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st238r.txt
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1993-06-14
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SEAGATE TECHNOLOGY, INC.
Technical Support Bulletin Board
408/438-8771 [300-9600 HST, MNP 3/5, N-8-1]
(C)opyright 1990
ST-238R
/─4─3─2─1─\
│ O O O O │ Power
o o o o o o o o └─────────┘
┌Data Cable o o o o o o o o ┌Controller Cable 1 5 G G 12
═════════ ══ │ │ │ │ │ │ │ │ ════════════════════ ═══ ════════════
│ │ │ │ │ │ │ │ ┌────────────1
│ │ │ │ │ │ │ │ └─Terminator─┘
│ │ │ │ │ │ │ │
Drive Select->1 2 3 4 │ │ │ └ Radial
│ │ │ │ │ └── Reserved
│ └┬┘ │ └──── Write Fault
│ │ └────── Factory Test
│ └───────── Never Used (Drive Select 3 and 4)
└ If twisted cable, use Drive Select 2
ST - 238R
UNFORMATTED CAPACITY (MB) ________________38.4
FORMATTED CAPACITY (26 SECTORS) (MB) _____32.7
ACTUATOR TYPE ____________________________STEPPER
TRACKS ___________________________________2,460
CYLINDERS ________________________________615
HEADS ____________________________________4
DISCS ____________________________________2
MEDIA TYPE _______________________________OXIDE
RECORDING METHOD _________________________RLL
TRANSFER RATE (mbits/sec) ________________7.5
INTERFACE ________________________________ST412
TPI (TRACKS PER INCH) ____________________588
BPI (BITS PER INCH) ______________________14,740
AVERAGE ACCESS (ms) ______________________65
SINGLE TRACK SEEK (ms) ___________________20
MTBF (power-on hours) ____________________100,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.4
+12V TYPICAL (amps) __0.9
+5V TYPICAL (amps) ___0.8
TYPICAL (watts) ______14.8
MAXIMUM (watts) ______33
BUFFERED STEP PULSE RATE (micro sec) _____5-200
WRITE PRECOMP (cyl) ______________________N/A (616)
REDUCED WRITE CURRENT (cyl) ______________N/A (616)
LANDING ZONE (cyl)________________________670
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)