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

For more information, refer to your version of the Serviceguard Extension for RAC Release Notes
and HP Serviceguard Storage Management Suite Release Notes located at
www.hp.com/go/hpux-serviceguard-docs.
CAUTION: Once you create the disk group and mount point packages, you must administer the
cluster with CFS commands, including cfsdgadm, cfsmntadm, cfsmount, and cfsumount.
You must not use the HP-UX mount or umount command to provide or remove access to a shared
file system in a CFS environment. Using these HP-UX commands under these circumstances is not
supported. Use cfsmount and cfsumount instead.
If you use the HP-UX mount and umount commands, serious problems could occur, such as writing
to the local file system instead of the cluster file system. Non-CFS commands could cause conflicts
with subsequent CFS command operations on the file system or the Serviceguard packages, and
will not create an appropriate multi-node package—cluster packages will not be aware of file
system changes.
Creating an SGeRAC Cluster with CFS for Oracle 11gR1 or 11gR2
The following software needs to be pre-installed in order to use this configuration.
NOTE: If you are installing CFS 4.1 or higher version with either the Storage Management Suite
(SMS) bundle or Mission Critical Operating Environment (MCOE), High Availability Operating
Environment (HAOE), or Data Center Operating Environment (DCOE), use the appropriate product
number as described in the HP Serviceguard Storage Management Suite Release Notes.
With CFS, the database software and database files (control, redo, data files), and archive logs
may reside on a cluster file system that is visible by all nodes.
In the example below, both the Oracle RAC software and datafiles reside on CFS. There is a single
Oracle home. Three CFS file systems are created for Oracle home, Oracle datafiles, and for the
Oracle Cluster Registry (OCR) and vote device. The Oracle Cluster Software home is on a local
file system.
/cfs/mnt1 – for Oracle Base and Home
/cfs/mnt2 – for Oracle datafiles
/cfs/mnt3 - for OCR and Vote device
Initializing the Veritas Volume Manager
Use the following steps to create a two node SGeRAC cluster with CFS and Oracle:
1. Initialize the Veritas Volume Manager.
NOTE: CVM 5.x or later does not require rootdg.
2. Create the cluster ASCII file:
# cd /etc/cmcluster
# cmquerycl -C clm.asc -n ever3a -n ever3b
Edit the cluster file.
3. Create the cluster:
# cmapplyconf -C clm.asc
4. Start the cluster:
# cmruncl
# cmviewcl
The following output will be displayed:
CLUSTER STATUS
ever3_cluster up
48 Serviceguard Configuration for Oracle 10g, 11gR1, or 11gR2 RAC