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For more information about Quantum's quality products, call
toll-free: 1-800-624-5545 in the U.S.A. and Canada, or visit our
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Specifications subject to change without notice.
© 1996 Quantum Corporation. All rights reserved. Quantum, the Quantum logo, DisCache,
WriteCache, and Defect Free Interface are trademarks of Quantum Corporation registered in
the U.S.A. and other countries. Capacity for the Extraordinary, Quantum Bigfoot, AutoTransfer,
AutoRead, AutoWrite, AT-Bus Cable Select, and Diskware are trademarks of Quantum
Corporation. Products mentioned herein are for identification purposes only and may be
trademarks or registered trademarks of their respective companies.
Printed in the U.S.A. 52.5k DF/CRFTSMN bfnw0996
Quantum Bigfoot 1.2 2.1 2.5
Form Factor 5.25 inch (Ultra Slim-Line)
Interface Fast ATA-2
40-pin dual in-line
Formatted Capacity (MB
1
) 1,286 2,110 2,577
Disk Drive Configuration
Disks 1 2 2
Heads/Recording Surfaces 2 4 4
Tracks per Surface 5,738
Sectors per Track 149 to 276
Bytes per Sector 512
Track Density (tpi) 4,298
Max. Flux Density (fci) 113,922
Max. Recording Density (bpi) 107,221
Encoding/Detection Method 16/17 PRML
Performance Specifications
Typical Seek Times
2
(ms)
Average (read) 15.5
Track-to-Track 3.5
Full Stroke 30.0
Average Rotational Latency (ms) 8.33
Rotational Speed (RPM) 3,600
Internal Data Rate (Mb/sec) 48 to 84
Data Transfer Rates (MB/sec)
PIO Mode 4 16.6
DMA Mode 2 16.6
Buffer Size
3
(KB) 128
Typical Power On to Drive Ready (sec) 11.5
Reliability Specifications
Projected Field MTBF (hours) 300,000
Start/Stop Cycles (controlled) 20,000 with dynamic braking
Preventive Maintenance Not required
Nonrecoverable Data Errors (per bits read) <10 per 10
15
Error-Correction Method 160-bit Reed Solomon
Warranty
4
(years) 3
Physical Specifications
Dimensions—inches (mm)
Width 5.75 (146.05) 5.75 (146.05) 5.75 (146.05)
Length 8.0 (203.2) 8.0 (203.2) 8.0 (203.2)
Height 0.75 (19.05) 0.75 (19.05) 0.75 (19.05)
Weight—pounds (kg) 1.55 (0.711) 1.64 (0.752) 1.64 (0.752)
Environmental Limits
Operating
Temperature (°C) 0 to 55
Non-Condensing Humidity (%) 5 to 85
Maximum Wet Bulb (°C) 29
Shock (G, 11ms) 10
Vibration (G, 5 to 200 Hz,
peak-to-peak) 1
Altitude (ft.) -650 to 10,000
Non-Operating
Temperature (°C) -40 to 75
Non-Condensing Humidity (%) 5 to 95
Maximum Wet Bulb (°C) 46
Shock (G, 11ms) 70
Vibration (G, 5 to 300 Hz,
peak-to-peak) 2
Altitude (ft.) -650 to 40,000
Idle Sound (typ)
Pressure (dBA) 34
Power (bels) 3.9
Power Specifications
Nominal Voltage (V) +5/+12
Voltage Margin (%) ±5/±10
Typical Power Draw (W)
Read/Write 5.0 5.5 5.5
Standby/Sleep 1.0 1.0 1.0
Idle 4.0 4.5 4.5
Operating
5
6.5 7.0 7.0
Peak Current (mA on +5/+12) 425/1400
1
Quantum defines a megabyte (MB) as 10
6
or 1,000,000 bytes.
2
Seek times are at nominal environmental conditions and include settling.
3
Up to 41KB used for firmware.
4
This warranty is standard when products are purchased directly through
authorized Quantum distributors/dealers. Unless otherwise agreed, a one-year
warranty is provided to all OEMs purchasing directly from Quantum.
End-user warranties provided by computer manufacturers may vary.
5
Operating is defined as 40% seeking, 30% reading, 10% writing, and 20% idle.
Quantum Corporation
500 McCarthy Boulevard
Milpitas, California 95035 U.S.A.
1-800-624-5545
http://www.quantum.com
European Headquarters
Quantum Peripheral Products S.A.
ICC-Building D
Route de Pre-Bois 20
1215 Geneva Airport, Switzerland
41 22 929 9111
Quantum Asia-Pacific Pte Ltd.
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Suntec Tower 2
Singapore 038989
65 334 0880
Quantum Peripherals Japan
Shinjuku Square Tower 4F
6-22-1 Nishi-Shinjuku
Shinjuku-ku, Tokyo, 163-11 Japan
813 5321 7900