Issue the cm getdevok command to determine whether the Cache Manager honors device files on specific filesets:
$ cm getdevok [-path {filename | directory_name}...]
The -path option specifies a file or directory from each fileset about which device file status information is to be displayed. Omit this option to display the status for the fileset containing the current working directory.
The output from this command includes one line for each specified fileset, stating either
· device files allowed, indicating that device files from the fileset are honored
· device files not allowed, indicating that device files from the fileset are not honored
· cm: the fileset on which 'pathname' resides does not exist, indicating that the pathname specified with the -path option is invalid