Seagate Lyrion Series ユーザーズマニュアル

10

Lyrion CE-ATA Product Manual, Rev. A

The drive provides programmable power management to provide greater energy efficiency. The drive features 
the following power-management modes:

The drive is in Active mode during the read/write and seek operations.

The drive enters this mode once the read/write/seek activity is completed. The buffer remains enabled, and 
the drive accepts all commands and returns to Active mode any time disc access is necessary.

Drive enters Low Power Idle mode from Performance Idle mode when the Advanced Power Management 
Level is set between 80h and FDh, and the Idle timer reaches 2 seconds (default setting). Disc is spinning 
and heads are parked and drive accepts all commands and returns to Active mode any time disc access is 
necessary.

The drive enters Standby mode when the host sends a Standby Immediate command. When the Advanced 
Power Management Level is set lower than 80h (default setting), the drive enters the Standby state after 2 
seconds of interface inactivity. If the host has set the standby timer, the drive may also enter the Standby 
mode after the expiry of the standby timer. The standby timer can be set using the Standby or Idle command. 
In Standby mode, the

 

drive buffer is disabled, the heads are parked and the spindle is at rest. The drive accepts 

all commands and returns to Active mode any time disc access is necessary.

Active (read/write/seek)

Tracking

Rotating

Enabled

Idle, performance

Tracking

Rotating

Enabled

Idle, low power

Parked

Rotating

Disabled

Standby/Sleep

Parked

Stopped

Disabled