
| 1 Hardware Overview | 
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 | 1.4  | ||
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 | Table  | ||||
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| 
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 | Specifications | 
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| 
 | Items | 
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| 
 | HITACHI | 
 | HITACHI | 
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| 
 | 
 | G8BC0000F310 | 
 | G8BC00009110 | 
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| 
 | Storage size (formatted) | 30GB | 
 | 40GB | 
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| 
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| 
 | Speed (RPM) | 4,200 | 
 | 5,400 | 
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| 
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| 
 | Data transfer speed (Mbits/s) | 22.1 – 42.8 | 
 | 27.8 – 44.1 | 
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| 
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 | Interface transfer rate (MB/s) | 100 (MAX Ultra DMA mode) | 
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 | Storage desnity (Kbpi) | 716 | 
 | 612 | 
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| 
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 | Track density (Ktpi) | 70.0 | 
 | 63.0 | 
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| 
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 | Average random seek time | 
 | 13 | 
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 | (read) (ms) | 
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 | Motor startup time (ms) | 
 | 5 | 
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| 
 | Table  | ||||
| 
 | 
 | 
 | |||
| 
 | 
 | Specifications | 
 | ||
| 
 | Items | 
 | 
 | 
 | 
 | 
| 
 | IBM | 
 | IBM | 
 | |
| 
 | 
 | G8BC00004210 | 
 | G8BC0000A110 | 
 | 
| 
 | Storage size (formatted) | 30GB | 
 | 40GB | 
 | 
| 
 | 
 | 
 | 
 | 
 | 
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| 
 | Speed (RPM) | 4,200 | 
 | 5,400 | 
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| 
 | 
 | 
 | 
 | 
 | 
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| 
 | Data transfer speed (Mbits/s) | 125 – 241 | 
 | 160 – 297 | 
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| 
 | 
 | 
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 | 
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| 
 | Interface transfer rate (MB/s) | 
 | 100 | 
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| 
 | 
 | 
 | 
 | 
 | 
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| 
 | Storage desnity (Kbpi) | 509 | 
 | 506 (MAX) | 
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| 
 | 
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 | 
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| 
 | Track density (Ktpi) | 
 | 66.4 | 
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| 
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| 
 | Average random seek time | 
 | 12 | 
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| 
 | (read) (ms) | 
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| 
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| 
 | Motor startup time (ms) | 
 | 5 | 
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| 
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| TECRA M1 Maintenance Manual  | 
