Seagate 450GB 3.5" SAS Manuales de usuario

Tabla de contenidos

• 1.0 Scope

  7
• 2.0 Standards, compliance and reference documents

  9
  • 2.1 Standards

    9
    • 2.1.1 Electromagnetic compatibility

      9
      • 2.1.1.1 Electromagnetic susceptibility

        9
  • 2.2 Compliance

    10
    • 2.2.1 Electromagnetic compliance

      10
  • 2.3 European Union Restriction of Hazardous Substances (RoHS)

    10
  • 2.4 Reference documents

    11
• 3.0 General description

  13
  • 3.1 Standard features

    14
  • 3.2 Media description

    14
  • 3.3 Performance

    14
  • 3.4 Reliability

    15
  • 3.5 Formatted capacities

    15
  • 3.6 Programmable drive capacity

    15
  • 3.7 Factory-installed accessories

    15
  • 3.8 Options (factory installed)

    15
• 4.0 Performance characteristics

  17
  • 4.1 Internal drive characteristics

    17
  • 4.2 Seek time

    17
    • 4.2.1 Access time

      17
    • 4.2.2 Format command execution time (minutes)

      18
    • 4.2.3 General performance characteristics

      18
  • 4.3 Start/stop time

    18
  • 4.4 Prefetch/multi-segmented cache control

    19
  • 4.5 Cache operation

    19
    • 4.5.1 Caching write data

      20
    • 4.5.2 Prefetch operation

      20
• 5.0 Reliability specifications

  21
  • 5.1 Error rates

    21
    • 5.1.1 Recoverable Errors

      21
    • 5.1.2 Unrecoverable Errors

      21
    • 5.1.3 Seek errors

      22
    • 5.1.4 Interface errors

      22
  • 5.2 Reliability and service

    22
    • 5.2.1 Annualized Failrue Rate (AFR) and Mean time between failure (MTBF)

      22
    • 5.2.2 Preventive maintenance

      22
    • 5.2.3 Hot plugging the drive

      22
    • 5.2.4 S.M.A.R.T.

      23
    • 5.2.5 Thermal monitor

      24
    • 5.2.6 Drive Self Test (DST)

      25
      • 5.2.6.1 DST failure definition

        25
      • 5.2.6.2 Implementation

        25
        • 5.2.6.2.1 State of the drive prior to testing

          26
        • 5.2.6.2.2 Invoking DST

          26
        • 5.2.6.2.3 Short and extended tests

          26
        • 5.2.6.2.4 Log page entries

          26
        • 5.2.6.2.5 Abort

          27
    • 5.2.7 Product warranty

      27
• 6.0 Physical/electrical specifications

  29
  • 6.1 AC power requirements

    29
  • 6.2 DC power requirements

    29
    • 6.2.1 Conducted noise immunity

      31
    • 6.2.2 Power sequencing

      31
    • 6.2.3 Current profiles

      31
  • 6.3 Power dissipation

    35
  • 6.4 Environmental limits

    38
    • 6.4.1 Temperature

      38
    • 6.4.2 Relative humidity

      39
    • 6.4.3 Effective altitude (sea level)

      39
    • 6.4.4 Shock and vibration

      39
      • 6.4.4.1 Shock

        39
      • 6.4.4.2 Vibration

        41
    • 6.4.5 Acoustics

      41
    • 6.4.6 Air cleanliness

      41
    • 6.4.7 Corrosive environment

      41
    • 6.4.8 Electromagnetic susceptibility

      42
  • 6.5 Mechanical specifications

    42
• 7.0 Defect and error management

  45
  • 7.1 Drive internal defects/errors

    45
  • 7.2 Drive error recovery procedures

    45
  • 7.3 SAS system errors

    47
  • 7.4 Background Media Scan

    47
  • 7.5 Media Pre-Scan

    47
  • 7.6 Deferred Auto-Reallocation

    48
  • 7.7 Idle Read After Write

    48
• 8.0 Installation

  49
  • 8.1 Drive orientation

    49
  • 8.2 Cooling

    50
  • 8.3 Drive mounting

    51
  • 8.4 Grounding

    51
• 9.0 Interface requirements

  53
  • 9.1 SAS features

    53
    • 9.1.1 task management functions

      53
    • 9.1.2 task management responses

      53
  • 9.2 Dual port support

    54
  • 9.3 SCSI commands supported

    55
    • 9.3.1 Inquiry data

      59
    • 9.3.2 Mode Sense data

      59
      • 9.3.2.1 ST3450856SS Mode Sense data

        61
      • 9.3.2.2 ST3300656SS Mode Sense data

        62
      • 9.3.2.3 ST3146356SS Mode Sense data

        63
  • 9.4 Miscellaneous operating features and conditions

    64
    • 9.4.1 SAS physical interface

      65
    • 9.4.2 Physical characteristics

      67
    • 9.4.3 Connector requirements

      67
    • 9.4.4 Electrical description

      68
    • 9.4.5 Pin descriptions

      68
    • 9.4.6 SAS transmitters and receivers

      69
    • 9.4.7 Power

      69
  • 9.5 Signal characteristics

    69
    • 9.5.1 Ready LED Out

      69
    • 9.5.2 Differential signals

      70
      • 9.5.2.1 Eye masks

        70
        • 9.5.2.1.1 Eye masks overview

          70
        • 9.5.2.1.2 Receive eye mask

          71
        • 9.5.2.1.3 Jitter tolerance masks

          71
      • 9.5.2.2 Transmitter signal characteristics

        73
      • 9.5.2.3 Receiver signal characteristics

        74
        • 9.5.2.3.1 Jitter

          74
        • 9.5.2.3.2 Receiver jitter tolerance

          75
        • 9.5.2.3.3 Compliant jitter test pattern (CJTPAT)

          75
        • 9.5.2.3.4 Impedance specifications

          75
      • 9.5.2.4 Electrical TxRx connections

        76
        • 9.5.2.4.1 Transmitter characteristics

          76
      • 9.5.2.5 Receiver characteristics

        79
• 10.0 Seagate Technology support services

  81
  • Numerics

    83
  • A

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  • B

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  • C

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  • D

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  • E

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  • F

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  • G

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  • H

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  • I

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  • J

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  • L

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  • M

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  • N

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  • O

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  • P

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  • Q

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  • R

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  • S

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  • T

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  • U

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  • V

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  • W

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  • Z

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