unmount - Unmount disk devices
unmount device …
Unmount removes the selected disk devices from the operating system’s active device list. This has the effect of making a volume temporarily disappear.
A device argument consists of a slot and drive specifier (e.g. 5.1 or 5,1 for slot 5, drive 1), or the name of the volume to unmount. If only a slot is given, unmount attempts to unmount the devices in both drives for that slot.
unmount /foo /bar
Unmounts the volumes /foo and /bar.
unmount 3.2 /ram5 6
Unmounts the volumes in slot 3, drive 2, /ram5, and both volumes in slot 6.
Unmount maintains information for each unmounted volume in a resource file. This information is used by mount in order to put unmounted volumes back online.
“volume not online” — the volume specified is not presently online.
“cannot unmount active device” — devices in use by the ProLine filesystem may not be unmounted.
“no volume mounted on device” — no volume exists on the specified device.