HP manual Hpux-serviceguard-docs under HP Serviceguard

	IMPORTANT: 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.hp.com/go/
	hpux-serviceguard-docs under HP Serviceguard
	Quorum Server Software.
	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_POLLING_INTERVAL	The time (in microseconds) between attempts to contact the
	Quorum Server to make sure it is running. Default is
	300,000,000 microseconds (5 minutes). Minimum is
	10,000,000 (10 seconds). Maximum is 2,147,483,647
	(approximately 35 minutes).
	Can be changed while the cluster is running; see “What
	Happens when You Change the Quorum Configuration
	Online” (page 49) for important information.
QS_TIMEOUT_EXTENSION	Optional parameter used to increase the time (in
	microseconds) to wait for a quorum server response.
	The default quorum server timeout is calculated from the
	Serviceguard cluster parameter MEMBER_TIMEOUT. For
	clusters of two nodes, it is 0.1 * MEMBER_TIMEOUT; for
	more than two nodes it is 0.2 * MEMBER_TIMEOUT.
	You can use the QS_TIMEOUT_EXTENSION to increase the
	time interval after which the current connection (or attempt
	to connect) to the Quorum Server is deemed to have failed;
	but do not do so until you have read the HP Serviceguard
	Quorum Server Version A.04.00 Release Notes, and in
	particular the following sections in that document: “About
	the QS Polling Interval and Timeout Extension”, “Network
	Recommendations”, and “Setting Quorum Server 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.
SITE_NAME	The name of a site to which nodes (see NODE_NAME) belong.
	Can be used only in a site-aware disaster-tolerant cluster,
	which requires Metrocluster (additional HP software); see
	the documents listed under “Cross-Subnet Configurations”
	(page 30) for more information.
	You can define multiple SITE_NAMEs. SITE_NAME entries
	must precede any NODE_NAME entries. See also SITE.

112 Planning and Documenting an HA Cluster