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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)
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? United States +1 408 438-8771 ? United Kingdom +44 628 478011 ?
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? Germany +49 89 140-9331 ? Singapore +65 227-2217 ?
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(C)opyright 1991
ST-279R (94205-77) Wren 2 HH ST412 RLL
Drive Select ???????????
o o o o o o o 1 Terminator ? O O O O ? Power
o o o o o o o ?????????????? \?????????\
1 2 3 4 R r reserved ?????????????? 12 G G 5
?????????? ?? ?????????????????????? ??? ??????????????????
? ? ??Controller Cable
? ???Radial
?????????If twisted cable, use Drive Select 2
ST-279R
94205-77 WREN 2 HH
UNFORMATTED CAPACITY (MB) ________________77
FORMATTED CAPACITY (26 SECTORS) (MB) _____65
ACTUATOR TYPE ____________________________VOICE COIL
TRACKS ___________________________________4,945
CYLINDERS ________________________________989
HEADS ____________________________________5
DISCS ____________________________________3
MEDIA TYPE _______________________________OXIDE
RECORDING METHOD _________________________RLL
TRANSFER RATE (mbits/sec) ________________7.5
SPINDLE SPEED (RPM) ______________________3,600
INTERFACE ________________________________ST412
TPI (TRACKS PER INCH) ____________________960
BPI (BITS PER INCH) ______________________14,302
AVERAGE ACCESS (ms) ______________________28
SINGLE TRACK SEEK (ms) ___________________5
MTBF (power-on hours) ____________________40,000
POWER REQUIREMENTS: +12V START-UP (amps) _4.5
+12V TYPICAL (amps) __1.5
+5V START-UP (amps) __1.0
+5V TYPICAL (amps) ___0.4
TYPICAL (watts) ______20
MAXIMUM (watts) ______??
BUFFERED STEP PULSE RATE (micro sec) _____8-200
WRITE PRECOMP (cyl) ______________________128
REDUCED WRITE CURRENT (cyl) ______________N/A
LANDING ZONE (cyl) _______________________AUTO PARK
IBM AT DRIVE TYPE ________________________*
* MAY REQUIRE A CONTROLLER WITH BIOS SUPPORT, OR FORMATTING
AND PARTITIONING SOFTWARE. ALSO, CHECK TO SEE IF YOUR CMOS SETUP
HAS A "CUSTOM" OR "USER DEFINABLE" DRIVE TYPE AVAILABLE.
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)