Table 1.7 Advanced Power Management - Fujitsu MHW2120BK Maintenance Manual

Device Overview
Low Power Idle:
Standby:
In APM Mode-1, which is the APM default mode, the operation status shifts till it
finally reaches "Low Power Idle."
APM Mode
Mode-0
Mode-1
Mode-2
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 3-4, and to Low
Mode-1: Mode shifts from Active condition to Active Idle in 3-4 seconds and to
Mode-2: Mode shifts from Active condition to Active Idle in 3-4 seconds and to
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.
1-14
The head is unloaded from disk.
The spindle motor rotates.
The spindle motor stops.

Table 1.7 Advanced Power Management

Active Idle
(VCM Lock)
3-4 sec
3-4 sec
3-4 sec
Power Idle in 15 minutes.
Low Power Idle in 10-40 seconds.
Low Power Idle in 10-40 seconds.
Low Power Idle
(Unload) (Spin Off)
15 min.
10-40 sec
10-40 sec
Standby
N/A
N/A
N/A
C141-E261