Managing Serviceguard Sixteenth Edition, March 2009

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 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 66) 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 additional software; see the documents
listed under “Cross-Subnet Configurations”
(page 41) for more information.
You can define multiple SITE_NAMEs.
SITE_NAME entries must precede any
NODE_NAME entries. See also SITE.
142 Planning and Documenting an HA Cluster