Seagate Lyrion Series ユーザーズマニュアル
Lyrion CE-ATA Product Manual, Rev. A
7
2.7
Power specifications
The drive receives DC power (+3.3V) through the ZIF connector (CE-ATA interface).
2.7.1
Power consumption
Power requirements for the drives are listed in the table on page 8. Typical power measurements are based on
an average of drives tested, under nominal conditions, using +3.3V input voltage at 25°C ambient temperature.
an average of drives tested, under nominal conditions, using +3.3V input voltage at 25°C ambient temperature.
• Startup mode
Startup power is measured from the time of power-on to the time that the drive spindle reaches operating speed.
• Seek mode
During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and does
not execute a read or write operation. Servo electronics are active. Seek power is measured based on three
random seek operations every 100 msecs.
not execute a read or write operation. Servo electronics are active. Seek power is measured based on three
random seek operations every 100 msecs.
• Read/write mode
Read/write power is measured with the heads on track, while the head is reading/writing from/to disc. It is
performed with 100 percent duty cycle of read/write operation.
performed with 100 percent duty cycle of read/write operation.
• Performance Idle mode
During Performance Idle mode, the heads are on track but no reading or writing is done. The spindle motor is
spinning at full speed.
spinning at full speed.
• Low power idle mode
During Low power Idle mode, the heads are unloaded but the spindle motor is spinning at full speed. Servo
and read/write electronics are in powered down mode.
and read/write electronics are in powered down mode.
• Standby / Sleep mode
During Standby/Sleep mode, the spindle motor is not spinning, and the servo and read/write electronics are
in powered down mode.
in powered down mode.