Seagate ST3120215AS, ST3120815AS manual Power-management modes, Active mode, Idle mode, Sleep mode

Page 38

2.8.4Power-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

 

 

 

 

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 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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Barracuda 7200.10 Serial ATA Product Manual, Rev. K

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Contents Barracuda 7200.10 Serial ATA Evision history Revision Date Sheets affected or commentsContents Barracuda 7200.10 Serial ATA Product Manual, Rev. K List of Figures Page Introduction About the Serial ATA interface Drive specifications Specification summary tablesDrive specifications summary for 750 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for 500 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for 400 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for 320 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for 300 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for 250 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for the 200 Gbyte mode To access the following web Drive specifications summary for the 160 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for the 120 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for the 80 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Drive specifications summary for the 40 Gbyte models Barracuda 7200.10 Serial ATA Product Manual, Rev. K Formatted capacity Default logical geometryLBA mode Cylinders Read/write heads Sectors per track 16,383Model capacity 160 120 Recording and interface technologyModel capacity 750 500 400 320 300 Physical characteristics Seek time Start/stop timesPower specifications Voltage tolerance Typical current profilesConducted noise Idle mode Power-management modesActive mode Sleep modeEnvironmental specifications Vibration Nonoperating shock 2 Disc models4 Disc models Operating vibrationTest for Prominent Discrete Tones PDTs AcousticsFluid Dynamic Bearing FDB motor acoustics Idle SeekTest Description Performance level Reference standard Electromagnetic immunityRadio frequency environments Agency certification Safety certificationReliability Electromagnetic compatibilityFCC verification Korean RRLAustralian C-Tick N176 China Restriction of Hazardous Substances RoHS Directive Environmental protectionCorrosive environment Barracuda 7200.10 Serial ATA Product Manual, Rev. K Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsDrive mounting Barracuda 7200.10 Serial ATA Product Manual, Rev. K Serial ATA Sata interface Hot-Plug compatibilitySignal Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions Pin Function DefinitionCommand name Command code in hex Supported ATA commandsSupported ATA commands F4H Identify Device command Word Description ValueXx07H 100 Description if bit is set to Bit Word Bit WordSet Features command Set Features command valuesCode in features register A.R.T. command 3 S.M.A.R.T. commandsM.A.R.T. commands Presales Support Seagate Technology support servicesInternet Technical SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index ITE Page Barracuda 7200.10 Serial ATA Product Manual, Rev. K Page Disc Drive, Scotts Valley, California 95066-4544, USA
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ST3200820AS, ST3300820AS, ST3300620AS, ST3500641ASRK, ST3400820AS specifications

The Seagate ST3250310AS and ST3250410AS are notable hard drives that belong to the Barracuda series, known for their value and performance in the consumer and business sectors. These drives, featuring SATA interface technology, are especially popular among users seeking reliable storage solutions for desktops and personal computers.

The ST3250310AS model comes with a storage capacity of 250 GB, while the ST3250410AS offers an increased capacity of 400 GB. Both models are designed with a standard 3.5-inch form factor, making them compatible with most PC enclosures. The drives are equipped with a 7200 RPM rotational speed, which provides enhanced data access times and improved overall performance compared to slower drives.

One of the key features of these devices is their utilization of the SATA 3.0 interface, allowing for data transfer rates of up to 3 Gbps. This interface enhances the drive's performance when paired with compatible motherboards and systems. Additionally, the drives are equipped with a 16 MB buffer, which assists in improving the efficiency of the read and write operations, particularly during tasks that require frequent data access.

Seagate's Advanced Format technology is another characteristic of the ST3250310AS and ST3250410AS. This technology uses larger sector sizes, which allows for more efficient storage of data, resulting in increased capacity and potentially improved reliability. Furthermore, the drives come with a mean time between failures (MTBF) rating of about 1,000,000 hours, signifying their robust build quality designed for durability in varied computing environments.

The hard drives also leverage Seagate's SmartAlign technology, facilitating the drive's operation with Advanced Format hard drives seamlessly. The drives are compatible with various operating systems and are particularly suited for applications requiring high data availability and fast retrieval, such as gaming and media storage.

In summary, the Seagate ST3250310AS and ST3250410AS hard drives are solid options for users looking for dependable, high-performance storage solutions. Their blend of reliability, speed, and efficiency makes them suitable for a variety of applications, from personal computing to small business use. With their combination of advanced technologies and user-friendly characteristics, these drives stand out as capable choices for enhancing computer storage capabilities.
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