Жёсткий диск HDD IBM DFHS 2.25GB SCSI 3.5", p/n: 74G7029

Характеристики

Configuration

  Interface                                   SCSI-2/SCSI-3
  Formated device capacity           1.12/2.25/4.51 GB
  Sector size                               256-744
  Data heads                              4/8/16
  Disks                                       2/4/8
  Areal density (max)                  543.9 Mb/sq.in.
  Recording density (max)          124.9 KBPI
  Track density                           4352 TPI

Performance

  Rotational speed                     7200 RPM
  Media transfer rate (avg)         12.07 MB/sec (instantaneous)
  Interface transfer rate (max)    20.0 MB/sec
  Latency average                      4.17 ms
  Seek time (typical)
    Single cylinder (read)            0.6 ms
    Average weighted (read)       7.8/7.8/8.4 ms
    Full stroke (read)                 16.5 ms
  Spin up                                  8.2/13.2/11.7 sec

Power

  Idle                                        8.2/10.8/15.5 Watts
  Seeking                                  11/13.5/18.3 Watts
  +12V VDC start up              1.5/1.5/2.7 Amps


Physical size

  Height                                   25.4  mm (S4 models - 41.3 mm)
  Width                                   101.6 mm
  Depth                                  146.0 mm
  Weight                                 460   g (S4 models - 820 g)


Environmental characteristics


  Altitude
    Operating                             -300 to 3000 m
    Ship / store                          -300 to 12000 m

Temperature *4
    Operating                             5 to 55 C
    Storage                                 1 to 65 C
    Shipping                              -40 to 65 C
    Temperature gradient          20 C / hour (max)
      (Operating, storage or shipping)

  Operating
    Ambient temperature                   5 to 55 C
    Relative humidity  (non-condensing)   5% to 90%
    Maximum wet bulb   (non-condensing)   29.4 degrees C
    Shock              (half-sine wave)   10 G / 11 msec
    Vibration *5