Managing HP Serviceguard A.11.20.10 for Linux, December 2012

Serviceguard Quorum Server release notes at http://www.hp.com/go/hpux-serviceguard-docs
(Select HP Serviceguard Quorum Server Software). See also “Use of the Quorum Server as a Cluster
Lock” (page 39).
The path for this daemon is:
• For SUSE: /opt/qs/bin/qs
• For Red Hat: /usr/local/qs/bin/qs
3.1.1.9 Utility Daemon: cmlockd
Runs on every node on which cmcld is running. It maintains the active and pending cluster resource
locks.
3.1.1.10 Cluster SNMP Agent Daemon: cmsnmpd
This daemon collaborates with the SNMP Master Agent to provide instrumentation for the cluster
Management Information Base (MIB).
The SNMP Master Agent and the cmsnmpd provide notification (traps) for cluster-related events.
For example, a trap is sent when the cluster configuration changes, or when a Serviceguard
package has failed. To configure the agent to send traps to one or more specific destinations, add
the trap destinations to /etc/snmp/snmptrapd.conf (SUSE and Red Hat). Make sure traps
are turned on with trap2sink in /etc/snmp/snmpd.conf (SUSE and Red Hat).
The installation of the cmsnmpd rpm configures snmpd and cmsnmpd to start up automatically.
Their startup scripts are in /etc/init.d/. The scripts can be run manually to start and stop the
daemons.
For more information, see the cmsnmpd (1)manpage.
3.1.1.11 Cluster WBEM Agent Daemon: cmwbemd
This daemon collaborates with the Serviceguard WBEM provider plug-in module (SGProviders)
and WBEM services cimserver (for Red Hat Enterprise Linux server) or sfcbd (SUSE Linux
Enterprise Server) to provide notification (WBEM Indications) of Serviceguard cluster events to
Serviceguard WBEM Indication subscribers that have registered a subscription with the cimserver
(for Red Hat Enterprise Linux server) or sfcbd (SUSE Linux Enterprise Server) . For example, an
Indication is sent when the cluster configuration changes, or when a Serviceguard package has
failed.
You can start and stop cmwbemd with the commands /etc/init.d/cmwbemd start and
/etc/init.d/cmwbemd stop.
3.1.1.12 Proxy Daemon: cmproxyd
This daemon is used to proxy or cache Serviceguard configuration data for use by certain
Serviceguard commands running on the local node. This allows these commands to get the data
quicker and removes the burden of responding to certain requests from cmcld.
3.1.2 Serviceguard WBEM Provider
3.1.2.1 What is WBEM?
Web-Based Enterprise Management (WBEM) is a set of management and Internet standard
technologies developed to unify the management of distributed computing environments, facilitating
the exchange of data across otherwise disparate technologies and platforms. WBEM is based on
Internet standards and Distributed Management Task Force (DMTF) open standards: Common
Information Model (CIM) infrastructure and schema, CIM-XML, CIM operations over HTTP, and
WS-Management.
34 Understanding Serviceguard Software Components