Managing Serviceguard 13th Edition, February 2007

Building an HA Cluster Configuration
Configuring the Cluster
Chapter 5224
Specifying a Quorum Server
To specify a quorum server instead of a lock disk, use the -q option of the
cmquerycl command, specifying a Quorum Server host server. Example:
# cmquerycl -n ftsys9 -n ftsys10 -q qshost
The cluster ASCII file that is generated in this case contains parameters
for defining the quorum server. This portion of the file is shown below:
# Quorum Server Parameters. Use the QS_HOST,
QS_POLLING_INTERVAL,
# and QS_TIMEOUT_EXTENSION parameters to define a quorum
server.
# The QS_HOST is the host name or IP address of the system
# that is running the quorum server process. The
# QS_POLLING_INTERVAL (microseconds) is the interval at which
# The optional QS_TIMEOUT_EXTENSION (microseconds) is used to
increase
# the time interval after which the quorum server is marked
DOWN.
#
# The default quorum server interval is calculated from the
# Serviceguard cluster parameters, including NODE_TIMEOUT and
# HEARTBEAT_INTERVAL. If you are experiencing quorum server
# timeouts, you can adjust these parameters, or you can include
# the QS_TIMEOUT_EXTENSION parameter.
#
# For example, to configure a quorum server running on node
# "qshost" with 120 seconds for the QS_POLLING_INTERVAL and to
# add 2 seconds to the system assigned value for the quorum
server
# timeout, enter:
#
# QS_HOST qshost
# QS_POLLING_INTERVAL 120000000
# QS_TIMEOUT_EXTENSION 2000000
Enter the QS_HOST, QS_POLLING_INTERVAL and, if desired, a
QS_TIMEOUT_EXTENSION.