SEAGATE TECHNOLOGY, INC. Customer Technical Support FAX Network +1 408 438-8137 Customer Technical Support Bulletin Boards (300-9600, 8-N-1) ��������������������������������������������������������������������Ŀ � United States +1 408 438-8771 � United Kingdom +44 628 478011 � ��������������������������������������������������������������������Ĵ � Germany +49 89 140-9331 � Singapore +65 227-2217 � ���������������������������������������������������������������������� (C)opyright 1993 ST-15150W SCSI-2 Fast Wide (Barracuda 4) J01����Ŀ (see 1�� �����������ͻ below) ��� � REAR VIEW � 1Ŀ ��������J4-1���Ŀ �����������ͼ �"� | �"�J4 1-6 � �"�(see b elow) | �"��J4-6�Ŀ � (TOP) J5 �"�-J4-7� | | ___________________ ��� �1�/���������\ | | | �( �����������������1)ͳ::::::�� 0 0 0 0 �� � � � \�����������ij����/ � �� ���5�G�G�12� � � 1 68 pin I/O Cable� ������ : : : : : : : Connection ������ � � � � � � 2 ������ Reserved ������� � � � � � � Spindle Synch Cable Connector ��ٳ���� (some drives do � � � � � � (pin-11 SSREF, pin-12 ground) ����� not have this � � � � � � Remote LED Connector ������������ٳ��� #7 jumper) � � � � � � [pin-9 cathode (neg), ���� Enable Drive ����� � � � � � pin-10 anode (pos)] ���� Terminators � � � � � ���� Reserved ����������� � � � � SCSI ID = 8 ����������������������ٳ�� (default OFF) � � � � SCSI ID = 4 �����������������������ٳ� Parity Disable ������� � � � SCSI ID = 2 ������������������������ٳ Enable Motor Start ����� � � SCSI ID = 1 �������������������������� Delay Motor Start �������� � SCSI ID = 0 (none) (10 sec * ID) � Write Protect Enable ������� ��������������������������������Ŀ � J01 - Terminator Power Jumpers ������������������Ŀ ���������������������������������� � Terminator power from the drive. �1�ķ * (default) ����� � � Terminator power from pin 26 on the �ķ SCSI bus. ���� ���� Terminator to the SCSI bus on pin 26. �ķ * ���� ���� Terminator power to the SCSI bus and ���ķ* drive. ����� ����� * Valid for single ended drives only. Note: ST-15150WD (differential model) does not come with any provision to use Termination resistors. Therefore, SCSI bus needs to be externally terminated. ST-15150W UNFORMATTED CAPACITY (MB) ________________5048 FORMATTED CAPACITY (xx SECTORS) (MB) _____4294 AVERAGE SECTORS PER TRACK ________________107 rounded down ACTUATOR TYPE ____________________________ROTARY VOICE COIL TRACKS ___________________________________77,931 CYLINDERS ________________________________3,711 user HEADS ______PHYSICAL______________________21 DISCS (3.5 in) ___________________________11 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________ZBR RLL (1,7) INTERNAL TRANSFER RATE (mbits/sec)________47.4 to 71.9 EXTERNAL TRANSFER RATE (mbyte/sec) _______20 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 WIDE BYTES PER TRACK __________________________64,773 average SECTORS PER DRIVE ________________________7,812,500 TPI (TRACKS PER INCH) ____________________4,048 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) ____________________800,000 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) _________14 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 9 spare sectors per cylinder and 1 spare cylinder per unit. ZBR = Zone Bit Recording = Variable sectors per track Seagate reserves the right to change, without notice, product offerings or specifications. (08/08/94)