Oracle Tips by Burleson

Oracle10g Grid Computing with RAC
Chapter 8 - RAC Administration

Starting the database in Cluster mode

To launch the subsequent instances on other nodes, use the same startup commands shown above with SQL*plus. Since the first instance is already running, the subsequent instances join the clustered database.

Administering ASM Instances with SRVCTL in RAC

Automated Storage Management (ASM) in Oracle Database 10g allows the use of Oracle centric disk management for Oracle related files. The ASM uses an Oracle instance to provide an interface into a set of raw volumes which Oracle then administers as a disk group.

The Server Control Utility (SRVCTL) can be used to add, remove, enable, and disable an ASM instance, let's look at some quick examples of managing the ASM environment with SRVCTL.

Use the following syntax to add configuration information about an existing ASM

instance:

srvctl add asm -n <node_name> -i <asm_instance_name> -o <oracle_home>