Quantum Audio Travan 40 Tape Drive STT3401A - Manual (Page 74)

Chapter 5 ATAPI Interface
Page 66 Seagate Travan 40 Product Manual
PREVENT/ALLOW MEDIA REMOVAL (Group 0, Op. Code 1E)
This command is used to prevent or allow the removal of the tape cartridge.
CDB for PREVENT/ALLOW MEDIA REMOVAL Command
Data Bits
Byte 7 6 5 4 3 2 1 0 Hex
0 0 0 0 1 1 1 1 0 1E
1 0 0 0 0 0 0 0 0 00
0 0 0 0 0 0 0 0 0 00
3 0 0 0 0 0 0 0 0 00
0 0 0 0 0 0 0 0 PRE 0X
5 0 0 0 0 0 0 0 0 00
PRE: When set to 0, an ALLOW command is indicated. Following this command,
cartridge unloading via the front panel Eject button or the UNLOAD command is
allowed.
When set to 1, a PREVENT command is indicated. Following this command, an
UNLOAD command or an Eject button push will be rejected. An UNLOAD command
will be terminated with Check Condition Status. The Sense Key will be set to 5h
(Illegal Request), and the ASC and ASCQ codes will be set to 53/02h (Media
Removal Prevented). This command is canceled by a hard reset or a
PREVENT/ALLOW command with the PRE bit set to 0. The drive does not
disconnect from the Initiator while executing this command. A PREVENT command
can be cleared by an ALLOW command only if sent by the same Initiator.