You can view the disk group compatibility settings in the V$ASM_ATTRIBUTE view. However, the V$ASM_ATTRIBUTE view does not display any rows when the COMPATIBLE.ASM value is set to 10.1. Instead you can determine the values for the COMPATIBLE.ASM and COMPATIBLE.RDBMS disk group compatibility attributes with the COMPATIBILITY and DATABASE_COMPATIBILITY columns of the V$ASM_DISKGROUP view.
See Example 6-1 for an example querying the V$ASM_ATTRIBUTE view.
You can also display the disk group compatibility attributes with the ASMCMD command lsattr. For information about lsattr, see "lsattr".
Oracle Database SQL Language Reference for information about disk group attributes
Oracle Database Reference for details on the V$ASM_DISKGROUP and V$ASM_ATTRIBUTE dynamic performance views