Seagate Cheetah 15K Product Manual page 37
Cheetah 15k.6 sas serial attached scsi disk drives
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(FDE) model
ST3300056SS
Typical power dissipation under idle conditions in 3Gb operation is 10.42 watts (35.56 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 7.
ST3300056SS (FDE), 3 Gbit, DC current and power vs. input/output operations per second
Cheetah 15K.6 SAS Product Manual, Rev. B
33
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