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st125.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-125
/───┐
│ O │12
│ O │G
│ O │G
│ O │5
┌Data Cable ┌Controller Cable 1 \───┘
═════════ ══ ════════════════════ ═══ ════════════
o o o o o o o o ┌────────────1
o o o o o o o o └──┬─────────┘
│ │ │ │ 4 3 2 1 └ Resistor Termination Pack
│ │ │ │ ───┬───
│ │ │ │ │
│ │ │ │ └──── Drive Selects
│ │ │ └───────── Factory Test
│ │ └─────────── Write Fault
│ └───────────── Not Used
└─────────────── Radial
ST - 125
UNFORMATTED CAPACITY (MB) ________________25.6
FORMATTED CAPACITY (17 SECTORS) (MB) _____21.4
ACTUATOR TYPE ____________________________STEPPER
TRACKS ___________________________________2,460
CYLINDERS ________________________________615
HEADS ____________________________________4
DISCS ____________________________________2
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________MFM
TRANSFER RATE (mbits/sec) ________________5.0
INTERFACE ________________________________ST506
TPI (TRACKS PER INCH) ____________________824
BPI (BITS PER INCH) ______________________14,953
AVERAGE ACCESS (ms)*______________________40/28
SINGLE TRACK SEEK (ms) ___________________8
MTBF (power-on hours) ____________________70,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.0
+12V TYPICAL (amps) __0.35
+5V TYPICAL (amps) ___0.8
TYPICAL (watts) ______8
MAXIMUM (watts) ______28
BUFFERED STEP PULSE RATE (micro sec) _____3-200
WRITE PRECOMP (cyl) ______________________N/A (616)
REDUCED WRITE CURRENT (cyl) ______________N/A (616)
LANDING ZONE (cyl)________________________AUTO PARK
IBM AT DRIVE TYPE ________________________6
*ST125-0/ST125-1
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)