Seagate ST9250610NS Constellation SAS Product Manual - Page 34
Power dissipation
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7.4 Power dissipation ST9500430SS, ST9500431SS and ST9500432SS in 3 Gbit 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 2). 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 2. 500GB (3 Gbit) DC current and power vs. input/output operations per second Note. For power details about SED vs. non-SED drive, please refer to section 7.8. 26 Constellation SAS Product Manual, Rev. F
26
Constellation SAS Product Manual, Rev. F
7.4
Power dissipation
ST9500430SS, ST9500431SS and ST9500432SS in 3 Gbit 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
2). 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 2.
500GB (3 Gbit) DC current and power vs. input/output operations per second
Note.
For power details about SED vs. non-SED drive, please refer to section 7.8.