The vxtunefs command can be used to determine whether Cached Quick I/O is enabled or disabled by displaying the qio_cache_enable flag.
To display only the qio_cache_enable flag setting, run the following command:
#/usr/lib/fs/vxfs/vxtunefs / | grep qio_cache_enable
To determine if Cached Quick I/O is set on the file system database:
#/usr/lib/fs/vxfs/vxtunefs /database | grep qio_cache_enable
qio_cache_enable = 1
If the qio_cache_enable flag is set to 1, then Cached Quick I/O is enabled for the file system.
If the qio_cache_enable flag is set to 0, then Cached Quick I/O is disabled for the file system.