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Oracle10g Grid Computing with RAC
Chapter 8 - RAC Administration

Multi-Valued Parameters

By using the SET clause of the ALTER SYSTEM statement or by using the OEM (Oracle Enterprise Manager), you can change initialization parameter values for a given instance. Many of the changes can be made effective immediately. Optionally, they can be made persistent across reboot of the instance.

ASM Related Initialization Parameters

In Oracle Database 10g some initialization parameters have been modified that control the relationship of the RAC instance with the new Oracle Database 10g Automated Storage Management interface. The modified parameters are shown in table 8.4.




This parameter allows the specification of 10g ASM disk groups using a format similar to: +dgroup2, where dgroup2 is an existing ASM disk group mounted in the nodes ASM instance.


This parameter allows the specification of ASM disk groups for recovery files location using a format similar to:  +dgroup6, where dgroup6 is an existing ASM disk group mounted in the nodes ASM instance.


This parameter specifies the size area to reserve in the db_recovery_file_dest specified disk group for recovery files. An example setting would be: 5G where 5 is the integer size and "G" in this setting tells Oracle this is gigabytes. The use of K and M are also allowed for kilobytes and megabytes.

Table 8.4 ASM Initialization Parameters

The above text is an excerpt from:

Oracle 10g Grid & Real Application Clusters
Oracle 10g Grid Computing with RAC
ISBN 0-9744355-4-6

by Mike Ault, Madhu Tumma


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