Seagate ST225R HARD DISK DRIVE REPAIR, Seagate ST225R HARD DISK DRIVE SPECIFICATIONS,
Seagate ST225R hard disk drive sales, Seagate ST225R hard disk drive repair, Seagate ST225R hard disk drive specifications, 
Seagate ST225R Hard Disk Drive Repair, Seagate ST225R Hard Disk Drive Specifications, Seagate ST225R Seagate ST225R
Specifications



seagate st225r picture.
seagate st225r picture.
seagate st225r picture.

Seagate ST225R Specifications
Model Capacity Size Height Bus Type Int.Type
ST225R 21MB 5.25" HHT RLL ST412

Legacy   :    ST225R

Legacy

Capacity: 
Speed: 
Average Read Time: 
 Cylinders: 
Heads: 
Sectors: 

21.2 MB
3000 rpm
70 ms
667
2
31
ST-225R ST412 RLL

                                                          /�4�3�2�1�\
                                                          � O O O O � Power
              o o o o o o o o                             �����������
  �Data Cable o o o o o o o o  �Controller Cable    1       5 G G 12
 ��������� �� � � � � � � � � �������������������� ���   ������������
              � � � � � � � � �������������1
              � � � � � � � � ��Terminator��
              � � � � � � � �
Drive Select->1 2 3 4 � � � � Radial
                � � � � � ��� Reserved
                � ��� � ����� Write Fault
                �  �  ������� Factory Test
                �  ���������� Never Used (Drive Select 3 and 4)
                � If twisted cable, use Drive Select 2

                              ST - 225R

       UNFORMATTED CAPACITY (MB) ________________25.0
       FORMATTED CAPACITY (31 SECTORS) (MB) _____21.2
       ACTUATOR TYPE ____________________________STEPPER
       TRACKS ___________________________________1,334
       CYLINDERS ________________________________667
       HEADS ____________________________________2
       DISCS ____________________________________1
       MEDIA TYPE _______________________________THIN FILM
       RECORDING METHOD _________________________RLL
       TRANSFER RATE (mbits/sec) ________________7.5
       SPINDLE SPEED (RPM) ______________________3,000
       INTERFACE ________________________________ST412
       TPI (TRACKS PER INCH) ____________________588
       BPI (BITS PER INCH) ______________________18,897
       AVERAGE ACCESS (ms) ______________________70
       SINGLE TRACK SEEK (ms) ___________________20
       MTBF (power-on hours) ____________________100,000
       POWER REQUIREMENTS: +12V START-UP (amps) _2.4
                           +12V TYPICAL (amps) __0.9
                           +5V TYPICAL (amps) ___0.8
                           TYPICAL (watts) ______14.8
                           MAXIMUM (watts) ______33
       BUFFERED STEP PULSE RATE (micro sec) _____5-200
       WRITE PRECOMP (cyl) ______________________N/A (668)
       REDUCED WRITE CURRENT (cyl) ______________N/A (668)
       LANDING ZONE (cyl)________________________670
       IBM AT DRIVE TYPE ________________________*

       *MUST BE USED WITH THE ST11R CONTROLLER OR
        16-BIT CONTROLLER

 * MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING
   AND PARTITIONING SOFTWARE.  ALSO, CHECK TO SEE IF YOUR CMOS SETUP
   HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.

Seagate reserves the right to change, without notice, product 
offerings or specifications. (6/26/90)

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