In UNIX file systems, devices are represented as special device files. By convention, device files reside in the /dev directory or a subdirectory of that directory; the UNIX kernel always honors device files stored in the /dev directory. However, the Cache Manager determines whether device files stored in filesets in the global namespace are honored. By default, the Cache Manager does not honor device files stored in filesets in the global namespace.
You can use the cm setdevok command to instruct the Cache Manager to honor device files stored on specific filesets. The command sets device file status on a per-fileset and per-Cache Manager basis. It is commonly included in a start-up file (/etc/rc or its equivalent) to honor device files at machine startup.
Use the cm getdevok command to determine whether the Cache Manager honors device files from specific filesets.
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