SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1996



ST-34571FC Fibre Channel FC-AL, Dual Port (Barracuda 4LP)

  ÉÍÍÍÍÍÍÍÍÍÍÍ»
  º REAR VIEW º  ST-34571FC
  ÈÍÍÍÍÍÍÍÍÍÍͼ
       40 pin I/O and DC Power Wall/bracket Connection
                     ³  Female
    J1          /ÄÄÄijÄÄÄÄÄÄÄÄÄ\      TOP (HDA)
     ÍÍÍÍÍÍÍÍÍÍ/ ×××××××××××××× \ÍÍÍÍÍÍÍÍÍÍ
              (\Ä1ÄÄÄÄÄÄÄÄÄÄÄÄ20/)    BOTTOM

     Notes on 40 pin I/O connector:
            +12v  =  pins  2, 3, 4, 21
            +5v   =  pins  19, 20, 40
            GND   =  pins  6, 22, 23, 26, 29, 32, 35

  Mating FC connector: AMP US p/n: 787317-1 straight-in, Male 40-pin


  ÉÍÍÍÍÍÍÍÍÍÍÍÍ»
  º FRONT VIEW º  (ST-34571FC)
  ÈÍÍÍÍÍÍÍÍÍÍÍͼ

Reserved. Shipped with cover installed.
Do not remove. Do not install jumpers
                                  ³     ÚÂÄÄÄÄ Reserved
                                  ³     ³³ÚÄÄÄ Fault LED
                                  ³     ³³³ÚÄÄ Port B Bypass LED
                                  ³     ³³³³ÚÄ Port A Bypass LED
                      TOP (HDA)  ÕØÍÍ͸ ³³³³1
     ÍÍPÍWÍAÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ͵::::³::::::ÆÍÍ
                 *    BOTTOM     ÔÍÍÍ;³³³ÀÅÙ
                 ³               J6    ³³³ ÀÄÄ Ground
            LED ÄÙ                     ³³ÀÄÄÄÄ Active LED
                                       ³ÀÄÄÄÄÄ Ground
                                       ÀÄÄÄÄÄÄ Remote LED (pin-11 +5v)

  ST34571FC drives have two ports for connection to two
  independent loops.  Both loops may be active, but only
  one of these ports may be receiving or originating data
  at any one time.  Do not connect both ports to the same
  loop.


                            ST-34571FC


       UNFORMATTED CAPACITY (GB) ________________5.54
       FORMATTED CAPACITY (GB) __________________4.55
       AVERAGE SECTORS PER TRACK ________________172 rounded down
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________51,780
       CYLINDERS ________________________________5,178 user
       HEADS ______PHYSICAL______________________10
       DISCS (3.5 in) ___________________________5
       MEDIA TYPE _______________________________THIN FILM/MR
       RECORDING METHOD _________________________ZBR PRML (0,4,4)
       INTERNAL TRANSFER RATE (mbits/sec)________83 to 126
       EXTERNAL TRANSFER RATE (mbyte/sec) _______100 Sync
       SPINDLE SPEED (RPM) ______________________7,200
       AVERAGE LATENCY (mSEC) ___________________4.17
       BUFFER ___________________________________1024 KByte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________FC-AL 
         Fibre Channel - Arbitrated Loop, ASA II
       BYTES PER TRACK __________________________106,980 average
       SECTORS PER DRIVE ________________________8,888,923
       TPI (TRACKS PER INCH) ____________________5,555
       BPI (PEAK KBITS PER INCH) ________________128
       AVERAGE ACCESS (ms read/write)____________9.4/10.4
         Drive level with controller overhead
       SINGLE TRACK SEEK (ms read/write) ________2.0/2.1
       MAX FULL SEEK (ms) _______________________17.5/18.5
       MTBF (power-on hours) ____________________1,000,000
       SHOCK (G's, 11ms/2ms):
                operating (Read/Write) __________2
                abnormal ________________________10
                nonoperating ____________________75/100
       ACOUSTICS (Bels typical, sound power) ____4.2
       POWER DISSIPATION (watts/BTUs) Active ____19/64.8
                                      Idle ______14.5/49.5
       POWER REQUIREMENTS: +12V START-UP (amps) _2.69
                           +12V TYPICAL (amps) __0.88 idle
                           +5V START-UP (amps) __1.77
                           +5V TYPICAL (amps) ___1.70 idle
                           IDLE (watts) _________10
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:
                        Height (inches/mm):      1.0/25.4
                        Width  (inches/mm):     4.00/101.6
                        Depth  (inches/mm):     5.47/146
                        Weight    (lbs/kg):      1.5/0.68

Already low-level formatted at the factory with 80 spare sectors at
the end of each 8 cylinder region.  

ZBR = Zone Bit Recording = Variable sectors per track


Seagate reserves the right to change, without notice, product 
offerings or specifications. (08/04/97)