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Cheetah 18LP

Capacity:
Speed:
Average Seek Time:
 

18.21 GB
10000 rpm
5.4 ms


Installation Guide | Product Manual

 

Odd characters? Click here for help. A version of this specification with the linedraw characters approximated by text is available by clicking here.

                         SEAGATE TECHNOLOGY, INC.
                              1-800-SEAGATE
                          http://www.seagate.com
                            (C)opyright 1999


ST-318203FC Fibre Channel FC-AL, Dual Port (Cheetah 18 LP)

  浜様様様様様
   REAR VIEW   ST-318203FC
  藩様様様様様
       40 pin I/O and DC Power Wall/bracket Connection
                       Female
    J1          /陳陳劃陳陳陳陳\      TOP (HDA)
     様様様様様/ 忻忻忻忻忻忻忻 \様様様様様
              (\1陳陳陳陳陳陳20/)    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


  浜様様様様様融
   FRONT VIEW   (ST-318203FC)
  藩様様様様様夕

Reserved. Shipped with cover installed.
Do not remove. Do not install jumpers
                                       畋陳陳 Reserved
                                       崖敖陳 Fault LED
                                       崖楽陳 Port B Bypass LED
                                       崖崖敖 Port A Bypass LED
                      TOP (HDA)  孩様邑 崖崖1
     様PWA様様様様様様様様様様裕::::::::::突
                 *    BOTTOM     塒様余崖垣度
                                J6    崖 青 Ground
            LED 潰                     崖青陳 Active LED
                                       垣陳陳 Ground
                                       青陳陳 Remote LED (pin-11 +5v)

  ST318203FC drives have two independent FC-AL ports. These
  ports may be connected on independent loops or on the same
  loop.  Port A and Port B may be connected in any order or
  combination.


                            ST-318203FC



       UNFORMATTED CAPACITY (GB) ________________21.6
       FORMATTED CAPACITY (GB) __________________18.21
       AVERAGE SECTORS PER TRACK ________________302 rounded down
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________117,612
       CYLINDERS ________________________________9,801 user
       HEADS ______PHYSICAL______________________12
       DISCS (3.0 in) ___________________________6
       MEDIA TYPE _______________________________THIN FILM/MR
       RECORDING METHOD _________________________PRML 16/17 EPR4
       INTERNAL TRANSFER RATE (mbits/sec)________193 to 308
       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_22.7 to 36.2
       EXTERNAL TRANSFER RATE (mbyte/sec/port)___106.3 Sync
       SPINDLE SPEED (RPM) ______________________10,016
       AVERAGE LATENCY (mSEC) ___________________2.99
       BUFFER (/optional)________________________1024/ KByte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________FC-AL 
         Fibre Channel - Arbitrated Loop, ASA II
       BYTES PER TRACK __________________________153,284-229,045
       SECTORS PER DRIVE ________________________35,566,480
       TPI (TRACKS PER INCH) ____________________12,580
       BPI (PEAK KBITS PER INCH) ________________252
       AVERAGE ACCESS (ms read/write)____________5.4/6.0
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms read/write) ________0.7/0.9
       MAX FULL SEEK (ms read/write) ____________12.2/13.2
       MTBF (power-on hours) ____________________1,000,000
       SHOCK (G's, 11/2/.5 ms):
                operating (Read/Write) __________5
                abnormal ________________________10
                nonoperating ____________________75/175/100
       ACOUSTICS (Bels typical, sound power) ____4.3
       POWER DISSIPATION (watts/BTUs) Active ____/
                                      Idle ______11.8/40
       POWER REQUIREMENTS: +12V START-UP (amps) _1.4
                           +12V TYPICAL (amps) __0.57 idle
                           +5V START-UP (amps) __1.1
                           +5V TYPICAL (amps) ___1.0 idle
                           IDLE (watts) _________
       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):     5.75/146
                        Weight    (lbs/kg):      1.3/0.589

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

ZBR = Zone Bit Recording = Variable sectors per track


Seagate reserves the right to change, without notice, product 
offerings or specifications. (03/24/99)

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/fibre_channel/ST318203.FC.


 



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