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SEAGATE TECHNOLOGY, INC.
Customer Technical Support FAX Network +1 408 438-8137
Customer Technical Support Bulletin Boards (300-9600, 8-N-1)
??????????????????????????????????????????????????????????????????????
? United States +1 408 438-8771 ? United Kingdom +44 628 478011 ?
??????????????????????????????????????????????????????????????????????
? Germany +49 89 140-9331 ? Singapore +65 227-2217 ?
??????????????????????????????????????????????????????????????????????
(C)opyright 1993
ST-15150N SCSI-2 Fast (Barracuda 4)
????????????? J01?????? 1?? ???????J4-1???????????????
? REAR VIEW ? (see ???? ?"? ?
????????????? below)???? ?"? ?
?"?J4 1-11 ?
Terminating Resistors?? ?"?(see detail below) ?
???????? ???????? ?"? ?
(TOP) ???????1 ???????1 ?"??J4-11? ?
???????????????????????????/?????????\ ? ?
??::::::::::::::::::::::::1?? 0 0 0 0 ?? ? ?
?????????????????????????????5?G?G?12? ? 5 1
50 pin I/O Cable Connection?? : : : : : : : : : : :
? ? ? ? ? ? ? ? 6 ? 2
SCSI ID = 0 (none) ? ? ? ? ? ? ? ? ? ? ?
SCSI ID = 4 ???????? ? ? ? ? ? ? ? ? ? ?
SCSI ID = 2 ?????????? ? ? ? ? ? ? ? ? ?
SCSI ID = 1 ???????????? ? ? ? ? ? ? ? ?
Reserved (default OFF) ????????? ? ? ? ? ? ? ?
Parity Disable ??????????????????? ? ? ? ? ? ?
Enable Motor Start ????????????????? ? ? ? ? ?
Delay Motor Start (10 sec * ID) ?????? ? ? ? ?
Write Protect Enable ??????????????????? ? ? ?
Remote LED Connector ????????????????????? ? ?
[pin-5 cathode (neg), pin-6 anode (pos)] ? ?
Reserved (default OFF) ????????????????????? ?
Spindle Synch Cable Connector ????????????????
(pin-1 SSREF, pin-2 ground)
?? ST-15150N only ?????????????????????????
? J01 - Terminator Power 2x3 jumper block ?
???????????????????????????????????????????
2???
Enable Drive Terminators ???? ?
1???? ?
Terminator power from the drive. ?????
(default) ??????
1? ? ?
Terminator power from pin 26 on the ???
SCSI bus. ? ????
1? ????
Terminator to the SCSI bus on pin 26. ???
?????
1?????
Terminator power to the SCSI bus and ?????
drive. ??????
1??????
Note: ST-15150ND (differential model) does not come with any
provision to use Termination resistors. Therefore, SCSI bus
needs to be externally terminated.
?? ST-15150ND only ????????????????????????
? J01 - Terminator Power 2x2 jumper block ?
???????????????????????????????????????????
1??? 2
Terminator to the SCSI bus on pin 26. ????
(all other J01 jumper positions are ????
invalid)
ST-15150N
UNFORMATTED CAPACITY (MB) ________________5062
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) _______4 Async
EXTERNAL TRANSFER RATE (mbyte/sec) _______10 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
BYTES PER TRACK __________________________64,773 average
SECTORS PER DRIVE ________________________7,812,500
TPI (TRACKS PER INCH) ____________________4,048
BPI (BITS PER INCH) ______________________73,820
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
SHOCK (G's):
operating (Read/Write) __________2
nonoperating ____________________50
ACOUSTICS (typ/max dBA) __________________4.7/
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. (08/26/94)