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-41520N (97501-16G) Elite-1 FH SCSI-2
� � � � � � � ���������� Parity DISable
� I/O Board � � �������� Spinup Delay (10 sec)
� � � � � � � � � ������ Manual Reset
� � � ���� Active LED (red)
��� Spindle Sync � � � � �� Heartbeat LED (green)
A� SCSI ID �Ŀ � � � � �
1o-o� ������������������������� � o o o
�p n� �::::::::::::::::::::::::1� ���� o o o
�o o� �������������������������; o o o o
�o-o� �����������1 �����������1 o o o o
o-o5 ���ij������� ���ij������� 4 2 1 �
�B � T-RES � T-RES only on Motor Start ���
� 3o o4 Differential Enable
��� Select 2o�o1
Plug �
� DC Power Connector J15
���������������������������������� 0�0�0�0�0�0�0�0�0�1
� Terminator Power Source Options �
���������������������������������������������������������������������Ŀ
� 2 & 3 � Host supplies power over the SCSI Bus for terminators. �
� Drive supplies no terminator power. �
� 1 & 2 � Drive supplies power for its own terminator resistor-paks �
� but not to SCSI Bus. This is the factory setting. �
� 4 - Not used. �
������������������������������������������������������������������������
� � � � � � � �
� Servo Board �
� � � � � � � �
Fault LED (red) �����Ŀ
Ready LED (green) ��Ŀ � DIP SWITCHES
Unit Selected (amber) � � � S3 S2 S1
� � � ��������Ŀ��������Ŀ��������ĿOn
�12345678��12345678��12345678�
����������������������������Off
����������������ٳ ��������
� � ���� �
Sector Switches (all OFF) ��� � ���� �
Runt Sector �8��������� ���� �
Sweep Cycle Enable �1�����������ٳ�� �
Enable Sweep only on seeks �2������������ٳ� �
Manufacturing Test (keep OFF) �3�������������ٳ �
Write Enable (default ON) �4��������������� �
Unit Select Switches (all OFF) �6�8����������������
ST-41520N
Elite-1 FH
UNFORMATTED CAPACITY _____________________1,600,930,800
FORMATTED CAPACITY (xx SECTORS) __________1,370,545,152 **
AVERAGE SECTORS PER TRACK (with spares)___74.945
ACTUATOR TYPE ____________________________ROTARY VOICE COIL
TRACKS/USER ______________________________35,717/35,666
CYLINDERS/USER ___________________________2,101/2,098
HEADS ____________________________________17
DISCS ____________________________________10
MEDIA TYPE _______________________________THIN FILM
HEAD TYPE ________________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (2,7)
INTERNAL TRANSFER RATE (mbits/sec) _______26 to 36
EXTERNAL TRANSFER RATE (mbytes/sec) ______5
SPINDLE SPEED (RPM) ______________________5,400
AVERAGE LATENCY (mSEC) ___________________5.56
COMMAND OVERHEAD (msec) __________________<0.5
BUFFER ___________________________________256 Kbyte
Read Look-Ahead, Adaptive, Multi-Segmented
Cache
INTERFACE ________________________________SCSI-2
BYTES PER TRACK __________________________36,400 to 50,400
SECTORS PER DRIVE ________________________2,768,896
BYTES PER CYLINDER _______________________618,800 to 856,800
TPI (TRACKS PER INCH) ____________________
BPI (BITS PER INCH) ______________________
AREAL DENSITY ____________________________
AVERAGE ACCESS (ms) ______________________11.5
SINGLE TRACK SEEK (ms) ___________________1.7
MAX FULL SEEK (ms) _______________________22.5
MTBF (power-on hours) Class A Room _______250,000
MTBF (power-on hours) Office _____________150,000
POWER DISSIPATION (watts/BTU) ____________
POWER REQUIREMENTS: Single-ended/Differential
+12V START-UP (amps) _2.2/3.2
+12V TYPICAL (amps) __1.8/1.8
+5V START-UP (amps) __2.1/2.9
+5V TYPICAL (amps) ___2.0/2.3
TYPICAL (watts) ______31.6/33.1
MAXIMUM (watts) ______36.9/39.4
LANDING ZONE (cyl) _______________________AUTO PARK
USER MANUAL PART NUMBER __________________83327300
REFERENCE MANUAL PART NUMBER _____________86627310
IBM AT DRIVE TYPE ________________________0 or NONE
OTHER ____________________________________DUAL PORT
ZBR = Zone Bit Recording = Variable sectors per track
** Already low-level formatted at the factory with six spare sectors
per cylinder, one spare cylinders/unit, one system cylinder/unit, and
one diagnostic cylinder/unit.
