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

Compatibility Information and Installation Requirements
Read this entire document and any other Release Notes or READMEs you may have
before you begin an installation.
Types of Releases and Patches
Versions of Serviceguard Extension for RAC are provided as platform releases, feature
releases, or patches.
Platform Release
A platform release is a stable version of the product, which is the preferred environment
for the majority of customers. Platform releases may also contain new features. These
releases are supported for an extended period of time, determined by HP. Patches will
be made available within the extended support time frame even though a newer version
of the product is available.
Feature Release
A feature release contains new product features. Feature releases are for customers
who desire to use the latest features of the product. In general, feature releases will be
supported until a newer version becomes available. In order to receive fixes for any
defects found in a feature release after a newer version is released, the customer will
need to upgrade to the newer, supported version.
Patch
A patch to a release is issued in response to a critical business problem found by a
customer. With a patch, the following is guaranteed:
• Patch-specific release testing is performed prior to posting the patch.
• Existing functionality, scripts, etc...., will continue to operate without modification.
• All fixes from the previous patch are incorporated.
For a patch, certification testing is recommended only for those fixes that are important
to the customer.
Serviceguard Extension for RAC Compatibility with HP-UX and Oracle Releases
For the most up-to-date compatibility information, see the
Serviceguard/SGeRAC/SMS/Serviceguard Mgr Plug-in Compatibility and Feature Matrix at
http://docs.hp.com -> High Availability -> Serviceguard -> Support Matrixes
Compatibility Information and Installation Requirements 21