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ST157N.TXT
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1990-07-24
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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-157N
/───┐
│ O │12
│ O │G
│ O │G
│ O │5
\───┘
════════════════════════════════════════════════
o o o o o .........................
o o o o o .........................
1 2 4 │ P ┌──────1┌──────1┌──────1
──┬── │ │ └──────┘└──────┘└──────┘
│ │ │ └ Resistor Termination Packs
│ │ │
│ │ └─ Parity Check enable
│ └─── Not Used
└─────── Drive ID's, ID 0 (none) for single drive system
ST - 157N
UNFORMATTED CAPACITY (MB) ________________57
FORMATTED CAPACITY (26 SECTORS) (MB) _____48.6
ACTUATOR TYPE ____________________________STEPPER
TRACKS ___________________________________3,678
CYLINDERS ________________________________615
HEADS ____________________________________6
DISCS ____________________________________3
MEDIA TYPE _______________________________THIN FILM
RECORDING METHOD _________________________RLL
TRANSFER RATE (mbits/sec) ________________7.5
INTERFACE ________________________________SCSI
TPI (TRACKS PER INCH) ____________________824
BPI (BITS PER INCH) ______________________22,430
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) ___0.9
TYPICAL (watts) ______9
MAXIMUM (watts) ______29
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 ________________________NONE
*ST157N-0/ST157N-1
**MAY REQUIRE PARTITIONING SOFTWARE
Seagate reserves the right to change, without notice, product
offerings or specifications. (6/26/90)