
ST3500414SS and ST3500415SS in 3Gb operation
Please refer to Table 2 for power dissipation numbers.
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 8). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by 3.4123.
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| ST3500414SS CURRENT/POWER vs THROUGHPUT (SAS - 3.0GB) |
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| Random 8 Block Reads |
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| 10 | 5Volt A |
| 0.9 |
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| 9 | 12 Volt A |
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| 0.8 |
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| 0.7 |
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| 7 | P |
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s | 0.6 |
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p 0.5 |
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A0.4 |
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| 0 | 20 | 40 | 60 | 80 | 100 | 120 | 140 | 160 | 180 |
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I/Os per Second
Figure 8. ST3500414SS & ST3500415SS (3Gb) DC current and power vs. input/output operations per second
Note. For power details about SED vs.
ConstellationES Series SAS Product Manual, Rev. D | 33 |