Using Serviceguard Extension for RAC, 10th Edition, April 2011

that support Veritas CFS and CVM). For more information, see “About Veritas CFS and CVM from
Symantec” (page 16)).
For information on configuring CFS and CVM with Serviceguard, refer to the latest edition of the
Managing Serviceguard user’s guide at www.hp.com/go/hpux-serviceguard-docs —>
HP Serviceguard.
Package Dependencies
When CFS is used as shared storage, the application and software using the CFS storage should
be configured to start and stop using Serviceguard packages. These application packages should
be configured with a package dependency on the underlying multi-node packages, which manages
the CFS and CVM storage reserves.
Configuring the application to be start/stop through Serviceguard package is to ensure the
synchronization of storage activation/deactivation and application startup/shutdown.
With CVM configurations using multi-node packages, CVM shared storage should be configured
in Serviceguard packages with package dependencies.
Refer to the latest edition of the Managing Serviceguard user’s guide for detailed information on
multi-node packages.
Storage Configuration Options
CFS provides SGeRAC with additional options, such as improved manageability. When planning
a RAC cluster, application software could be installed once and be visible by all cluster nodes. A
central location is available to store runtime logs, for example, RAC alert logs.
Oracle RAC data files can be created on a CFS, allowing the database administrator or Oracle
software to create additional data files without the need of root system administrator privileges.
The archive area can be on a CFS. Oracle instances on any cluster node can access the archive
area when database recovery requires the archive logs.
About Veritas CFS and CVM from Symantec
Veritas Cluster File System (CFS) and Cluster Volume Manager (CVM) are supported on some, but
not all current releases of HP-UX. Check the latest Release Notes for your version of Serviceguard
16 Introduction to Serviceguard Extension for RAC