Power-management modes. Seagate SkyHawk ST1000VX005

www.seagate.com

Drive Specifications

2.6.5 Power-management modes

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

Power modes

Active

Idle

Standby

Sleep

Heads

Tracking

Spindle

Rotating

Tracking Rotating

Parked Stopped

Parked Stopped

Buffer

Enabled

Enabled

Enabled

Disabled

• 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.

2.7

Environmental specifications

This section provides the temperature, humidity, shock, and vibration specifications for NAS HDDs. This section provides the temperature, humidity, shock, and vibration specifications.

2.7.1 Drive case temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Above 1000ft. (305 meters), the maximum temperature is derated linearly by 1°C every 1000 ft. Drive case temperature should be measured at the location indicated in

Figure 6

.

2.7.2 Temperature

Non-operating (Ambient) –40° to 70°C (–40° to 158°F)

Operating ambient (min °C) (8TB & 6TB models) 5° (41°F)

Operating ambient (min °C) (1-4TB models)

Operating (Drive case max °C)

0° (32°F)

70 † (158°F)

†

Seagate does not recommend operating at sustained case temperatures above 60

Operating at higher temperatures will reduce useful life of the product.

° C.

Seagate SkyHawk Product Manual, Rev. L 16