PRIMECLUSTER Wizard for Oracle Configuration and Administration Guide 4.2 - Linux for Itanium -

3.1.2 Oracle RAC 10g Scalable Operation

In Oracle RAC 10g, the Oracle instances and listeners are automatically started, monitored, and recovered through the Oracle Clusterware. If PRIMECLUSTER Wizard for Oracle detects a resource failure, it will notify RMS of the "Warning" state then ask Oracle Clusterware to generate a failover or recover the failed resource (depending on the WFTime setting).

Also, the resources are started or stopped along with userApplication startup and stop.

Oracle RAC instance startup

Start an Oracle RAC instance as follows:

1. su - <Oracle user>
2. srvctl start instance -d $DB_NAME -i $ORACLE_SID

Oracle RAC instance stop

Stop an Oracle RAC instance as follows:

1. su - <Oracle user>
2. srvctl stop instance -d $DB_NAME -i $ORACLE_SID

Oracle RAC instance monitoring

The Oracle monitoring setup is the same as standby operation. However, the monitoring interval is 60 seconds and cannot be changed.

For details, refer to "Oracle monitoring" of "3.1.1 Standby Operation".

Listener startup

Start a Listener as follows:

1. su - <Oracle user>
2. srvctl start listener -n $NODE_NAME -l $LSNR_NAME

Listener shutdown

Listener stop depends on Oracle Clusterware, not PRIMECLUSTER Wizard for Oracle.

Listener monitoring

The Oracle monitoring setup is the same as standby operation.

However, the monitoring interval is fixed at 60 seconds, and tnsping monitoring is not performed.

For details, refer to "Oracle monitoring" of "3.1.1 Standby Operation".

Oracle Clusterware startup

Start Oracle Clusterware as follows:

1. /etc/init.d/init.crs start
2. Check if Oracle Clusterware is activated using crs_stat -t.

Oracle Clusterware stop

Stop Oracle Clusterware as follows:

1. /etc/init.d/init.crs stop

Oracle Clusterware monitoring

PRIMECLUSTER Wizard for Oracle does not monitor Oracle Clusterware. NullDetector flag is automatically enabled.

• Oracle listeners are started or stopped through Oracle Clusterware. The other resources such as vip, gsd, and ons are also started or stopped.
• If you want to startup, stop, or switch Oracle instances, execute hvswtich and hvutil on RMS userApplication. If you execute the Oracle Clusterware srvctl command or shutdown command to the Oracle instance directly, PRIMECLUSETR will consider that the instance fails, and recovery processing might be initiated for the Oracle instance. To executing the command, put userApplication into maintenance mode.