Novell SUSE LINUX ENTERPRISE SERVER 10 SP2 HEARTBEAT Manual page 59

<nvpair id="drbd-nv-5" name="drbd_resource" value="r0"/>
</attributes>
</instance_attributes>
</primitive>
</master_slave>
The master element of this resource is master_slave. The complete resource
is later accessed with the ID drbd_resource.
clone_max defines how many masters and slaves may be present in the cluster.
clone_node_max is the maximum number of clones (masters or slaves) that
are allowed to run on a single. node.
master_max sets how many masters may be available in the cluster.
master_node_max is similar to clone_node_max and defines how many
master instances may run on a single node.
notify is used to inform the cluster before and after a clone of the
master_slave resource is stopped or started. This is used to reconfigure one
of the clones to be a master of this resource.
The actually working RA inside this master slave resource is the drbd
primitive.
The most important parameter this resource needs to know about is the name of
the drbd resource to handle.
NFS Server and IP Address
To make the NFS server always available at the same IP address, use an additional IP
address as well as the ones the machines use for their normal operation. This IP address
is then assigned to the active NFS server in addition to the system's IP address.
The NFS server and the IP address of the NFS server should always be active on the
same machine. In this case, the start sequence is not very important. They may even be
started at the same time. These are the typical requirements for a group resource.
Before starting the Heartbeat RA configuration, configure the NFS server with YaST.
Do not let the system start the NFS server. Just set up the configuration file. If you want
to do that manually, see the manual page exports(5) (man 5 exports. The configu-
ration file is /etc/exports. The NFS server is configured as an LSB resource.
Manual Configuration of a Cluster 51