1.11 Advanced Power Management
C141-E192-01EN 1-13
Active Idle: The head is in a position of extreme inner in disk medium.
(VCM Lock)
Low power Idle: The head is unloaded from disk. (VCM Unload)
The spindle motor rotates.
Standby: The spindle motor stops.
APM Mode
Active Idle
(VCM Lock)
Low Power Idle
(VCM 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.
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