Seagate Understanding Power Management for Drives Model ST980817SM
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2.9.4Power-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

Std timing

 

 

 

 

 

Active (operating)

Tracking

Rotating

Enabled

 

 

 

 

 

 

Idle, performance

Tracking

Rotating

Enabled

 

 

 

 

 

 

Idle, active

Floating

Rotating

Disabled

100ms

 

 

 

 

 

Idle, low power

Parked

Rotating

Disabled

5.00 secs

 

 

 

 

 

Standby

Parked

Stopped

Disabled

Set by host

 

 

 

 

 

Sleep

Parked

Stopped

Disabled

Set by host

 

 

 

 

 

•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 disc 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 disc 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 disc access is necessary.

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EE25.2 Series Product Manual, Rev. E

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Contents EE25.2 Series Page Contents EE25.2 Series Product Manual, Rev. E List of Figures EE25.2 Series Product Manual, Rev. E Introduction Market Capacity Interface ModelPage Drive specifications Specification summarySpecifications for 80 Gbyte models Pata SataGs 0 to peak, 5-500 Hz X, Y, Z axis, 45 angles Specifications for 60 Gbyte models EE25.2 Series Product Manual, Rev. E Specifications for 40 Gbyte models EE25.2 Series Product Manual, Rev. E Specifications for 30 Gbyte models EE25.2 Series Product Manual, Rev. E Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383Technology Specification Physical organizationRecording technology Model Read/write heads Number of disksPhysical characteristics Read all temperatures Write all temperaturesSeek time Typical MaxPower specifications Start/stop timesPower dissipation 25C +5V AverageWatts Amps Typical current profile Conducted noiseVoltage tolerance Power-management modes Active modeIdle mode Sleep modeEnvironmental specifications AltitudeAcoustics Nonoperating shockVibration Operating vibrationAcoustic mode Idle Seeks Bels typ Bels maxElectromagnetic immunity Test Description Performance Reference Level StandardSafety certification ReliabilityAgency certification Electromagnetic compatibilityAustralian C-Tick N176 FCC verificationEnvironmental protection Corrosive environmentEuropean Union Restriction of Hazardous Substances RoHS EE25.2 Series Product Manual, Rev. E Mounting and configuring the drive Handling and static discharge precautionsDrive mounting Mounting dimensions-top, side and end view Breather filter hole precautions Breather filter hole locationHow to configure the drive How to connect Sata cablesHow to configure Parallel ATA Pata drives How to configure the drive as a master or slaveHow to use the cable-select option EE25.2 Series Product Manual, Rev. E Interface RefererenceSerial ATA connector pin definitions Serial ATA Sata interfaceSegment Pin Function Definition Power Pin Function DefinitionPata interface signals and connector pins Connector signalsConnector Cable Signal Name Contact Conductor Cable Connector Conductor Contact Signal NameSupported ATA commands Command name Command code in hex ATA-standard commandsCommand name Command code in hex ATA-standard power-management commandsATA-standard security commands Identify Device command Word Description ValueXxxxH Description if bit is set to Bit Set Features command 0CHS.M.A.R.T. commands A.R.T. commandsCode in features register A.R.T. command EE25.2 Series Product Manual, Rev. E Seagate Technology support services InternetPresales Support Technical SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Index NumericsPage Page EE25.2 Series Product Manual, Rev. E Page Seagate Technology LLC

ST940817SM, ST940818SM, ST960817SM, ST930817AM, ST960818AM specifications

Seagate has consistently been a leader in the field of data storage solutions, and their lineup of hard disk drives caters to a variety of needs. Among these, the ST980818SM, ST940817AM, ST940817SM, ST940818AM, and ST960817AM models stand out for their performance, reliability, and innovative technologies.

The ST980818SM is a 2.5-inch, 7200 RPM hard drive that offers a storage capacity of 80 GB, making it ideal for both personal and professional use. It features an SATA interface, providing high-speed data transfer rates that facilitate quick access to stored content. The drive also incorporates Seagate's advanced error correction technology, which enhances data integrity and longevity.

On the other hand, the ST940817AM and ST940817SM models are designed for mobile computing environments, providing a capacity of 40 GB each. These drives are notable for their low power consumption, which helps extend battery life in laptops and portable devices. They also utilize Seagate’s QuietStep positioning technology, reducing seek noise and promoting a quieter operation.

The ST940818AM offers a slightly larger capacity of 80 GB while retaining the same energy efficiency and sound-dampening features as its ST940817 counterparts. This drive is particularly suitable for consumers looking for a balance between performance and noise reduction, especially in environments where quiet is a priority.

Lastly, the ST960817AM distinguishes itself with a capacity of 60 GB and a 5400 RPM speed, making it a more economical option without sacrificing reliability. This model is suitable for users who need adequate storage for applications and media but are conscious of budget constraints.

All these drives incorporate Seagate's proprietary technology, ensuring robust performance across various applications. These include optimizations for thermal management, enhancing durability and reliability even under intensive usage.

With their various capacities and features, Seagate's ST980818SM, ST940817AM, ST940817SM, ST940818AM, and ST960817AM hard drives offer flexible solutions for users ranging from casual home use to demanding professional environments. Whether the requirement is for storage efficiency, noise reduction, or reliability, Seagate's drives deliver exceptional value and performance tailored to diverse data storage needs.
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