SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
ЪДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДВДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДї
і United States +1 408 438-8771 і United Kingdom +44 628 478011 і
ГДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДЕДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДґ
і Germany +49 89 140-9331 і Singapore +65 227-2217 і
АДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДБДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДЩ
(C)opyright 1993
ST-15150W SCSI-2 Fast Wide (Barracuda 4)
J01ДДДДДї
(see 1ії
ЙННННННННННН» below) АДЩ
є REAR VIEW є 1Дї ДДДДДДДДJ4-1ДДДДї
ИНННННННННННј і"і |
і"іJ4 1-6 і
і"і(see b elow) |
Г"ґДJ4-6ДДї і
(TOP) J5 А"Щ-J4-7ї | |
___________________ ЪДД Д1ї/ННННННННН\ | | |
Н( ЧЧЧЧЧЧЧЧЧЧЧЧЧЧЧЧЧ1)Ні::::::іі 0 0 0 0 ЖН і і і
\ДДДДДДДДДДДДіДДДД/ А ДД ЩАД5ДGДGД12Щ і і 1
68 pin I/O CableЩ іііііі : : : : : : :
Connection іііііі і і і і і і 2
іііііі Reserved ДДДДДДЩ і і і і і і
Spindle Synch Cable Connector ДДЩііііі (some drives do і і і і і і
(pin-11 SSREF, pin-12 ground) ііііі not have this і і і і і і
Remote LED Connector ДДДДДДДДДДДДЩіііі #7 jumper) і і і і і і
[pin-9 cathode (neg), іііі Enable Drive ДДДДЩ і і і і і
pin-10 anode (pos)] іііі Terminators і і і і і
іііі Reserved ДДДДДДДДДДЩ і і і і
SCSI ID = 8 ДДДДДДДДДДДДДДДДДДДДДДЩііі (default OFF) і і і і
SCSI ID = 4 ДДДДДДДДДДДДДДДДДДДДДДДЩіі Parity Disable ДДДДДДЩ і і і
SCSI ID = 2 ДДДДДДДДДДДДДДДДДДДДДДДДЩі Enable Motor Start ДДДДЩ і і
SCSI ID = 1 ДДДДДДДДДДДДДДДДДДДДДДДДДЩ Delay Motor Start ДДДДДДДЩ і
SCSI ID = 0 (none) (10 sec * ID) і
Write Protect Enable ДДДДДДЩ
ЪДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДї
і J01 - Terminator Power Jumpers ГДДДДДДДДДДДДДДДДДДї
АДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДДЩ і
Terminator power from the drive. Ц1ДД· *
(default) УшДшЅ
ш ш
Terminator power from pin 26 on the ЦД·
SCSI bus. шєшє
шУшЅ
Terminator to the SCSI bus on pin 26. ЦД· *
єшєш
УшЅш
Terminator power to the SCSI bus and ЦДТД·*
drive. єшєшє
УшЅшР
* 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)