Seagate ST11950N HARD DISK DRIVE REPAIR, Seagate ST11950N HARD DISK DRIVE SPECIFICATIONS,
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Seagate ST11950N Hard Disk Drive Repair, Seagate ST11950N Hard Disk Drive Specifications, Seagate ST11950N Seagate ST11950N
Specifications



seagate st11950n picture.
seagate st11950n picture.
seagate st11950n picture.

Seagate ST11950N Specifications
Model Capacity Size Height Bus Type Int.Type
ST11950N Barracuda 1 1.69GB 3.5" HHT SCSI2 Fast

Barracuda 1   :    ST11950N
Barracuda 1

Capacity: 
Speed: 
Average Read Time: 
 

1.07 GB
7200 rpm
8 ms



ST-11950N SCSI-2 Fast (Barracuda 1)

 �����������ͻ               J01����Ŀ  1Ŀ �������J4-1�������������Ŀ
 � REAR VIEW �              (see    1�� �"�                          �
 �����������ͼ               below) ��� �"�                          �
                                        �"�J4 1-11                   �
 Terminating ResistorsĿ                �"�(see detail below)        �
         ������Ŀ ����ijĿ              �"�                          �
(TOP)    �������1 �������1              �"��J4-11�                   �
      ���������������������������/���������\     �                   �
     ͵::::::::::::::::::::::::1Ƴ 0 0 0 0 ��    �                   �
      ����������������������ͳ�����5�G�G�12�     �               5   1
 50 pin I/O Cable Connection��                   : : : : : : : : : : :
                                                 � � � � � � � � 6 � 2
                              SCSI ID = 0 (none) � � � � � � � � � � �
                              SCSI ID = 4 �������� � � � � � � � � � �
                              SCSI ID = 2 ���������� � � � � � � � � �
                              SCSI ID = 1 ������������ � � � � � � � �
                        Reserved (default OFF) ��������� � � � � � � �
                        Parity Disable ������������������� � � � � � �
                        Enable Motor Start ����������������� � � � � �
                        Delay Motor Start (10 sec * ID) ������ � � � �
                        Write Protect Enable ������������������� � � �
                        Remote LED Connector ��������������������� � �
                         [pin-5 cathode (neg), pin-6 anode (pos)]  � �
                        Reserved (default OFF) ��������������������� �
                        Spindle Synch Cable Connector ����������������
                          (pin-1 SSREF, pin-2 ground)

��������������������������������Ŀ
� J01 - Terminator Power Jumpers ������������������Ŀ
����������������������������������                  �
            Terminator power from the drive.       �1�2� *
              (default)                            ����
                                                    � �
            Terminator power from pin 26 on the      �ķ *
              SCSI bus.                             ��
                                                    ���

            Terminator power to the SCSI bus on     �ķ
              pin 26.                               ���
                                                    ���

            Terminator power to the SCSI bus and    ���ķ*
              drive.                                ���
                                                    ����
            * Valid for single-ended drives only.

    Note: ST-11950ND (differential model) does not come with any
          provision to use Termination resistors.  Therefore, SCSI bus
          needs to be externally terminated.


                            ST-11950N


       UNFORMATTED CAPACITY (MB) ________________2030
       FORMATTED CAPACITY (xx SECTORS) (MB) _____1690
       AVERAGE SECTORS PER TRACK ________________81 rounded down
       ACTUATOR TYPE ____________________________ROTARY VOICE COIL
       TRACKS ___________________________________40,665
       CYLINDERS ________________________________2,706 user
       HEADS ______PHYSICAL______________________15
       DISCS (3.5 in) ___________________________8
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________ZBR RLL (1,7)
       INTERNAL TRANSFER RATE (mbits/sec)________34.3 to 56.5
       EXTERNAL TRANSFER RATE (mbyte/sec) _______5 Async
       EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync
       SPINDLE SPEED (RPM) ______________________7,200
       AVERAGE LATENCY (mSEC) ___________________4.17
       BUFFER ___________________________________1024 KByte
         Read Look-Ahead, Adaptive,
         Multi-Segmented Cache
       INTERFACE ________________________________SCSI-2 FAST
       BYTES PER TRACK __________________________49,768 average
       SECTORS PER DRIVE ________________________3,291,790
       TPI (TRACKS PER INCH) ____________________3,047
       BPI (BITS PER INCH) ______________________52,187
       AVERAGE ACCESS (ms) (read/write)__________8.0/9.0
         Drive level without controller overhead
       SINGLE TRACK SEEK (ms) ___________________0.6/0.9
       MAX FULL SEEK (ms) _______________________17/19
       MTBF (power-on hours) ____________________500,000
       POWER DISSIPATION (watts/BTUs) Active ____16/55
                                      Idle ______15/51
       POWER REQUIREMENTS: +12V START-UP (amps) _2.18
                           +12V TYPICAL (amps) __0.83 idle
                           +5V START-UP (amps) __1.0
                           +5V TYPICAL (amps) ___0.76 idle
                           IDLE (watts) _________12.5
       LANDING ZONE (cyl) _______________________AUTO PARK
       IBM AT DRIVE TYPE ________________________0 or NONE

       Physical:
                        Height (inches/mm):     1.63/41.4
                        Width  (inches/mm):     4.00/101.6
                        Depth  (inches/mm):     5.97/151.6
                        Weight    (lbs/kg):     2.3/1.04

Already low-level formatted at the factory with 6 spare sectors
per cylinder and 1 spare cylinder/unit.

ZBR = Zone Bit Recording = Variable sectors per track

Seagate reserves the right to change, without notice, product 
offerings or specifications. (09/18/96)

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