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In general, a backup device cannot be shared. Only one person
at a time can use it. Often, users cannot access media drives without
your assistance because media drives may be in a restricted computer
room or you may be required to monitor media drive use.
Users only have direct access to media drives when you provide
them physical access and configure media drives so that they are
automatically assigned to users. See "Automatically Assigning Devices,"
later in this chapter.
When a user (or a program) requests the use of a media drive
and the device is available, you mount the media so that the storage
or Restore process can begin. You mount the media by preparing it,
loading it onto the media drive, and placing the media drive online.
To prepare a backup device for storing or restoring files,
use the media from the user you are helping (or obtain it from your
media library) and mount it on the device.
When the media is ready, you see a VOLUME MOUNTED message on the
console. For example:
16:05/31/VOL (Unlabeled) mounted on LDEV#8
The VOLUME MOUNTED message indicates the logical device (LDEV) number
of the media drive. In the example above, the LDEV number is 8.
Note the LDEV number. You use it to assign the device to STORE or
RESTORE when you respond to the media request.
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