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Momentus 5400.3 SATA Blade Server Product Manual, Rev. E
• Idle mode power
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in
a random track location.
• Standby mode
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/
write electronics are in power-down model
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and
power to operational levels.
Figure 1. Typical +5V startup and operation current profile
Table 3: DC power
Power dissipation +5V input average (25° C)
Spinup 1.0 A
Seek 2.0 watts
Read 1.9 watts
Write 1.8 watts
Idle, performance mode* 1.4 watts
Idle, active* 0.75 watts
Idle, low power mode* 0.6 watts
Standby 0.2 watts
Sleep 0.2 watts