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-2125N (94221-125) Wren 5 HH SCSI
Power
SCSI Cable 4 2 1 P �12�G�G�5Ŀ
�������������������� A B C D E F G H o o o o � 0 0 0 0 �
�:::::::::::::::::::1� o o o o o o o o o o o o \���������/
����������������������������P�W�A������������������������������
� � ڿ ڿ ڿ
A-B Not used � � �� �� ��
B-C Terminator power from Bus � � �� �� ��
C-D Terminator power from Drive � � �1 �1 �1
D-E Not used � � Terminator
E-F Not used � � SIPs, pin-1
F-G Continuous test seeks � � toward rear.
G-H Motor Start option enable � �
� �� Parity check
�
Drive Select ID �
(ID 0 for single
drive system)
ST-2125N
94221-125/M WREN 5 HH
UNFORMATTED CAPACITY (MB) ________________125
FORMATTED CAPACITY (xx SECTORS) (MB) _____107
AVERAGE SECTORS PER TRACK ________________45
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________4632
CYLINDERS ________________________________1544
HEADS ____________________________________3
DISCS ____________________________________2
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (2,7)
TRANSFER RATE (mbytes/sec) _______________1.125-1.875
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.33
BUFFER ___________________________________32 Kbyte
Read Look-Ahead, Non-Adaptive,
Single-Segmented Buffer
INTERFACE ________________________________SCSI
TPI (TRACKS PER INCH) ____________________1280
BPI (BITS PER INCH) ______________________19213
AVERAGE ACCESS (ms) ______________________18
SINGLE TRACK SEEK (ms) ___________________4
MAX FULL SEEK (ms) _______________________40
MTBF (power-on hours) ____________________100,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.5
+12V TYPICAL (amps) __0.9
+5V START-UP (amps) __1.3
+5V TYPICAL (amps) ___1.0
TYPICAL (watts) ______16
MAXIMUM (watts) ______61
BUFFERED STEP PULSE RATE (micro sec) _____
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
Already low-level formatted at the factory.
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)