HP Serviceguard Happens when You Change the Quorum Configuration, and Specifying a Quorum Server

	NOTE: Lock volume groups must also be defined in
	VOLUME_GROUP parameters in the cluster configuration file.
	Can be changed while the cluster is running; see “What
	Happens when You Change the Quorum Configuration
	Online” (page 49) for important information.
QS_HOST	The fully-qualified hostname or IP address of a system outside
	the current cluster that is providing quorum service to the
	cluster. 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 “Using a Quorum Server”
	(page 99) and “Specifying a Quorum Server” (page 190).
	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 under HP Serviceguard
	Quorum Server Software.
	IMPORTANT: See also“About Hostname Address Families:
	IPv4-Only,IPv6-Only, and Mixed Mode” (page 106) 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 49) for important information.
QS_ADDR	An alternate fully-qualified hostname or IP address for the
	Quorum Server. 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.
	The alternate subnet need not use the same address family
	as QS_HOST if HOSTNAME_ADDRESS_FAMILY is set to
	ANY. For more information, see “Using a Quorum Server”
	(page 99) and “Specifying a Quorum Server” (page 190).

Cluster Configuration Planning 111