manuais Quantum Travan 20 SCSI

Quantum Travan 20 SCSI Manual do Utilizador (70 páginas)

Marca: Quantum | Categoria: Unidades de fita magnética | Tamanho: 0.28 MB |

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Índice

STT20000N, STT20000N-C

1

SCSI Minicartridge Drives

1

(standard and NS-20 versions)

1

Product Manual

1

FCC Notice

3

Table of Contents

5

SCSI Interface 33

6

Tape format 45

7

Theory of operations 51

7

Glossary 57

7

Chapter 1 Introduction

10

Introduction Chapter 1

11

Features

12

Typical system configurations

13

Software

14

References

14

Flash EEPROM

14

About this manual

15

Specifications

17

Chapter 2 Specifications

18

Figure 2-1

18

Figure 2-2

18

Power specifications

19

Feature Specification

20

FastSense

20

Environmental requirements

21

Mean-Time-Between Failures

22

Mean-Time-To-Repair

22

Recommended tapes

23

Regulatory compliance

23

Installation

25

Setting jumpers

26

Installation Chapter 3

27

Figure 3-2

27

Jumper configurations

27

Chapter 3 Installation

28

Figure 3-3

28

Daisy-chain configurations

28

Installing the drive

29

Mounting dimensions

30

Cabling and connectors

31

Single-ended SCSI connector

33

DRIVE ACTIVE

35

Using Travan cartridges

36

Figure 4-4

37

Figure 4-5

37

Caring for tape cartridges

38

Capstan Tape Head

40

Introduction

41

SCSI-1 interface

41

SCSI-1 message codes

42

REQUEST

42

SCSI-1 commands

43

General features

44

Commands

44

SCSI-2 interface

45

SCSI-2 message codes

46

SCSI-2 commands

46

SCSI Interface Chapter 5

47

Code Type Command

47

V = Vendor Unique Command

48

SCSI-2 general features

48

SCSI-2 messages

49

SCSI-2 vendor-unique commands

49

Read-While-Write

50

Hardware data compression

51

Chapter 5 SCSI Interface

52

Tape format

53

Track numbering

54

Track format

54

Tape format Chapter 6

55

Figure 6-1

55

General track layout

55

Figure 6-2

55

General frame layout

55

Tape reference servo pattern

56

Write equalization

57

Randomization

57

Chapter 6 Tape format

58

Theory of operations

59

Figure 7-1a

60

Figure 7-1b

60

Cartridge load mechanism

61

Capstan drive motor assembly

61

Head design

62

Sensors and switches

62

Media (Travan minicartridges)

63

ALDC data compression

64

Glossary

65

Appendix A Glossary

66

Glossary Appendix A

67

Acronyms and abbreviations

68

Units of measurement

70

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