Managing Serviceguard Eighteenth Edition, September 2010

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 www.hp.com/go/
hpux-serviceguard-docs -> HP
Serviceguard Quorum Server Software.
See also “About Hostname Address Families:
IPv4-Only, IPv6-Only, and Mixed Mode”
(page 139) 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 66) 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 66) 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
Cluster Configuration Planning 147