Fujitsu MHY2040BH, MHY2160BH, MHY2200BH, MHY2250BH, MHY2100BH, MHY2120BH Advanced Power Management

	1.11 Advanced Power Management (APM)
Low Power Idle:	The head is unloaded from disk.
	The spindle motor rotates.
Standby:	The spindle motor stops.

In APM Mode-1, which is the APM default mode, the operation status shifts till it finally reaches "Low Power Idle."

Table 1.7 Advanced Power Management

APM Mode	Active Idle
	(VCM Lock)
Mode-0	0.2-1.2 sec
Mode-1	0.1-0.2 sec
Mode-2	0.1-0.2 sec

Low Power Idle

(Unload)

15min.

10.0-27.5 sec

10.0-27.5 sec

Standby

(Spin Off)

N/A

N/A

10.0-40.0 sec

When the maximum time that the HDD is waiting for commands has been exceeded:

Mode-0: Mode shifts from Active condition to Active Idle in 0.2-1.2, and to Low Power Idle in 15 minutes.

Mode-1: Mode shifts from Active condition to Active Idle in 0.1-0.2 seconds and to Low Power Idle in 10.0-27.5 seconds.

Mode-2: Mode shifts from Active condition to Active Idle in 0.1-0.2 seconds and to Low Power Idle in 10.0-27.5 seconds. After 10.0-40.0 seconds in Low Power Idle, the mode shifts to standby.

Remark:

The default values of these settings are reflected in the WORD 91 values of the IDENTIFY DEVICE command. Also, the APM mode is initialized to Mode-1 (default value) at power-off.

The above mentioned is time until shifting to each power mode based on point that the drive becomes a command waiting state.

C141-E262 1-15