When setting the values for the disk group attributes, specify at least the major and minor versions of a valid Oracle Database release number. For example, you can specify compatibility as '11.2' or '12.1'; Oracle assumes that any missing version number digits are zeros.
Table 4-2 shows some valid combinations of the disk group compatibility attributes and the valid Oracle ASM and database instance versions for each combination.
Table 4-2 Examples of disk group compatibility attribute settings
| COMPATIBLE.ASM | COMPATIBLE.RDBMS | COMPATIBLE.ADVM | Oracle ASM Instance Version | COMPATIBLE Setting for RDBMS Instance |
|---|---|---|---|---|
|
10.1 |
10.1 |
n/a |
>= 10.1 |
>= 10.1 |
|
11.1 |
10.1 |
n/a |
>= 11.1 |
>= 10.1 |
|
11.2 |
11.2 |
11.2 |
>= 11.2 |
>= 11.2 |
|
12.1 |
12.1 |
12.1 |
>= 12.1 |
>= 12.1 |
These are some possible combinations of Oracle ASM and database releases:
The database release is Oracle Database 11g Release 2 (11.2) (database initialization parameter COMPATIBLE is set to 11.2) and the Oracle ASM release is Oracle ASM 11g Release 2 (11.2). The COMPATIBLE.ASM and COMPATIBLE.RDBMS disk group attributes are set to 10.2 for a disk group.
The Oracle ASM disk group functionality remains at Oracle Database 10g Release 2 (10.2).
The database release is Oracle Database 10g Release 1 (10.1) and the Oracle ASM release is 11.2. COMPATIBLE.ASM is set to 11.2 and COMPATIBLE.RDBMS is set to 10.1 for a disk group.
The disk group features enabled for this combination of attribute settings are shown in Table 4-3.
The database release is Oracle Database 12c Release 1 (12.1) (database initialization parameter COMPATIBLE is set to 12.1) and the Oracle ASM release is Oracle ASM 12c Release 1 (12.1). All the disk group compatibility attributes are set to 12.1 for a disk group.
The disk group features enabled for this combination of attribute settings are shown in Table 4-3.