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Automatic Unmounting
====================
To avoid an ever increasing number of filesystem mounts, Amd removes
volume mappings which have not been used recently. A time-to-live
interval is associated with each mapping and when that expires the
mapping is removed. When the last reference to a filesystem is removed,
that filesystem is unmounted. If the unmount fails, for example the
filesystem is still busy, the mapping is re-instated and its
time-to-live interval is extended. The global default for this grace
period is controlled by the "-w" command-line option (see -w: -w Option.). It is also possible to set this value on a per-mount basis
(see opts: opts Option.).
Filesystems can be forcefully timed out using the Amq command.
See Run-time Administration.
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