Managing Serviceguard A.11.20, March 2013

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 50) 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 50) 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 Metrocluster (additional HP software); see
the documents listed under “Cross-Subnet Configurations”
(page 29) for more information.
You can define multiple SITE_NAMEs. SITE_NAME entries
must precede any NODE_NAME entries. See also SITE.
NODE_NAME The hostname of each system that will be a node in the
cluster.
CAUTION: Make sure that the node name is unique within
the subnets configured on the cluster nodes; under some
circumstances Serviceguard may not be able to detect a
duplicate name and unexpected problems may result.
Do not use the full domain name. For example, enter
ftsys9, not ftsys9.cup.hp.com. A Serviceguard cluster
can contain up to 16 nodes (though not in all third-party
configurations; see “Veritas Cluster Volume Manager (CVM)”
(page 86), and the latest Release Notes for your version of
Serviceguard).
Cluster Configuration Planning 117