5-2
SCSI Configuration
500300 Rev. U
5.1.1
SCSI Device ID (Default = 5)
This parameter allows you to define a SCSI Device ID from 0 to 7. The SCSI ID is
independent of the drive's physical location on the SCSI bus, and depends upon the
desired priority for the drive in the system. SCSI ID 0 is the lowest priority, and
SCSI ID 7 is the highest. If more than one device on the SCSI bus have the same
SCSI ID, the system will operate in an unpredictable manner.
Do not confuse the SCSI Device ID parameter with the Drive Address parameter in
the Drive Configuration menu. The Drive Address parameter must be set to 0 for
SCSI operation. See also Section 4.3.2.11.
5.1.2
SCSI LUN (Default = 0)
This parameter determines to which SCSI Logical Unit Number the drive will
answer. Selecting
ALL
causes the drive to respond to all SCSI Logical Unit Numbers.
Do not confuse the SCSI LUN parameter with the Drive Address parameter in the
Drive Configuration menu. The Drive Address parameter
must
be set to 0 for SCSI
operation. See also Section 4.3.2.11.
5.1.3
SCSI Parity (Default = Off)
This parameter refers to the parity on the SCSI bus and not the parity recorded on
the tape.
NOTE
If one device on the SCSI bus is configured to support parity, all other devices on that SCSI bus
must also be configured to support parity, and vice versa.
5.1.4
SCSI Sync (Default = On)
Two modes of data transfer are possible: synchronous and asynchronous. Deciding
which mode to use is a matter of initiator/target negotiation.
•
ON
- If the initiator selects the synchronous mode, the drive will transfer data in
the synchronous mode;
•
OFF
- If the initiator selects the synchronous mode, the drive will inform the
initiator that it will not operate in the synchronous mode, and will instead
operate in the asynchronous mode.
5.1.5
Space (Default = Normal)
Issuing a Read or Read Reverse command places the drive in the Read mode. When
in the Read mode, the drive may or may not perform a read-ahead operation,
depending upon the setting of the Read Ahead option (see Section 5.1.23 for details
on this option). Issuing a Write command to the drive places it in the Write mode,