HP Serviceguard Enterprise Cluster Master Toolkit User Guide, December 2012 (5900-2145)

NOTE: If you decide to store the configuration information on a local disk and propagate
the information to all nodes, ensure that pfile/spfile, the password file, and all control files
and data files are on shared storage. For this set up, you must set up symbolic links to the
pfile and the password file from /home/oracle/dbs as follows:
ln -s /ORACLE_TEST0/dbs/initORACLE_TEST0.ora \
${ORACLE_HOME}/dbs/initORACLE_TEST0.ora
ln -s /ORACLE_TEST0/dbs/orapwORACLE_TEST0.ora \
${ORACLE_HOME}/dbs/orapwORACLE_TEST0.ora)
• Multiple Instance Configuration
If multiple instances are running in the same cluster, repeat the preceding steps for each
instance. For example, if a second instance (ORACLE_TEST1) is to be included in the
configuration, you must do the following:
◦ For LVM
Create a second volume group (for example, /dev/vg0_ORACLE_TEST1), logical
volume, and filesystem with mount point (/ORACLE_TEST1) for the second instance.
All configuration information for ORACLE_TEST1 resides in /ORACLE_TEST1/dbs.
Similar to ORACLE_TEST0, symbolic links must be created for all subdirectories (other
than /ORACLE_TEST1/dbs/), to link /ORACLE_TEST1 to /home/oracle.
◦ For VxVM
Create a second disk group (for example, /dev/vx/dsk/DG0_ORACLE_TEST1),
logical volume, and filesystem with mount point (/ORACLE_TEST1) for the second
instance. All configuration information for ORACLE_TEST1 resides in
/ORACLE_TEST1/dbs. Similar to ORACLE_TEST0, symbolic links must be created
for all subdirectories (other than /ORACLE_TEST1/dbs/), to link /ORACLE_TEST1
to /home/oracle.
◦ For CFS
Create another directory /ORACLE_TEST1. Another CFS file system is now been
mounted on /ORACLE_TEST1 by the Serviceguard CFS packages. All configuration
information for ORACLE_TEST1 resides in /ORACLE_TEST1/dbs. Similar to
ORACLE_TEST0, symbolic links must be created for all subdirectories (other than
/ORACLE_TEST1/dbs/), to link /ORACLE_TEST1 to /home/oracle.
This configuration makes it possible to run several Oracle instances on one node,
facilitating failover or failback of Oracle packages between nodes in the cluster.
• Set up for Oracle 10g/11g single-instance database:
For LVM or VxVM (supported on Oracle 10gR2 and 11g only):
For nodes that run only one database instance, install Oracle completely on the
shared volume or file system (or ORACLE_TEST0, in our example). This process
◦
simplifies the configuration because no symbolic links are required. In this case, all
Oracle binaries and configuration is migrated to the standby node on failover.
12 Using the Oracle Toolkit in an HP Serviceguard Cluster