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SEAGATE ENTERPRISE CAPACITY 3.5 HDD V4 SAS PRODUCT MANUAL, REV. A 29
4TB models in 6Gb operation
Please refer to Table 3 for power dissipation numbers.
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 the 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 6. 4TB models (6Gb) DC current and power vs. input/output operations per second
4TB models in 12Gb operation
Please refer to Table 3 for power dissipation numbers.
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 5.). Locate the typical I/O
rate for a drive in the 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. 4TB models (12Gb) DC current and power vs. input/output operations per second