Managing HP Serviceguard A.11.20.20 for Linux, May 2013

Quorum Server host names. Valid values are IPV4, IPV6,
and ANY. The default is IPV4.
• IPV4 means Serviceguard will try to resolve the names
to IPv4 addresses only.
• IPV6 means Serviceguard will try to resolve the names
to IPv6 addresses only.
• ANY means Serviceguard will try to resolve the names
to both IPv4 and IPv6 addresses.
IMPORTANT: See “About Hostname Address Families:
IPv4-Only, IPv6-Only, and Mixed Mode” (page 88) for
important information. See also the latest Serviceguard
release notes at
http://www.hp.com/go/linux-serviceguard-docs.
QS_HOST The fully-qualified hostname or IP address of a host system
outside the current cluster that is providing quorum server
functionality. It must be (or resolve to) an IPv4 address on
Red Hat 5. On SLES 11, it can be (or resolve to) either an
IPv4 or an IPv6 address if HOSTNAME_ADDRESS_FAMILY
is set to ANY, but otherwise must match the setting of
HOSTNAME_ADDRESS_FAMILY. This parameter is used
only when you employ a quorum server for tie-breaking
services in the cluster. You can also specify an alternate
address (QS_ADDR) by which the cluster nodes can reach
the quorum server.
For more information, see “Cluster Lock Planning” (page 84)
and “Specifying a Quorum Server” (page 155). See also
“Configuring Serviceguard to Use the Quorum Server” in
the latest version HP Serviceguard Quorum Server Version
A.04.00 Release Notes, at http://www.hp.com/go/
hpux-serviceguard-docs (Select HP Serviceguard Quorum
Server Software).
IMPORTANT: See also“About Hostname Address Families:
IPv4-Only, IPv6-Only, and Mixed Mode” (page 88) for
important information about requirements and restrictions
in an IPv6–only cluster.
Can be changed while the cluster is running; see “What
Happens when You Change the Quorum Configuration
Online” (page 43) for important information.
QS_ADDR An alternate fully-qualified hostname or IP address for the
quorum server. It must be (or resolve to) an IPv4 address on
Red Hat 5 and Red Hat 6. On SLES 11, it can be (or resolve
to) either an IPv4 or an IPv6 address if
HOSTNAME_ADDRESS_FAMILY is set to ANY, but otherwise
must match the setting of HOSTNAME_ADDRESS_FAMILY.
This parameter is used only if you use a quorum server and
want to specify an address on an alternate subnet by which
it can be reached. On SLES 11, the alternate subnet need
not use the same address family as QS_HOST if
HOSTNAME_ADDRESS_FAMILY is set to ANY. For more
92 Planning and Documenting an HA Cluster