If this directory ___location is part of the search string when Oracle ADVM volumes are present, negative interactions between the Oracle ADVM driver and its local Oracle ASM proxy instance can result.

Workaround:

Do not include the directory ___location used to store Oracle ADVM volumes in the specification of ASM_DISKSTRING. These volumes are for the use of the Oracle ACFS file system. The directory locations vary by operating system platform:

• For the Windows system, the directory is \Device\Asm.

• For other systems, it is /dev/asm.