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SCSI Commands
Quantum DLT 7000 Tape System
5-127
5.11
PREVENT / ALLOW MEDIUM REMOVAL COMMAND (1Eh)
This command enables or disables the unloading of the tape cartridge.
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (1Eh)
1
Logical Unit Number
Reserved
2 - 3
Reserved
4
Reserved
Prevent
5
Unused
Reserved
Flag
Link
Figure 5–60 PREVENT / ALLOW MEDIUM REMOVAL Command Descriptor Block -
Data Format
Table 5–60 PREVENT / ALLOW MEDIUM REMOVAL Command Descriptor Block -
Field Descriptions
Field Name
Description
Prevent
When set to 1, the UNLOAD button on the drive’s front panel is effectively
disabled, and the UNLOAD command does not unload the tape medium or the
cartridge. The PREVENT / ALLOW status in the device is maintained separately by
each initiator.
When set to 0, the prevent state corresponding to that initiator is cleared. When all
initiators have cleared their prevent states, the UNLOAD button and UNLOAD
commands are enabled. By default, after power up, a hard reset, or Bus Device
Reset message, the prevent medium removal function is cleared.
If a Media Loader device is present, its MOVE MEDIUM command is prevented
from removing a cartridge if PREVENT has been enabled.
Summary of Contents for DLTtape DLT 7000
Page 1: ...DLT 7000 Tape System Product Manual November 10 2003 81 60000 06...
Page 5: ...USER MANUAL STATEMENTS FOR CLASS B EQUIPMENT continued...
Page 6: ......
Page 38: ...General Description and Specifications 1 14 Quantum DLT 7000 Tape System...
Page 292: ...Appendix C Updating the Firmware C 6 Quantum DLT 7000 Tape System...
Page 310: ...Index Index 6 Quantum DLT 7000 Tape Drive...
Page 311: ......