C
ONSTELLATION
ES.1 SAS P
RODUCT
M
ANUAL
, R
EV
. G
25
6.4
P
OWER DISSIPATION
2TB models in 3Gb 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 4). Locate the typical I/O rate
for a drive in your system on the horizontal axis and read the corresp5 volt current, +12 volt current, and total watts on the vertical
axis. To calculate BTUs per hour, multiply watts by 3.4123.
Figure 4.
2TB models (3Gb) 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.