Managing Serviceguard Sixteenth Edition, March 2009

NODE_NAME hasupt21
NETWORK_INTERFACE lan1
HEARTBEAT_IP 15.13.173.189
NETWORK_INTERFACE lan2
NETWORK_INTERFACE lan3
CLUSTER_LOCK_LUN /dev/dsk/c0t1d1
Specifying a Quorum Server
IMPORTANT: The following are standard instructions. For special instructions that
may apply to your version of Serviceguard and the Quorum Server see “Configuring
Serviceguard to Use the Quorum Server” in the latest version HP Serviceguard Quorum
Server Version A.04.00 Release Notes, at http://www.docs.hp.com -> High
Availability -> Quorum Server.
A cluster lock LUN or quorum server, is required for two-node clusters. To obtain a
cluster configuration file that includes Quorum Server parameters, use the -q option
of the cmquerycl command, specifying a Quorum Server hostname or IP address ,
for example (all on one line):
cmquerycl -q <QS_Host> -n ftsys9 -n ftsys10 -C <ClusterName>.conf
To specify an alternate hostname or IP address by which the Quorum Server can be
reached, use a command such as (all on one line):
cmquerycl -q <QS_Host> <QS_Addr> -n ftsys9 -n ftsys10 -C
<ClusterName>.conf
Enter the QS_HOST (IPv4 or IPv6), optional QS_ADDR (IPv4 or IPv6),
QS_POLLING_INTERVAL, and optionally a QS_TIMEOUT_EXTENSION; and also
check the HOSTNAME_ADDRESS_FAMILY setting, which defaults to IPv4. See the
parameter descriptions under “Cluster Configuration Parameters ” (page 138) for more
information.
Obtaining Cross-Subnet Information
As of Serviceguard A.11.18 it is possible to configure multiple subnets, joined by a
router, both for the cluster heartbeat and for data, with some nodes using one subnet
and some another. See “Cross-Subnet Configurations” (page 41) for rules and
definitions.
You must use the -w full option to cmquerycl to discover the available subnets.
For example, assume that you are planning to configure four nodes, NodeA, NodeB,
NodeC, and NodeD, into a cluster that uses the subnets 15.13.164.0, 15.13.172.0,
15.13.165.0, 15.13.182.0, 15.244.65.0, and 15.244.56.0.
The following command
cmquerycl –w full –n nodeA –n nodeB –n nodeB –n nodeC –n nodeD
will produce the output such as the following:
220 Building an HA Cluster Configuration