Manuali utente per Seagate ST318438LW

Sommario

• 1.0 Scope 1

  7
• 2.0 Applicable standards and reference documentation 3

  7
  • 2.1 Standards 3

    7
    • 2.1.1 Electromagnetic compatibility 3

      7
    • 2.1.2 Electromagnetic susceptibility 3

      7
  • 2.2 Electromagnetic compliance 3

    7
  • 2.3 Reference documents 4

    7
• 3.0 General description 5

  7
  • 3.1 Standard features 6

    7
  • 3.2 Media characteristics 6

    7
  • 3.3 Performance 6

    7
  • 3.4 Reliability 6

    7
  • 3.5 Unformatted and formatted capacities 7

    7
  • 3.6 Programmable drive capacity 7

    7
  • 3.7 Factory installed accessories 7

    7
  • 3.8 Options (factory installed) 7

    7
• 4.0 Performance characteristics 8

  7
  • 4.1 Internal drive characteristics (transparent to user) 8

    7
  • 4.2 SCSI performance characteristics (visible to user) 8

    7
    • 4.2.1 Access time 8

      7
    • 4.2.2 Format command execution time (minutes) 8

      7
    • 4.2.3 Generalized performance characteristics 8

      7
  • 4.3 Start/stop time 9

    7
  • 4.4 Prefetch/multi-segmented cache control 9

    7
  • 4.5 Cache operation 10

    7
    • 4.5.1 Caching write data 10

      7
    • 4.5.2 Prefetch operation 11

      7
• 5.0 Reliability specifications 13

  7
  • 5.1 Error rates 13

    7
    • 5.1.1 Environmental interference 13

      7
    • 5.1.2 Read errors 13

      7
    • 5.1.3 Write errors 13

      7
    • 5.1.4 Seek errors 13

      7
  • 5.2 Reliability and service 14

    7
    • 5.2.1 Mean time between failure 14

      7
    • 5.2.2 Preventive maintenance 14

      7
    • 5.2.3 Service life 14

      7
    • 5.2.4 Service philosophy 14

      7
    • 5.2.5 Service tools 14

      7
    • 5.2.6 Hot plugging Barracuda 36ES2 disc drives 15

      7
    • 5.2.7 S.M.A.R.T. 15

      7
    • 5.2.8 Drive Self Test (DST) 16

      7
      • 5.2.8.1 DST Failure Definition 17

        7
      • 5.2.8.2 Implementation 17

        7
    • 5.2.9 Product warranty 18

      7
• 6.0 Physical/electrical specifications 21

  7
  • 6.1 AC power requirements 21

    7
  • 6.2 DC power requirements 21

    7
    • 6.2.1 Conducted noise immunity 22

      7
    • 6.2.2 Power sequencing 22

      7
    • 6.2.3 12 V - Current profile 22

      7
  • 6.3 Power dissipation 24

    7
  • 6.4 Environmental limits 26

    7
    • 6.4.1 Temperature 26

      8
    • 6.4.2 Relative humidity 27

      8
    • 6.4.3 Effective altitude (sea level) 27

      8
    • 6.4.4 Shock and vibration 27

      8
      • 6.4.4.1 Shock 27

        8
      • 6.4.4.2 Vibration 29

        8
    • 6.4.5 Air cleanliness 29

      8
    • 6.4.6 Acoustics 29

      8
    • 6.4.7 Electromagnetic susceptibility 29

      8
  • 6.5 Mechanical specifications 30

    8
• 7.0 Defect and error management 33

  8
  • 7.1 Drive internal defects 33

    8
  • 7.2 Drive error recovery procedures 33

    8
  • 7.3 SCSI systems errors 34

    8
• 8.0 Installation 35

  8
  • 8.1 Drive ID/option select header 35

    8
    • 8.1.1 Notes for Figures 14 through 18 40

      8
    • 8.1.2 Function description 41

      8
    • 8.1.3 Drive orientation 42

      8
  • 8.2 Cooling 42

    8
    • 8.2.1 Air flow 42

      8
  • 8.3 Drive mounting 43

    8
  • 8.4 Grounding 43

    8
• 9.0 Interface requirements 45

  8
  • 9.1 General description 45

    8
  • 9.2 SCSI interface messages supported 45

    8
  • 9.3 SCSI interface commands supported 46

    8
    • 9.3.1 Inquiry Vital Product data 50

      8
    • 9.3.2 Mode Sense data 52

      8
  • 9.4 SCSI bus conditions and miscellaneous features supported 55

    8
  • 9.5 Synchronous data transfer 57

    8
    • 9.5.1 Synchronous data transfer periods supported 57

      8
    • 9.5.2 REQ/ACK offset 57

      8
  • 9.6 Physical interface 57

    8
    • 9.6.1 DC cable and connector 57

      8
    • 9.6.2 SCSI interface physical description 60

      8
    • 9.6.3 SCSI interface cable requirements 60

      8
    • 9.6.4 Mating connectors 61

      8
      • 9.6.4.1 Mating connectors for N model drives 61

        8
      • 9.6.4.2 Mating connectors for LW model drives 63

        8
  • 9.7 Electrical description 68

    8
    • 9.7.1 Multimode—SE and LVD alternatives 68

      8
      • 9.7.1.1 Single-ended drivers/receivers for N models 70

        8
      • 9.7.1.2 Single-ended drivers/receivers for LW models 70

        8
      • 9.7.1.3 Low voltage differential I/O circuits 71

        8
      • 9.7.1.4 General cable characteristics 71

        8
  • 9.8 Terminator requirements 72

    8
  • 9.9 Terminator power 72

    8
  • 9.10 Disc drive SCSI timing 73

    8
  • 9.11 Drive activity LED 74

    8
• 10.0 Seagate Technology support services 75

  8
• Figure 1. Barracuda 36ES2 family drive (ST336938LW shown) 1

  9
• Figure 2. Typical ST336938/ST336918/ST318438/ST318418 drive +12 V current profile 22

  9
• Figure 3. Typical ST336938/ST336918/ST318438/ST318418 drive +5 V current profile 23

  9
• Figure 4. ST336938/ST318438 DC current and power vs. input/output operations per second (LVD) 24

  9
• Figure 5. ST336918/ST318418 DC current and power vs. input/output operations per second (SE) 25

  9
• Figure 6. Location of HDA Temperature Check Point 26

  9
• Figure 7. Recommended mounting 28

  9
• Figure 8. LW mounting configuration dimensions 30

  9
• Figure 9. N mounting configuration dimensions 31

  9
• Figure 10. J6 jumper header for LW models 36

  9
• Figure 11. J6 jumper header for N model 37

  9
• Figure 12. J5 jumper header (on LW models only) 38

  9
• Figure 13. J2 option select header (for LW models) 39

  9
• Figure 14. J2 option select header (for N models) 39

  9
• Figure 15. Air flow (suggested) 42

  9
• Figure 16. N model drive physical interface (50-pin SCSI I/O connector) 58

  9
• Figure 17. LW model drive physical interface (68-pin J1 SCSI I/O connector) 59

  9
• Figure 18. Nonshielded 50-pin SCSI device connector used on N drives 61

  9
• Figure 19. SCSI daisy chain interface cabling for N drives 62

  9
• Figure 20. Nonshielded 68 pin SCSI device connector used on LW drives 63

  9
• Figure 21. SCSI daisy chain interface cabling for LW drives 64

  9
• Figure 22. LVD output signals 69

  9
• Figure 23. Typical SE-LVD alternative transmitter receiver circuits 69

  9
• Figure 24. Single-ended transmitters and receivers on N models 70

  9
• 1.0 Scope

  11
• 2.0 Applicable standards and reference documentation

  13
  • 2.1 Standards

    13
    • 2.1.1 Electromagnetic compatibility

      13
    • 2.1.2 Electromagnetic susceptibility

      13
  • 2.2 Electromagnetic compliance

    13
  • 2.3 Reference documents

    14
• 3.0 General description

  15
  • 3.1 Standard features

    16
  • 3.2 Media characteristics

    16
  • 3.3 Performance

    16
  • 3.4 Reliability

    16
  • 3.5 Unformatted and formatted capacities

    17
  • 3.6 Programmable drive capacity

    17
  • 3.7 Factory installed accessories

    17
  • 3.8 Options (factory installed)

    17
• 4.0 Performance characteristics

  18
  • 4.1 Internal drive characteristics (transparent to user)

    18
  • 4.2 SCSI performance characteristics (visible to user)

    18
    • 4.2.1 Access time [5]

      18
    • 4.2.2 Format command execution time (minutes) [1]

      18
    • 4.2.3 Generalized performance characteristics

      18
  • 4.3 Start/stop time

    19
  • 4.4 Prefetch/multi-segmented cache control

    19
  • 4.5 Cache operation

    20
    • 4.5.1 Caching write data

      20
    • 4.5.2 Prefetch operation

      21
• 5.0 Reliability specifications

  23
  • 5.1 Error rates

    23
    • 5.1.1 Environmental interference

      23
    • 5.1.2 Read errors

      23
    • 5.1.3 Write errors

      23
    • 5.1.4 Seek errors

      23
  • 5.2 Reliability and service

    24
    • 5.2.1 Mean time between failure

      24
    • 5.2.2 Preventive maintenance

      24
    • 5.2.3 Service life

      24
    • 5.2.4 Service philosophy

      24
    • 5.2.5 Service tools

      24
    • 5.2.6 Hot plugging Barracuda 36ES2 disc drives

      25
    • 5.2.7 S.M.A.R.T.

      25
    • 5.2.8 Drive Self Test (DST)

      26
      • 5.2.8.1 DST Failure Definition

        27
      • 5.2.8.2 Implementation

        27
        • 5.2.8.2.1 State of the drive prior to testing

          27
        • 5.2.8.2.2 Invoking DST

          27
        • 5.2.8.2.3 Short and extended tests

          27
        • 5.2.8.2.4 Log page entries

          28
        • 5.2.8.2.5 Abort

          28
    • 5.2.9 Product warranty

      28
• 6.0 Physical/electrical specifications

  31
  • 6.1 AC power requirements

    31
  • 6.2 DC power requirements

    31
    • 6.2.1 Conducted noise immunity

      32
    • 6.2.2 Power sequencing

      32
    • 6.2.3 12 V - Current profile

      32
  • 6.3 Power dissipation

    34
  • 6.4 Environmental limits

    36
    • 6.4.1 Temperature

      36
    • 6.4.2 Relative humidity

      37
    • 6.4.3 Effective altitude (sea level)

      37
    • 6.4.4 Shock and vibration

      37
      • 6.4.4.1 Shock

        37
      • 6.4.4.2 Vibration

        39
    • 6.4.5 Air cleanliness

      39
    • 6.4.6 Acoustics

      39
    • 6.4.7 Electromagnetic susceptibility

      39
  • 6.5 Mechanical specifications

    40
• 7.0 Defect and error management

  43
  • 7.1 Drive internal defects

    43
  • 7.2 Drive error recovery procedures

    43
  • 7.3 SCSI systems errors

    44
• 8.0 Installation

  45
  • 8.1 Drive ID/option select header

    45
    • 8.1.1 Notes for Figures 14 through 18

      50
    • 8.1.2 Function description

      51
    • 8.1.3 Drive orientation

      52
  • 8.2 Cooling

    52
    • 8.2.1 Air flow

      52
  • 8.3 Drive mounting

    53
  • 8.4 Grounding

    53
• 9.0 Interface requirements

  55
  • 9.1 General description

    55
  • 9.2 SCSI interface messages supported

    55
  • 9.3 SCSI interface commands supported

    56
    • 9.3.1 Inquiry Vital Product data

      60
    • 9.3.2 Mode Sense data

      62
  • 9.4 SCSI bus conditions and miscellaneous features supported

    65
  • 9.5 Synchronous data transfer

    67
    • 9.5.1 Synchronous data transfer periods supported

      67
    • 9.5.2 REQ/ACK offset

      67
  • 9.6 Physical interface

    67
    • 9.6.1 DC cable and connector

      67
    • 9.6.2 SCSI interface physical description

      70
    • 9.6.3 SCSI interface cable requirements

      70
    • 9.6.4 Mating connectors

      71
      • 9.6.4.1 Mating connectors for N model drives

        71
      • 9.6.4.2 Mating connectors for LW model drives

        73
  • 9.7 Electrical description

    78
    • 9.7.1 Multimode—SE and LVD alternatives

      78
      • 9.7.1.1 Single-ended drivers/receivers for N models

        80
      • 9.7.1.2 Single-ended drivers/receivers for LW models

        80
      • 9.7.1.3 Low voltage differential I/O circuits

        81
      • 9.7.1.4 General cable characteristics

        81
  • 9.8 Terminator requirements

    82
  • 9.9 Terminator power

    82
  • 9.10 Disc drive SCSI timing

    83
  • 9.11 Drive activity LED

    84
• 10.0 Seagate Technology support services

  85
  • Symbols

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  • Numerics

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