Quantum DLT-S4 Guía de usuario Pagina 354

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Chapter 4 SCSI Commands
RESERVE UNIT Command (16h)
DLT-S4 Interface Reference Guide 320
Table 177 RESERVE (10) ID
Only Parameter List — Data
Format
RESERVE UNIT Command (16h) 4
The RESERVE UNIT command reserves the specified tape drive for the
exclusive use of the requesting initiator or for another specified SCSI
device.
Figure 160 RESERVE UNIT
Command Descriptor Block
Data Format
Bit
7 6 5 4 3 2 1 0
Byte
0 — 7
(MSB)
Third Party Device ID
(LSB)
Note:
This command has been made obsolete in the latest version of
SCSI-3 and should not be used with any new implementations.
The tape drive supports this command for legacy applications
only.
Bit
7 6 5 4 3 2 1 0
Byte
0 Operation Code (16h)
1 Logical Unit Number 3rdPty Third Party Device ID Reserved
2 — 4 Reserved
5 Control
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