Managing Serviceguard Eighteenth Edition, September 2010

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 of the HP Serviceguard
Quorum Server Version A.04.00 Release Notes, at www.hp.com/go/
hpux-serviceguard-docs -> HP Quorum Server Software.
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 143) for more
information.
IMPORTANT: For important information, see also “About Hostname Address Families:
IPv4-Only, IPv6-Only, and Mixed Mode” (page 139); and “What Happens when You
Change the Quorum Configuration Online” (page 66)
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:
248 Building an HA Cluster Configuration