Seagate ST1000NM0031 Manuel D’Utilisation

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The drive provides programmable power management to provide greater energy efficiency. In most systems, you can control power 
management through the system setup program. The drive features the following power-management modes:

• Active mode 

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

• Idle mode

The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disc access is necessary.

• Standby mode 

The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set the standby timer, the drive 
can also enter Standby mode automatically after the drive has been inactive for a specifiable length of time. The standby timer delay is 
established using a Standby or Idle command. In Standby mode, the

 

drive buffer is enabled, 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.

• Sleep mode

The drive enters Sleep mode after receiving a Sleep command from the host.

 

In Sleep mode, the drive buffer is disabled, the heads are 

parked and the spindle is at rest. The drive leaves Sleep mode after it receives a Hard Reset or Soft Reset from the host. After receiv-
ing a reset, the drive exits Sleep mode and enters Standby mode with all current translation parameters intact.

• Idle and Standby timers

Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and begins counting down from 
its specified delay times to zero. If the standby timer reaches zero before any drive activity is required, the drive makes a transition to 
Standby mode. In both Idle and Standby mode, the drive accepts all commands and returns to Active mode when disc access is neces-
sary.

Active

Tracking

Rotating

Enabled

Idle_a

ID Biased

Rotating

Enabled

Idle_b

Parked

Rotating

Enabled

Idle_c

Parked

Rotating at lower RPM

Enabled

Standby

Parked Stopped

Enabled

Sleep

Parked

Stopped

Disabled