Managing Serviceguard Eighteenth Edition, September 2010

monitored non-heartbeat subnets here. You can
identify any number of subnets to be monitored.
IMPORTANT: In a cross-subnet configuration,
each package subnet configured on an interface
(NIC) must have a standby interface connected
to the local bridged network. See “Cross-Subnet
Configurations” (page 41) for important
information about requirements for such
configurations.
If HOSTNAME_ADDRESS_FAMILY is set to
IPV4 or ANY, a stationary IP address can be either
an IPv4 or an IPv6 address. If
HOSTNAME_ADDRESS_FAMILY is set to IPV6,
all the IP addresses used by the cluster must be
IPv6 addresses. For information about the IPv6
address format, see “IPv6 Address Types”
(page 475).
For information about changing the configuration
online, see “Changing the Cluster Networking
Configuration while the Cluster Is Running”
(page 367).
CLUSTER_LOCK_LUN The path on this node for the LUN used for the
cluster lock. Used only if a lock LUN is used for
tie-breaking services.
Enter the path as it appears on each node in the
cluster (the same physical device may have a
different name on each node). The path must
identify a block device.
You cannot create a dual cluster-lock
configuration using LUNs.
See “Setting Up a Lock LUN” (page 226) and
“Specifying a Lock LUN” (page 247) for more
information.
Can be changed while the cluster is running; see
“Updating the Cluster Lock LUN Configuration
Online” (page 364). See also “What Happens
when You Change the Quorum Configuration
Online” (page 66) for important information.
156 Planning and Documenting an HA Cluster