pacemaker version, you may need to make sure all the agents are present on the third node (we'll use them to check the services are /not/ running) _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org
