Datasheet
Using ASM Storage
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Using ASM Storage
We have discussed management of an ASM instance. This section covers how to actually
use ASM from an Oracle instance. You can put all sorts of Oracle-related files into an
ASM instance, including these:
Oracle datafiles
Database tempfiles
Online redo logs
Archived redo logs
Control files
Spfiles
RMAN backup sets
The flash recovery area (FRA)
Data-pump dump sets
When you create one of these objects, you can decide to create it in an ASM disk group.
You can also define default file-creation locations that point to ASM disk groups. Finally,
you can mix and match the use of ASM and cooked file systems if you prefer. In the follow-
ing sections, we will review these topics:
Defining what ASM files are
Defining ASM as the default destination for database files
Creating a tablespace using an ASM disk group as the destination
Creating a control file in an ASM disk group location
Creating spfiles or parameter files on an ASM disk group
Creating online redo logs in an ASM disk group location
Defining an ASM disk group location as an archived redo-log storage area
Creating RMAN backup sets on an ASM disk
Defining an ASM disk group as the location for the FRA
What Are ASM Files?
We have already created ASM disk groups. To actually use the ASM disk groups, we have
to populate them with ASM files. In this section, we will discuss what ASM files are and
then we will discuss the different kinds of ASM filenames that you might deal with.
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