FUJITSU MHT2060BH User Manual

Page 35

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1.11 Advanced Power Management

C141-E203-01EN 1-13

Active Idle:

The head is in a position of extreme inner in disk medium.

Low Power Idle:

The head is unloaded from disk.
The spindle motor rotates.

Standby:

The spindle motor stops.

Table 1.7 Advanced power management

APM Mode

Active Idle

Low Power Idle

(Unload)

Standby

(Spin Off)

Mode-0

0.2-1.2 sec

15 min.

N/A

Mode-1

0.2-1.2 sec

10.0-40.0 sec

N/A

Mode-2

0.2-1.2 sec

10.0-40.0 sec

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 0.2-1.2 seconds and

to Low Power Idle in 10.0-40.0 seconds.

Mode-2: Mode shifts from Active condition to Active Idle in 0.2-1.2 seconds and

to Low Power Idle in 10.0-40.0 seconds. After 10.0-40.0 seconds in
Low Power Idle, the mode shifts to standby.

*

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) by a hardware reset and at power-off.

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