Seagate ST3250310CS manual Formatted capacity, Default logical geometry, LBA mode

Page 12

2.2Formatted capacity

	Formatted	Guaranteed
Model	capacity*	sectors	Bytes per sector

ST3250310CS	250 Gbytes	488,397,168	512

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.

2.2.1LBA mode

When addressing the drive in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,where n is the number of guaranteed sectors as defined above.

See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48- bit addressing support of drives with capacities over 137 Gbytes.

2.3Default logical geometry

Cylinders	Read/write heads	Sectors per track

16,383	16	63

LBA mode

When addressing the drive in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,where n is the number of guaranteed sectors as defined above.

2.4Recording and interface technology

Interface	Serial ATA (SATA)

Recording method	Perpendicular

Recording density (kbits/inch max)	1,049

Track density (ktracks/inch avg)	155

Areal density (Gbits/inch2 avg)	163
Internal data transfer rate (Mbits/sec max)	1,212

Sustained data transfer rate (Mbytes/sec max)	106

I/O data-transfer rate (Mbytes/sec max)	300

6	DB35.4 Series SATA Product Manual, Rev. B

Image 12

Contents DB35.4 Series Sata ST3250310CSRevision history Revision DateContents DB35.4 Series Sata Product Manual, Rev. B List of Figures Page Introduction About the Serial ATA interface Drive specifications Specification summary tablesDrive specifications summary for 250 Gbyte model Drive specification ST3250310CSDB35.4 Series Sata Product Manual, Rev. B Default logical geometry LBA modeFormatted capacity Recording and interface technologyPhysical characteristics Seek timeStart/stop times Typical seek times msec Read WritePower specifications Typical current profiles Conducted noiseVoltage tolerance Power-management modes Active modeIdle mode Sleep modeEnvironmental specifications Vibration Operating vibrationNonoperating vibration Drive A-weighted Sound Power Levels SWL, BA Acoustics emissionsElectromagnetic immunity Test for Prominent Discrete Tones PDTsSafety certification ReliabilityAgency certification Annualized Failure Rate AFRKorean RRL Australian C-Tick N176FCC verification Environmental protection Corrosive environmentChina Restriction of Hazardous Substances RoHS Directive Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions Drive mountingDB35.4 Series Sata Product Manual, Rev. B Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function DefinitionSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Identify Device command Word Description ValueXx07H 129 Seagate-reserved Description if bit is set to Bit Word Bit WordSet Features command Set Features command values3 S.M.A.R.T. commands A.R.T. commandsCode in features register A.R.T. command Seagate Technology support services InternetPresales Support Technical SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Index ITE Page DB35.4 Series Sata Product Manual, Rev. B Page Seagate Technology LLC