Does any one know or is there any way to find out if my database is using direct I/O on Veritas File system from oracle database. File system is already mounted with direct IO option and filesystemio_options is set to setall.

I followed this metalink document : 555607.1, i got the truss output which has no meaning to it( even as per oracle support could not help on it)

here is the ouput i got.
21919/1: ioctl(326, 0x0403, 0xFFFFFFFF7FFFD04C) Err#25 ENOTTY

The last column supposed to be either 0 or 1 , but i got different results. so that document i followed seems to not useful.

Any help on this greatly appreciated.