Seagate ST3300457FC Cheetah 15K.7 SAS Product Manual - Page 34

volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour,

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450GB model Typical power dissipation under idle conditions in 6Gb operation is 9.97 watts (34.02 BTUs per hour). To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 4). 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. Figure 5. ST3450857SS DC current and power vs. input/output operations per second 28 Cheetah 15K.7 SAS Product Manual, Rev. C

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28
Cheetah 15K.7 SAS Product Manual, Rev. C
450GB
model
Typical power dissipation under idle conditions in 6Gb operation is 9.97 watts (34.02 BTUs per hour).
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure
4). 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.
Figure 5.
ST3450857SS DC current and power vs. input/output operations per second