Compaq Prolinea Family - Chapter 8.7 Hard Drives

Transfer Rate (bps)
(high/low density) 500 K/250 K 500 K/300 K
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Bytes Per Sector 512 512
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Sectors Per Track
(high/low density) 18/9 15/9
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Tracks Per Side
(high/low density) 80/80 80/40
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Seek Time (ms):
Track-to-Track (high/low density) 3/3 3/10
Average (high/low density) 94/94 80/133
Settling Time 15 15
Latency Average 100 84
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Cylinders (high/low) 80/80 80/40
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Read/Write Heads 2 2
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Chapter 8.7 Hard Drives
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270 MB 270 MB 420 MB 420 MB 540 MB
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Formatted Capacity:
Physical (MB) 270.6 272.7 421.9 428.1 528.4
Logical (MB) 270.6 272.7 421.9 428.1 541.3
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Compaq Part Number 172772 172773 172774 189586 172851
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Drive Type 65 65 65 65 65
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Transfer Rate:
Media (Mbits/sec) 36.0 35.8 27.9 32.0 36.0
Interface
(MB/sec) 13.3 13.3 13.3 13.3 13.3
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Typical Seek Time
(including settling):
Single Track (ms) 5.0 5.0 5.0 5.0 5.0
Average (ms) 14.0 14.0 14.0 14.0 14.0
Full Stroke (ms) 28.0 34.0 28.0 34.0 28.0
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Disk Rotational
Speed (rpm) 3600 3811 3600 3811 3600
Cylinders:
Physical 2853 3063 2519 2890 2853
Logical 944 761 1010 899 1926
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Data Heads:
Physical 2 2 4 4 4
Logical 14 14 16 15 9
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Sectors per Track:
Physical 58 - 118 60 - 105 55 - 104 53 - 92 58 - 118