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st125a.txt
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1991-03-15
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SEAGATE TECHNOLOGY, INC.
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 1991
ST-125A
/───────\
│O O O O│
└5─G─G─12
═════════════════════════════════════
o o o ....................1
o o o ....................
│ │ │
│ 0 1 Single Drive 0=open
│ 1 1 Dual-Drive Master 1=closed
│ 1 0 Dual-Drive Slave
│
└───── Optional External LED
ST - 125A
UNFORMATTED CAPACITY (MB) ________________25
FORMATTED CAPACITY (26/17 SECTORS) (MB) __21.5
ACTUATOR TYPE ____________________________STEPPER
TRACKS ___________________________________1,616
CYLINDERS ___PHYSICAL/LOGICAL_____________404/615
HEADS ____________________________________4
DISCS ____________________________________2
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________RLL
TRANSFER RATE (mbits/sec) ________________7.5
INTERFACE ________________________________AT BUS
TPI (TRACKS PER INCH) ____________________824
BPI (BITS PER INCH) ______________________16,546
AVERAGE ACCESS (ms) ______________________40/28*
SINGLE TRACK SEEK (ms) ___________________8
MTBF (power-on hours) ____________________150,000
POWER REQUIREMENTS: +12V START-UP (amps) _2.0
+12V TYPICAL (amps) __0.35
+5V TYPICAL (amps) ___0.9
TYPICAL (watts) ______9
MAXIMUM (watts) ______29
BUFFERED STEP PULSE RATE (micro sec) _____3-200
WRITE PRECOMP (cyl) ______________________N/A (405)
REDUCED WRITE CURRENT (cyl) ______________N/A (405)
LANDING ZONE (cyl)________________________AUTO PARK
IBM AT DRIVE TYPE ________________________6
*ST125A-0/ST125A-1
PHYSICAL/LOGICAL equivalent to NATIVE/TRANSLATION
!WARNING! - Already low-level formatted at the factory.
Since a User-definable or Custom translation geometry may
be used, it is imperative that the values be written down
and kept with your permanent records for retrieval in the
event of CMOS battery failure.
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)