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SEAGATE TECHNOLOGY, INC.
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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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(C)opyright 1991
ST-2125N (94221-125) Wren 5 HH SCSI
Power
SCSI Cable 4 2 1 P ?12?G?G?5??
?????????????????????? A B C D E F G H o o o o ? 0 0 0 0 ?
?:::::::::::::::::::1? o o o o o o o o o o o o \?????????/
????????????????????????????P?W?A??????????????????????????????
? ? ?? ?? ??
A-B Not used ? ? ?? ?? ??
B-C Terminator power from Bus ? ? ?? ?? ??
C-D Terminator power from Drive ? ? ?1 ?1 ?1
D-E Not used ? ? Terminator
E-F Not used ? ? SIPs, pin-1
F-G Continuous test seeks ? ? toward rear.
G-H Motor Start option enable ? ?
? ?? Parity check
?
Drive Select ID ?
(ID 0 for single
drive system)
ST-2125N
94221-125/M WREN 5 HH
UNFORMATTED CAPACITY (MB) ________________125
FORMATTED CAPACITY (xx SECTORS) (MB) _____107
AVERAGE SECTORS PER TRACK ________________45
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________4632
CYLINDERS ________________________________1544
HEADS ____________________________________3
DISCS ____________________________________2
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________ZBR RLL (2,7)
TRANSFER RATE (mbytes/sec) _______________1.125-1.875
SPINDLE SPEED (RPM) ______________________3,600
AVERAGE LATENCY (mSEC) ___________________8.33
BUFFER ___________________________________32 Kbyte
Read Look-Ahead, Non-Adaptive,
Single-Segmented Buffer
INTERFACE ________________________________SCSI
TPI (TRACKS PER INCH) ____________________1280
BPI (BITS PER INCH) ______________________19213
AVERAGE ACCESS (ms) ______________________18
SINGLE TRACK SEEK (ms) ___________________4
MAX FULL SEEK (ms) _______________________40
MTBF (power-on hours) ____________________100,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.5
+12V TYPICAL (amps) __0.9
+5V START-UP (amps) __1.3
+5V TYPICAL (amps) ___1.0
TYPICAL (watts) ______16
MAXIMUM (watts) ______61
BUFFERED STEP PULSE RATE (micro sec) _____
WRITE PRECOMP (cyl) ______________________N/A
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________0 or NONE
Already low-level formatted at the factory.
ZBR = Zone Bit Recording = Variable sectors per track
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)