Serviceguard Extension for RAC Version A.11.18 Release Notes, 3rd Edition, April 2008

options supported in the Serviceguard and SGeRAC environment.The framework
provided by the SGeRAC toolkit is unique in the high level of multi-vendor (Oracle,
Symantec, HP) and multi-storage platform (CFS, SLVM, CVM, ASM over SLVM)
integration it offers.
SGeRAC toolkit uses the multi-node package and simple package dependency features
integrated with HP Serviceguard and SGeRAC version A.11.18, which provides a
uniform, easy-to-manage and intuitive method to coordinate the operations of the
SGeRAC and Oracle Clusterware combined software stack. The toolkit is supported
across the full range of storage management options supported by SGeRAC: CFS,
SLVM, CVM and ASM (over SLVM).For software download and product information,
refer to the following:
• Use of Serviceguard Extension for RAC Toolkit with Oracle 10g RAC white paper located
at http://docs.hp.com -> High Availability -> Serviceguard Extension for Real
Application Clusters -> White Papers.
• README file that accompanies the SGeRAC Toolkit. To view go to
/opt/cmcluster/SGeRAC/toolkit/README after the installation.
• For software download information on the SGeRAC Toolkit, go
tohttp://software.hp.com.
NOTE: Modular packages are not yet supported in the SGeRAC Toolkit.
Support for 8192 Oracle Server Processes for Oracle 9i, 10gR2 and 11gR1 RAC
The maximum number of Oracle server processes cmgmsd can handle is 8192. When
there are more than 8192 server processes connected to cmgmsd, it will start to reject
new requests. Oracle foreground server processes are needed to handle the requests
of the Data Base (DB) client connected to the DB instance.
NOTE: Starting with Oracle 10g and later, Oracle Clusterware processes register with
cmgmsd while Oracle server processes register with Oracle Clusterware. The maximum
number of Oracle server processes supported is determined by Oracle Clusterware.
The maximum number of processes registered by Oracle Clusterware should not exceed
the maximum supported by cmgmsd.
Serviceguard Extension for RAC does not support Mixed Clusters
For SGeRAC, the nodes in the cluster must be on the same architecture. SGeRAC does
not support clusters containing mixed architectural nodes, which consist of HP 9000
and HP Integrity servers, or different operating system releases.
About Device Special Files (DSFs)
HP-UX releases up to and including 11i v2 use a naming convention for device files
that encodes their hardware path. For example, a device file named
What’s in this Version 17