Seagate ST3300657SS Cheetah 15K.7 SAS Product Manual - Page 33
volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour,
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ST3450857SS 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 Cheetah 15K.7 SAS Product Manual, Rev. B 27
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Cheetah 15K.7 SAS Product Manual, Rev. B
27
ST3450857SS
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