Seagate ST91608220AS, ST9808212AS, ST9608210AS Seek time, Start/stop times, Typical seek times

Page 17

2.7Seek 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.

Table 2:

Typical seek times

 

 

 

 

Typical seek times (msec)

Read

Write

 

 

 

Track-to-track

1.0

1.5

 

 

 

 

Average

 

12.5

14.0

 

 

 

 

Full-stroke

 

22.0

24.0

 

 

 

Average latency

5.6

5.6

 

 

 

 

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.

2.8Start/stop times

Time to ready

Typical

Max @ 25°C

 

 

 

Power-on to Ready (sec)

3.0

8.0

 

 

 

Standby to Ready (sec)

3.0

8.0

 

 

 

Momentus 5400.3 PSD SATA Product Manual, Rev. A

9

Page 16 Page 18
Image 17
Page 16 Page 18
Contents 100454328 Rev. a Momentus 5400.3 PSD SataPage Revision Date Revision status summary sheetRev. a 04/13/07 Initial release Momentus 5400.3 PSD Sata Product Manual, Rev. a Contents Momentus 5400.3 PSD Sata Product Manual, Rev. a List of Figures Page Introduction Improve performance About the Serial ATA interfaceNon-volatile cache NVC Reduced acoustics Provide power savings and battery lifeImprove reliability Momentus 5400.3 PSD Sata Product Manual, Rev. a Drive specifications summary Drive specificationsSpecification summary table Tem will display the warranty information for your drive LBA mode Default logical geometryFormatted capacity Cylinders Read/write heads Sectors per track 16,383Recording and interface technology Physical characteristicsPhysical organization Start/stop times Seek timeTypical seek times Typical seek times msec Read WritePower specifications Deferred spinup Typical current profileConducted noise Voltage tolerancePower management modes Power-management modesActive mode Idle modeEnvironmental specifications Operating shock ShockNonoperating shock VibrationElectromagnetic immunity AcousticsDrive level acoustics Radio frequency environmentsMeasurement type Specification Safety certificationReliability Agency certificationFCC verification Korean RRLAustralian C-Tick N176 European Union Restriction of Hazardous Substances RoHS Environmental protectionCorrosive environment Handling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewMomentus 5400.3 PSD Sata Product Manual, Rev. a Signal Serial ATA connector pin definitionsSerial ATA Sata interface Segment Pin Function DefinitionP10 Ground 2nd mate P11 Reserved Pin Function DefinitionCommand name Command code in hex ATA-standard commands Supported ATA commandsATA-standard power-management commands Command name Command code in hexNon-volitile cache commands Word Description Value Identify Device commandXx07H 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. commandsA.R.T. commands Internet Seagate Technology support servicesPresales Support Technical SupportData Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index ITE Sata Momentus 5400.3 PSD Sata Product Manual, Rev. a Page Seagate Technology LLC

ST91608220AS, ST9608210AS, ST91208220AS, ST9808212AS, ST91008220AS specifications

Seagate is a renowned name in the data storage industry, offering high-quality hard disk drives that cater to various needs. Among its product lineup, the Seagate ST91008220AS, ST9808212AS, ST91208220AS, ST9608210AS, and ST91608220AS are significant models that showcase the company’s commitment to innovation and performance.

The ST91008220AS is a 1TB drive with a 7200 RPM rotational speed, designed primarily for desktop computers. Its SATA 3 Gb/s interface facilitates faster data transfer rates, making it ideal for users who require additional storage without sacrificing performance. The drive’s 32 MB cache enhances read and write speeds, ensuring swift access to files and applications.

Next in line, the ST9808212AS is also a 7200 RPM drive, but it offers a capacity of 80GB. This model is tailored more for entry-level systems, where space is limited but reliability is crucial. With its efficient data management features, it provides a robust solution for everyday computing tasks.

The ST91208220AS offers a balanced combination of performance and capacity, packing 120GB of storage into a similar 7200 RPM design. This model is well-suited for general use in both desktop and gaming environments, providing ample space for operating systems, applications, and games without compromising on speed.

For users seeking a high-performance option, the ST9608210AS stands out with its 600GB storage capacity. With a rotation speed of 10000 RPM, this drive is tailored for demanding applications such as video editing and gaming, where fast access to data is essential. Its SAS interface allows for even more efficient data management in enterprise environments.

Lastly, the ST91608220AS is another 160GB option, also designed for environments that demand high performance. This drive's enhanced reliability features, such as error correction and thermal management, allow it to excel in heavy-use conditions.

All these models include key technologies like Seagate’s SmartAlign, which helps users transition to advanced formatting with ease, and Adaptive Differential Encoding, enhancing data integrity. Additionally, these drives support a variety of platforms and systems, making them versatile options for consumers and businesses alike.

In summary, the Seagate ST91008220AS, ST9808212AS, ST91208220AS, ST9608210AS, and ST91608220AS are primed for diverse storage needs, delivering excellent performance and reliability across different applications and environments. Their combination of rotational speeds, cache sizes, and advanced technologies ensures that Seagate remains a leader in the hard drive market.
Top Page Image Contents