Seagate ST5000DM000 Manual download pdf (Page 16)

16 Desktop HDD SATA Product Manual, Rev. A

Drive Specifications www.seagate.com

2.8.3 Voltage tolerance

Voltage tolerance (including noise):

•5V

±5%

• 12V

±10%

2.8.4 Power-management modes

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 disk

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 disk 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 receiving 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 disk access is necessary.

2.9 Environmental specifications

This section provides the temperature, humidty, shock, and vibration specifications for Desktop HDDs. Ambient

temperature is defined as the temperature of the environment immediately surrounding the drive. Above 1000ft.

(305 meters), the maximum temerature is derated linearly by 1°C every 1000 ft. Refer to Section 3.4 on page 24

for base plate measurement location.

Note

Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.

Power modes Heads Spindle Buffer

Active Tracking Rotating Enabled

Idle Tracking Rotating Enabled

Standby Parked Stopped Enabled

Sleep Parked Stopped Disabled

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Seagate ST5000DM000 Manual Page 16

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