Seagate ST340215AS, ST3120215AS, ST3120815AS, ST3160815AS, ST3160215AS Seek time, Start/stop times

Page 35

2.6Seek time

Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured using drive diagnostics. The specifications in the table below are defined as follows:

•Track-to-track seek time is an average of all possible single-track seeks in both directions.

•Average seek time is a true statistical random average of at least 5,000 measurements of seeks between random tracks, less overhead.

 

750 - 300 GB models*, ST3250620AS,

ST3250410AS and ST3250310AS*

 

ST3250820AS and 200 GB model

and 160 - 40 GB models**

 

 

 

 

 

Typical seek times (msec)

Read

Write

Read

Write

 

 

 

 

 

Track-to-track

<0.8

<1.0

<0.8

<1.0

 

 

 

 

 

Average

<8.5

<10.0

<11.0

<12.0

 

 

 

 

 

Average latency:

4.16

 

 

 

 

 

 

 

 

*Measured in performance mode. **Measured in quiet mode.

Note. These drives are designed to consistently meet the seek times represented in this manual. Physical seeks, regardless of mode (such as track-to-track and average), are expected to meet the noted values. However, due to the manner in which these drives are formatted, benchmark tests that include command overhead or measure logical seeks may produce results that vary from these specifications.

2.7Start/stop times

 

750 - 320 GB

300 GB model

ST3250410AS, ST3250310AS

 

models

ST3250620AS, ST3250820AS

and 160 - 40 GB models

 

 

and 200 GB model

 

Power-on to Ready (sec)

15 (max)

11 (max)

7.9 (max)

 

 

 

 

Standby to Ready (sec)

15 (max)

11 (max)

7.9 (max)

 

 

 

 

Ready to spindle stop (sec)

10 (max)

 

 

 

 

 

 

Barracuda 7200.10 Serial ATA Product Manual, Rev. K

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Contents Barracuda 7200.10 Serial ATA Revision Date Sheets affected or comments Evision historyContents Barracuda 7200.10 Serial ATA Product Manual, Rev. K List of Figures Page Introduction About the Serial ATA interface Specification summary tables Drive specificationsDrive 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 Cylinders Read/write heads Sectors per track 16,383 Default logical geometryLBA mode Formatted capacityModel capacity 160 120 Recording and interface technologyModel capacity 750 500 400 320 300 Physical characteristics Start/stop times Seek timePower specifications Voltage tolerance Typical current profilesConducted noise Sleep mode Power-management modesActive mode Idle modeEnvironmental specifications Operating vibration Nonoperating shock 2 Disc models4 Disc models VibrationIdle Seek AcousticsFluid Dynamic Bearing FDB motor acoustics Test for Prominent Discrete Tones PDTsTest Description Performance level Reference standard Electromagnetic immunityRadio frequency environments Electromagnetic compatibility Safety certificationReliability Agency certificationFCC 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 Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Barracuda 7200.10 Serial ATA Product Manual, Rev. K Hot-Plug compatibility Serial ATA Sata interfacePin Function Definition Serial ATA device plug connector pin definitionsSerial ATA connector pin definitions SignalCommand name Command code in hex Supported ATA commandsSupported ATA commands F4H Word Description Value Identify Device commandXx07H 100 Bit Word Description if bit is set to Bit WordSet Features command values Set Features commandCode in features register A.R.T. command 3 S.M.A.R.T. commandsM.A.R.T. commands Technical Support Seagate Technology support servicesInternet Presales 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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