Using Serviceguard Extension for RAC Version A.11.20 - (August 2011)

NOTE: Beginning with HP-UX 11i v3 1109 HA-OE/DC-OE, SGeRAC is included as a licensed
bundle at no additional cost. To install SGeRAC A.11.20 on your system during 1109
HA-OE/DC-OE installation, you must select T1907BA (SGeRAC) in the Software tab.
If you are using any one of the bundles namely, T2771DB, T2773DB, T2774DB, T2775DB,
T8684DB, T8694DB, T8685DB, T8695DB, T2774EB, T8684EB, or T8694EB) and if you select
SGeRAC during upgrade from HP Serviceguard Storage Management Suite (SMS) cluster, then
this configuration is supported only if Oracle RAC is deployed over SLVM. This happens because
these Serviceguard SMS bundles either contain only VxVM which cannot be used for Oracle RAC
or they are not Oracle specific bundles.
If SGeRAC is not installed as a part of HP-UX 11i v3 1109 HA-OE/DC-OE, it is automatically
installed during the installation of Serviceguard SMS bundles (T2777DB, T8687DB, T8697DB,
T2777EB, T8687EB, T8697EB).
If SGeRAC is installed with HP-UX 11i v3 1109 HA-OE/DC-OE, then depending upon the available
version of Serviceguard and SGeRAC in the SMS bundle, the installation of Serviceguard SMS
may succeed or fail.
The table below discusses the different installation scenarios for Serviceguard SMS bundles:
Impact on Serviceguard SMS installationSMS bundle
Continues the installation of Serviceguard SMS by
skipping the installation of Serviceguard and
SGeRAC.
Install SMS bundle 7 which has the same version of Serviceguard
and SGeRAC version available on the 1109 HA-OE/DC-OE.
Installation of Serviceguard SMS follows installation
of a higher version of Serviceguard and SGeRAC.
Install Serviceguard SMS bundle 7 which has a higher version
of Serviceguard and SGeRAC version available on the 1109
HA-OE/DC-OE.
Installation of Serviceguard SMS fails indicating that
higher Serviceguard version is already available on
the system.
Install SMS bundle 7 which has a lower version of Serviceguard
and SGeRAC version available on the 1109 HA-OE/DC-OE.
Overview of SGeRAC and Oracle 10g, 11gR1, and 11gR2 RAC
Starting with Oracle 10g RAC, Oracle has bundled its own cluster software. The initial release is
called Oracle Cluster Ready Service (CRS). CRS is used both as a generic term referring to the
Oracle Cluster Software and as a specific term referring to a component within the Oracle Cluster
Software. At subsequent release, Oracle generic CRS is renamed to Oracle Clusterware. Oracle
Clusterware is the generic term referring to the Oracle Cluster Software.
The Oracle Cluster Software includes the following components: Cluster Synchronization Services
(CSS), Cluster Ready Service (CRS), and Event Management (EVM).
CSS manages the Oracle cluster membership and provides its own group membership service to
RAC instances. When installed on an SGeRAC cluster, CSS utilizes the group membership service
provided by SGeRAC.
CRS manages Oracle's cluster resources based on configuration—including start, stop, and monitor,
and failover of the resources.
EVM publishes events generated by CRS and may run scripts when certain events occur.
When installed on an SGeRAC cluster, both the Oracle Cluster Software and RAC can continue
to rely on the shared storage capability, networking monitoring, as well as other capabilities
provided through Serviceguard and SGeRAC.
16 Introduction to Serviceguard Extension for RAC