2.0Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate ST9100823AB, ST9808211AB, ST960822AB, and ST9408114AB model drives.
2.1Specification summary
The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.
Table 1: | Specifications |
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Drive specification | ST9100823AB | ST9808211AB | ST960822AB | ST9408114AB | |
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Formatted Gbytes (512 bytes/sector) | 100 | 80 | 60 | 40 | |
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Guaranteed sectors | 195,371,568 | 156,301,488 | 117,210,240 | 78,140,160 | |
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Bytes per sector | 512 |
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Physical read/write heads | 4 | 3 | 3 | 2 | |
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Discs |
| 2 | 2 | 2 | 1 |
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Cache (Mbytes) | 8 |
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Recording density, BPI (bits/inch typical) | 703,000 |
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Track density. TPI (tracks/inch typical) | 115,000 |
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Areal density (Gbits/inch2 max) | 86 |
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Spindle speed (RPM) | 5,400 |
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Internal data transfer rate OD | 48.25 |
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(Mbytes/sec max) |
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I/O | 100 |
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ATA | PIO modes | ||||
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Height |
| 9.5 |
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Width |
| 69.85 |
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Length |
| 100.2 |
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Weight (typical) | 100 grams (0.22 lb) |
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Average latency (msec) | 5.6 |
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3.5 |
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Standby to ready (sec typical) | 3.0 |
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Startup current 5V (typical) | 1.0 amps |
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1.0 (read), 1.5 (write) |
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Average seek time (msec typical) | 12.5 |
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Average seek, read (msec typical) | 12.5 |
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Average seek, write (msec typical) | 14.5 |
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22 (typical); 24 (max) |
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Seek power (typical) | 2.3 watts |
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Momentus 5400.2 Blade Server Product Manual, Rev. B | 3 |