Managing HP Serviceguard for Linux Ninth Edition, April 2009

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.docs.hp.com
-> High Availability -> Quorum
Server.
Can be changed while the cluster is running; see
“What Happens when You Change the Quorum
Configuration Online” (page 48) 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 48) for important
information.
QS_TIMEOUT_EXTENSION 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 48) for important
information.
104 Planning and Documenting an HA Cluster