Seagate Constellation ST4000NM0023 Product Manual page 36

Constellation es.3 sas standard models,sed (fips 140-2) models,self-encrypting drive models

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2TB models in 3Gb operation

Please refer to Table 4 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 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 9.

2TB models (3Gb) DC current and power vs. input/output operations per second

2TB models in 6Gb operation

Please refer to Table 4 for power dissipation numbers.

To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 6.). 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 10.

2TB models (6Gb) DC current and power vs. input/output operations per second

ES.3 SAS P

ONSTELLATION

, R

. C

RODUCT

ANUAL

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