Seagate ST3000VN000 Power-management modes, Environmental specifications, Drive case temperature

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Drive Specifications

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:

Power modes

Heads

Spindle

Buffer

 

 

 

 

Active

Tracking

Rotating

Enabled

 

 

 

 

Idle

Tracking

Rotating

Enabled

 

 

 

 

Standby

Parked

Stopped

Enabled

 

 

 

 

Sleep

Parked

Stopped

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.

2.9Environmental specifications

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

2.9.1 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 2.

NAS HDD Product Manual, Rev. A

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Contents Seagate NAS HDD Revision Date Description of Change Document Revision HistoryContents NAS HDD Product Manual, Rev. a Figures NAS HDD Product Manual, Rev. a Seagate Technology Support Services NAS HDD Product Manual, Rev. a About the Sata interface IntroductionIntroduction Specification summary tables Drive SpecificationsDrive Specifications Formatted capacity LBA modeDefault logical geometry Recording and interface technology Physical characteristicsPower consumption Power specificationsSeek time Start/stop timesVoltage tolerance Conducted noiseEnvironmental specifications Power-management modesDrive case temperature Power modes Heads Spindle BufferTemperature gradient Ambient TemperatureHumidity AltitudeAcoustics Non-operating vibrationTest for Prominent Discrete Tones PDTs Electromagnetic immunityAgency certification Safety certification WarrantyReliability Mean Time Between Failure Electromagnetic compatibilityEnvironmental protection FCC verificationKorean RRL Australian C-Tick N176Corrosive environment China Restriction of Hazardous Substances RoHS DirectiveSata cables and connectors Handling and static-discharge precautionsConfiguring the drive Attaching Sata cabling Drive mountingSegment Pin Function Definition Sata InterfaceCommand name Command code in hex Supported ATA commandsSata Interface EFH Word Description Value Identify Device commandXx7FH Bit Word GPL feature set is supported Set Features commands Set Features commandCode in features register A.R.T. command 3 S.M.A.R.T. commandsIndex NAS HDD Product Manual, Rev. a NAS HDD Product Manual, Rev. a Page Page Americas Seagate Technology LLC