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81-81276-01 Rev A01
July 2004
2-1
C
HAPTER
2
Chapter 2
General SCSI Bus Operation
2.1
Data Transfer
The tape drive supports both narrow and wide, asynchronous and synchronous data transfers. The
product is configured as a Low-Voltage Differential (LVD) or Single-Ended (SE) tape drive. The tape
drive generates parity (ODD) during all information transfer phases where the tape drive transfers data
onto the SCSI bus. The tape drive also checks parity during all information transfer phases where the
tape drive receives data from the SCSI bus.
The tape drive supports even block sizes of 2 bytes to (16 MB – 2) bytes.
Disconnects from the SCSI bus occur at regular intervals during a data transfer. This allows other tape
drives to access the bus. The Disconnect–Reconnect Mode Parameters page configures SCSI bus
disconnects.
2.2
Initiator/Target Operation
The tape drive does not act as an initiator on the SCSI bus. Therefore, the tape drive does not perform
any of the following tasks:
•
Generate unsolicited interrupts to the host
•
Initiate its own SCSI commands
•
Assert a bus reset.
Summary of Contents for DLT1/VS80 SCSI
Page 1: ...DLT1 VS80 SCSI Interface Guide...
Page 6: ...DLT1 VS80 SCSI Interface Guide vi July 2004 81 81276 01 Rev A01 Notes...
Page 12: ...Table of Contents xii July 2004 81 81276 01 Rev A01 Notes...
Page 16: ...List of Figures xiv July 2004 81 81276 01 Rev A01 Notes...
Page 20: ...List of Tables xviii July 2004 81 81276 01 Rev A01 Notes...
Page 24: ...Chapter 1 Introduction 1 4 July 2004 81 81276 01 Rev A01 Notes...
Page 32: ...Chapter 2 General SCSI Bus Operation 2 8 July 2004 81 81276 01 Rev A01 Notes...
Page 42: ...Chapter 3 SCSI Messages 3 10 July 2004 81 81276 01 Rev A01 Notes...
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