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-31230N SCSI-2 Fast (Hawk 2LP) �����������ͻ � REAR VIEW � (ST-31230N only) �����������ͼ 50 pin I/O Cable Connection � J1�������������������������1� /���������\ TOP (HDA) ͵:::::::::::::::::::::::::�ͳ 0 0 0 0 ��� �������������������������; ��5�G�G�12� BOTTOM �����������������ͻ � RIGHT SIDE VIEW � (ST-31230N) �����������������ͼ BACK �͸ J2 12345678 TOP (HDA) FRONT OF J1�����������������������P�W�A����������������������� OF DRIVE �; :::::::: BOTTOM DRIVE �������� �Terminator Power ٳ������ Enable T-Res ڴTerminator Power �ٳ����� Start Delay (12 secs * ID) � Reserved ��ٳ���� Motor Start � Parity Enable �������� Write Protect � � � ��������������������������������Ŀ �Ĵ Termination Power-source Table � ����������������������������������������������Ŀ ������....�����....�����PWA edge����� � � � � 1 2 1 2 1 2 � � �ķ �ķ A Drive Supplies Bus � � ���� ���� ����� B Drive Supplies Own � � ���� ���� �� �� C Bus Supplies Drive � � A B C � ����������Default������������������������������� ����������������ͻ � LEFT SIDE VIEW � (ST-31230N) ����������������ͼ If these ID jumpers are used, then ID jumpers shown in front view ARE NOT USED. FRONT TOP (HDA) J5 ���1� �͸BACK OF ��������P�W�A������������������������������͵:::�͵J1 OF DRIVE BOTTOM ���; �;DRIVE ��� ID 1 �ٳ�� ID 4 ID 2 ������������ͻ � FRONT VIEW � (ST-31230N) ������������ͼ ��ĴReserved. Shipped with cover installed. � �Do not remove. Do not install jumpers TOP (HDA) ����͸ 1 ��P�W�A��������������������͵::::�::::::��� * BOTTOM ����;123456 � J6 ������ LED �� ������ ID 4 ٳ���� Reserved ID 2 �ٳ��� Remote LED (pin-3 +5v) ID 1 ������ Reserved If these ID jumper are used, then ID jumpers shown in left side view J5 ARE NOT USED. ST-31230N Hawk 2LP UNFORMATTED CAPACITY (MB) ________________1280 FORMATTED CAPACITY (xx SECTORS) (MB) _____1060 AVERAGE SECTORS PER TRACK ________________103 ACTUATOR TYPE ____________________________ROTARY VOICE COIL TRACKS ___________________________________19,960 CYLINDERS ________________________________3992 HEADS ______PHYSICAL______________________5 DISCS (3.5 in) ___________________________3 MEDIA TYPE _______________________________THIN FILM RECORDING METHOD _________________________ZBR RLL (1,7) INTERNAL TRANSFER RATE (mbits/sec)________33.9 to 56.7 EXTERNAL TRANSFER RATE (mbyte/sec) _______5.2 Async EXTERNAL TRANSFER RATE (mbyte/sec) _______10 Sync SPINDLE SPEED (RPM) ______________________5411 AVERAGE LATENCY (mSEC) ___________________5.54 BUFFER ___________________________________512 KByte Read Look-Ahead, Adaptive, Multi-Segmented Cache INTERFACE ________________________________SCSI-2 FAST TPI (TRACKS PER INCH) ____________________4200 AVERAGE ACCESS (ms) (read/write)__________10.4/11.4 Including controller overhead SINGLE TRACK SEEK (ms) (read/write)_______2.1/2.5 MAX FULL SEEK (ms) (read/write)___________20.4/21.4 MTBF (power-on hours) ____________________800,000 SHOCK (G's): operating (Read/Write) __________10 nonoperating ____________________75 ACOUSTICS (typ/max dBA) __________________ POWER REQUIREMENTS: +12V START-UP (amps) _2.0 +12V TYPICAL (amps) __0.35 +5V START-UP (amps) __0.61 +5V TYPICAL (amps) ___0.35 TYPICAL (watts) ______6 MAXIMUM (watts) ______9 LANDING ZONE (cyl) _______________________AUTO PARK IBM AT DRIVE TYPE ________________________0 or NONE Physical: Height (inches/mm): 1.00/25.4 Width (inches/mm): 4.02/101.6 Depth (inches/mm): 5.74/145.8 Weight (lbs/kg): 1.5/0.68 Already low-level formatted at the factory with 1 spare sector per head (all spare sectors are on one track) and 2 spare cylinders per unit. ZBR = Zone Bit Recording = Variable sectors per track Seagate reserves the right to change, without notice, product offerings or specifications. (08/26/94)