HP Serviceguard Extended Distance Cluster for Linux A.11.20.10 Deployment Guide, December 2012

For example, if the name of the node is node1 and the fully qualified domain name for the node
is node1.ind.hp.com, add the following line in the /etc/lvm/lvm_node1.conf file :
activation { volume_list=["@node1.ind.hp.com"] }
Repeat this procedure for every every node that you add in the cluster.
1. Start the package
Starting a package configured for Software RAID is the same as starting any other package
in Serviceguard for Linux.
You also need to keep in mind a few guidelines before you enable Software RAID for a particular
package. Following are some of these guidelines you need to follow:
• Ensure that the Quorum Server link is close to the Ethernet links in your setup. In cases of
failures of all Ethernet and Fibre channel links, the nodes can easily access the Quorum Server
for arbitration.
• The Quorum Server is configured in a third location only for arbitration. In scenarios where
the link between two nodes is lost, each node considers the other node to be dead. As a
result, both nodes will try to access the Quorum Server. The Quorum Server, as an arbitrator,
acknowledges the node that reaches it first and allows the package to start on that node.
• You also need to configure Network Time Protocol (NTP) in your environment. This protocol
synchronizes the nodes irrespective of whether the nodes are in the same or different time
zone.
26 Configuring your Environment for Software RAID