Managing Serviceguard 11th Edition, Version A.11.16, Second Printing June 2004

Planning and Documenting an HA Cluster
Cluster Configuration Planning
Chapter 4 149
The quorum server timeout is the time during which
the quorum server is not communicating with the
cluster. After this time, the cluster will mark the
quorum server DOWN. This time is calculated based on
Serviceguard parameters, but you can increase it by
adding an additional number of microseconds as an
extension.
The QS_TIMEOUT_EXTENSION is an optional parameter.
FIRST_CLUSTER_LOCK_VG, SECOND_CLUSTER_LOCK_VG
The volume group containing the physical disk volume
on which a cluster lock is written. Identifying a cluster
lock volume group is essential in a two-node cluster. If
you are creating two cluster locks, enter the volume
group name or names for both locks. This parameter is
only used when you employ a lock disk for tie-breaking
services in the cluster.
Use FIRST_CLUSTER_LOCK_VG for the first lock volume
group. If there is a second lock volume group, the
parameter SECOND_CLUSTER_LOCK_VG is included in
the file on a separate line.
NOTE Lock volume groups must also be defined in
VOLUME_GROUP parameters in the cluster ASCII
configuration file.
NODE_NAME The hostname of each system that will be a node in the
cluster. The node name can be up to 31 bytes long. The
node name must not contain the full domain name. For
example, enter ftsys9, not ftsys9.cup.hp.com.
NETWORK_INTERFACE
The name of each LAN that will be used for heartbeats
or for user data. An example is lan0.
HEARTBEAT_IP