SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
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� United States +1 408 438-8771 � United Kingdom +44 628 478011 �
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� Germany +49 89 140-9331 � Singapore +65 227-2217 �
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(C)opyright 1991
ST-151 ST412 MFM
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� 0 �12
� 0 �G
� 0 �G
� 0 �5
�Data Cable �Controller Cable 1 \����
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o o o o o o o o �������������1
o o o o o o o o ��������������
� � � � 4 3 2 1 � Resistor Termination Pack
(front corner) � � � � �������
�o Optional � � � � �
�o LED � � � � ����� Drive Selects
Connector � � � ���������� Factory Test
� � ������������ Not Used
� �������������� Recovery Mode
���������������� Radial
ST - 151
UNFORMATTED CAPACITY (MB) ________________50.8
FORMATTED CAPACITY (17 SECTORS) (MB) _____42.5
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________4,885
CYLINDERS ________________________________977
HEADS ____________________________________5
DISCS ____________________________________3
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________MFM
TRANSFER RATE (mbits/sec) ________________5.0
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.33
INTERFACE ________________________________ST412
SECTORS PER DRIVE ________________________83,045
TPI (TRACKS PER INCH) ____________________1,300
BPI (BITS PER INCH) ______________________14,108
AVERAGE ACCESS (ms) ______________________24
SINGLE TRACK SEEK (ms) ___________________8
MAX FULL SEEK (ms) _______________________44
MTBF (power-on hours) ____________________150,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.0
+12V TYPICAL (amps) __0.45
+5V TYPICAL (amps) ___0.5
TYPICAL (watts) ______8
MAXIMUM (watts) ______27
BUFFERED STEP PULSE RATE (micro sec) _____3-200
WRITE PRECOMP (cyl) ______________________N/A (978)
REDUCED WRITE CURRENT (cyl) ______________N/A (978)
LANDING ZONE (cyl)________________________AUTO PARK
IBM AT DRIVE TYPE ________________________17 or 11*
* 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)
