HP Enterprise Cluster Master Toolkit User Guide (5900-2131, December 2011)

If you are using LVM or VxVM
Follow the instructions in the chapter Building an HA Cluster Configuration in the manual Managing
ServiceGuard manual available at http://www.hp.com/go/hpux-serviceguard-docs —>HP
Serviceguard to create a logical volume infrastructure on a shared disk. The disk must be available
to all clustered nodes that will be configured to run this database instance. Create a file system to
hold the necessary configuration information and symbolic links to the Oracle executables. This
file system will be used as ORACLE_HOME in the package control scripts. Since the volume group
and file system have to be uniquely named within the cluster, use the name of the database instance
($SID_NAME) in the name. Assuming the name of the database is 'ORACLE_TEST0', follow the
instructions in the manual Building an HA Cluster Configuration in the manual Managing
ServiceGuard manual available at http://www.hp.com/go/hpux-serviceguard-docs —>HP
Serviceguard to create the following:
LVM
----
/dev/vg0_ORACLE_TEST0 (the volume group)
/dev/vg0_ORACLE_TEST0/lvol1 (the logical volume)
/dev/vg0_ORACLE_TEST0/lvol1 (the filesystem)
mounted at /ORACLE_TEST0
VxVM
-----
/dev/vx/dsk/DG0_ORACLE_TEST0 (the disk group)
/dev/vx/dsk/DG0_ORACLE_TEST0/lvol1 (the logical volume)
/dev/vx/dsk/DG0_ORACLE_TEST0/lvol1 (the filesystem)
mounted at /ORACLE_TEST0
If you are using CFS
Make sure that the Serviceguard CFS packages are running in order for the Oracle package to
access CFS mounted file systems. See Serviceguard Manual for information on how to configure
Servicegaurd CFS packages. Create a directory /ORACLE_TEST0 on all cluster nodes. Mount the
CFS file system on /ORACLE_TEST0 using the Servicegurad CFS packages. Use /ORACLE_TEST0
to hold the necessary configuration information and symbolic links to the Oracle executables.
• Assuming Oracle is installed in /home/oracle, create symbolic links to all subdirectories
under /home/oracle with the exception of the dbs directory (dbs contains important instance
configuration files, and should reside in the shared storage in ${SID_NAME}, example,
/ORACLE_TEST0/dbs).
• Test the setup to ensure Oracle can be properly brought up. Log on as 'oracle' user. Set
environment variables ORACLE_HOME to /home/oracle and ORACLE_SID to ORACLE_TEST0.
Test Oracle to ensure that it can be properly started.
$ sqlplus '/ as sysdba'
SQL> startup
SQL> exit
After few minutes, check for the existence of Oracle processes (there should be several,
identified by "ora_")
$ ps -fu oracle
Bring the database down,
$ sqlplus '/ as sysdba'
SQL> shutdown immediate
SQL> exit
If you are using LVM - unmount and deactivate the volume group,
$ umount /ORACLE_TEST0
$ vgchange -a n /dev/vg0_ORACLE_TEST0
20 Using the Oracle Toolkit in an HP Serviceguard Cluster