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Barracuda 18XL

Capacity:
Speed:
Average Seek Time:
 

18.37 GB
7200 rpm
5.9 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-318416W Ultra SCSI Wide (Barracuda 18XL)

  浜様様様様様
   REAR VIEW   (ST-318416W)
  藩様様様様様
        (TOP)                  J5 Auxiliary
          ___________________  敖  1/様様様様\
        ( 忻忻忻忻忻忻忻忻1)由::::::崖 0 0 0 0 突
          \陳陳陳陳陳陳劃陳/    陳 2拈5GG12
       68 pin I/O Cable        崖崖崖
       Connection Male          崖崖崖   SCSI ID = 0 (none)
                                崖崖垣陳 SCSI ID = 1
                   pin-11 +5v 陳抒崖青陳 SCSI ID = 2
                   pin-10 GND 陳潰垣陳陳 SCSI ID = 4
                                  団陳陳 SCSI ID = 8
      pins 9 & 12 no connection   青陳陳 or pin-8 Activity LED*

* These pins are driven low for 250ms after PWR ON and RESET
  to allow jumper selectable SCSI ID as shown above.


  浜様様様様様
   SIDE VIEW   (ST-318416W)
  藩様様様様様

    FRONT    TOP (HDA)    J2  87654321              嬪
     OF 様様様様様様様様様様様様様様様様PWA様様様J1 Cable
    DRIVE    BOTTOM           ::::::::              塒
                              崖崖崖崖
  Enable T-Res (W model only) 抒崖崖垣 Terminator Power
   Start Delay (12 secs * ID) 潰崖崖青 Terminator Power耽
                  Motor Start 陳抒垣陳 Reserved         
                Write Protect 陳潰青陳 Parity Disable   
                                                        
    敖陳陳陳陳陳陳陳陳陳陳陳陳陳陳陳朕                  
     Termination Power-source Table 団陳陳陳陳陳陳陳陳潰
    団陳陳陳陳陳陳陳陳陳陳陳陳陳陳陳珍陳陳陳陳陳陳朕
              様様....様様....様様PWA edge様様由
                           2 1       2 1     2 1  
     A Drive Supplies Bus   崢     崢           
     B Drive Supplies Own  錯     錯錯    广程 
     C Bus Supplies Drive  囗     囗序    囗程 
     A+B is valid           A         B       C   
    青陳陳陳陳陳陳陳陳陳陳陳陳陳陳Default陳陳陳陳潰


  浜様様様様様融
   FRONT VIEW   (ST-318416W)
  藩様様様様様夕
                                  敖調Reserved. Shipped with cover installed.
                                    Do not remove. Do not install jumpers
                      TOP (HDA)  孩様邑     1
     様PWA様様様様様様様様様様裕::::::::::突
                 *    BOTTOM     塒様余123456
                                J6    崖崖崖
            LED 潰                     崖崖崖
                            Remote LED 抒崖垣 ID 1
                           (pin-11 +5v) 崖垣 ID 2
                              Reserved 潰垣陳 ID 4
                           (pin-10 GND)  青陳 ID 8



                            ST-318416W



       UNFORMATTED CAPACITY (GB) ________________
       FORMATTED CAPACITY (GB) __________________18.373
       AVERAGE SECTORS PER TRACK ________________415 rounded down
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________86,304
       CYLINDERS ________________________________14,384 user
       HEADS ______PHYSICAL______________________6
       DISCS (3.5 in) ___________________________3
       MEDIA TYPE _______________________________THIN FILM/GMR
       RECORDING METHOD _________________________PRML 16/17 EPR4
       INTERNAL TRANSFER RATE (mbits/sec)________195 to 315
       INTERNAL FORMATTED TRANSFER RATE (MB/sec)_24.7 to 39.4
       EXTERNAL TRANSFER RATE (mbyte/sec) _______40 Sync
       SPINDLE SPEED (RPM) ______________________7,200
       AVERAGE LATENCY (mSEC) ___________________4.17
       BUFFER ___________________________________2MB
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________Ultra SCSI Wide
              ASA II, SCAM level 2 (1 default)
       BYTES PER TRACK __________________________213Kbytes avg
       SECTORS PER DRIVE ________________________35,885,168
       TPI (TRACKS PER INCH) ____________________18,145
       BPI (PEAK KBITS PER INCH) ________________328.2
       AVERAGE ACCESS (ms read/write)____________6.0/6.5
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms read/write) ________0.7/0.7
       MAX FULL SEEK (ms read/write) ____________10.5/11.0
       MTBF (power-on hours) ____________________1,200,000
       SHOCK (G's, 11/2 ms):
                operating (Read/Write) __________15
                abnormal ________________________15
                nonoperating ____________________150/250
       ACOUSTICS (Bels typical) ________Idle ____3.5
                                         Max ____
       POWER DISSIPATION (watts/BTUs) Active ____/
                                      Idle ______/
       POWER REQUIREMENTS: +12V START-UP (amps) _2.4
                           +12V TYPICAL (amps) __0.30 idle
                           +5V START-UP (amps) __1.0
                           +5V TYPICAL (amps) ___0.80 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):      1.5/0.68

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. (4/20/2000)

A copy of this specification file may be obtained by FTP at
ftp://ftp.seagate.com/techsuppt/scsi/ST318416.W.


 



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