Seagate Laptop Thin SSHD SATA Product Manual, Rev. E
11
Drive Specifications
2.7.4
Power management modes
The drive provides programmable power management to provide greater energy efficiency. In most systems, power management is controlled
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.
2.8
Environmental Specifications
This section provides the temperature, humidity, shock, and vibration specifications for Seagate Laptop Thin SSHD drives.
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.
Above 1000 feet (305 meters), the maximum temperature is derated linearly by 1°C every 1000 feet.
Power Modes
Heads
Spindle
Buffer
Active (operating)
Tracking
Rotating
Full power
Idle, performance
Tracking
Rotating
Self refresh—low power
Idle, active
Floating
Rotating
Self refresh—low power
Idle, low power
Parked
Rotating
Self refresh—low power
Standby
Parked
Stopped
Self refresh—low power
Sleep
Parked
Stopped
Self refresh—low power
Table 5: Environmental specifications
Parameters
Operating
Non-Operating
Ambient temperature
0° to 60°C (32° to 140°F)
-40° to 70°C (-40° to 158°F)
Temperature gradient
20°C per hour (68°F per hour) max,
without condensation
35°C per hour (95°F per hour) max,
without condensation
Humidity
5% to 95% non-condensing
(30% per hour)
5% to 95% non-condensing
(30% per hour)
Wet bulb
37.7°C (99.8°F) max
40°C (104°F) max
Altitude
-304.8m to 3048m
(-1000ft to 10,000ft)
-304.8m to 12,192m
(-1000ft to 40,000ft)
N
OTE
The recommended storage period:
•
1 year under controlled conditions of 34
°
C 90%RH or less
•
90 days in uncontrolled storage conditions
