Seagate ST380023AS Manual download pdf (Page 24)

14 Barracuda Serial ATA V Product Manual, Rev. B

• 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 disc access is necessary.

2.10 Environmental specifications

2.10.1 Ambient temperature

Ambient temperature is defined as the temperature of the environment

immediately surrounding the drive. Actual drive case temperature should not

exceed

69°C (156°F) within the operating ambient conditions. Recom-

mended measurement locations are shown in Figure 3 on page 23.

Above 1,000 feet (305 meters), the maximum temperature is derated linearly

to 112°F (44°C) at 10,000 feet (3,048 meters).

Operating 0° to 60°C (32° to 140°F)

Nonoperating –40° to 70°C (–40° to 158°F)

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Seagate ST380023AS Manual Page 24