Datasheet

Using ASM Storage 33
ASM Numeric Filenames
The ASM numeric filename is a subset of the fully qualified filename, as you might have
noticed. The numeric filename for the fully qualified filename in the preceding section
would be
+sp_dgroup2.56.544956473
Alias ASM Filenames
An ASM alias filename takes on the following format:
+group_name/your_assigned_alias
In this case, if you assign the alias to the file when it’s created filenames might look like this:
+sp_dgroup2/ctrl_files/control_file_01
+sp_dgroup2/datafile/mydbf_user_data_01
Alias ASM Filenames with Templates
You can also reference an alias ASM filename with a template name. Simply include the
ASM template name in parentheses next to the alias-name definition, as shown here:
+sp_dgroup2/ctrl_files/control_file_01(special)
Incomplete ASM Filenames
There are times you will use an incomplete ASM filename. An ASM filename is incomplete
when the name of the ASM disk group is all that is referenced, as in this case:
+Sp_dgroup1
So, the incomplete ASM filename really is just a + followed by the disk group name. This
is the most commonly used ASM filename type because this type is used when defining
default destinations for database files (see more on that in the next section) in parameters,
creating tablespaces, or performing RMAN database backups.
Incomplete ASM Filenames with Templates
As with alias filenames, you can also reference a template in an incomplete filename defini-
tion, as shown here:
+sp_dgroup1(special_template)
95134c01.indd 33 1/28/09 9:43:45 AM