94 Commands
PREVENT/ALLOW MEDIUM REMOVAL 1Eh
PREVENT/ALLOW MEDIUM REMOVAL tells the drive to enable or disable the
removal of the cartridge.
When cartridge removal is prevented, the front panel eject button is completely
disabled (though a ‘forced eject’ will still work). An Unload command issued
by a host will result in
CHECK CONDITION. The sense key will be ILLEGAL
REQUEST
or MEDIUM REMOVAL PREVENTED.
When cartridge removal is enabled, pressing the front panel eject button or
sending an Unload command from a host will cause the media to be unloaded
and ejected.
Removal prevention is on a per-host basis. All the hosts have to allow media
removal for any of them to do so.
Note If a firmware upgrade is initiated over any interface, the
cartridge will be ejected from the drive regardless of the state of
this command.
Pre-Execution Checks:
Command Descriptor Block:
CDB Fields:
Illegal Field Reservation Deferred Error Unit Attention
7 6 5 4 3 2 1 0
0
Operation Code (1Eh)
1–3
Reserved (0)
4
Reserved (0) Prevent
5
Control
Prevent 00b Medium removal is allowed for the drive
01b Media removal is prohibited for the drive
10b, 11b Invalid
