User's Manual

DLT4000 SCSI Interface

8-90 DLT4000/DLT4500/DLT4700 Cartridge Tape Subsystem

8.4.11 PREVENT/ALLOW MEDIUM REMOVAL (1Eh)

Bit

7 6 5 4 3 2 1 0

0 Operation Code (1Eh)

Logical Unit Number Reserved

Reserved

Byte Reserved

Prevent

5 Reserved Flag

Figure 8 56

This command enables or disables the unloading of the tape cartridge.

If this bit is set, the Unload button on the drive front panel is effectively disabled, and

the UNLOAD command will not unload the media or the cartridge. The

When the Prevent bit is set to zero, then the Prevent state corresponding to that

initiator is cleared. Only when all initiators have cleared their Prevent state are the

reset, or Bus Device Reset message, the Prevent Medium Removal function is cleared.

If a Media Loader is present, the Move Medium command will not be allowed to