Managing HP Serviceguard A.11.20.20 for Linux, March 2014

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
information, see “Cluster Lock Planning” (page 84) and
“Specifying a Quorum Server” (page 155).
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 (Select HP Serviceguard Quorum
Server Software).
Can be changed while the cluster is running; see “What
Happens when You Change the Quorum Configuration
Online” (page 43) 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).
92 Planning and Documenting an HA Cluster