Seagate ST3250820NS, ST3250620NS manual Formatted capacity, Default logical geometry, LBA mode

Page 20

2.2Formatted capacity

	Formatted	Guaranteed
Model	capacity*	sectors	Bytes per sector

ST3750640NS	750 Gbytes	1,465,149,168	512

ST3750840NS	750 Gbytes	1,465,149,168	512

ST3500630NS	500 Gbytes	976,773,168	512

ST3500830NS	500 Gbytes	976,773,168	512

ST3400620NS	400 Gbytes	781,422,768	512

ST3400820NS	400 Gbytes	781,422,768	512

ST3320620NS	320 Gbytes	625,142,448	512

ST3320820NS	320 Gbytes	625,142,448	512

ST3250620NS	250 Gbytes	488,397,168	512

ST3250820NS	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 these drives 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 these drives 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.

14	Barracuda ES Serial ATA Product Manual, Rev. D

Image 20

Contents Barracuda ES Serial ATA Revision history Revision DateContents Barracuda ES Serial ATA Product Manual, Rev. D List of Figures Page Introduction About the Serial ATA interface Drive specifications Specification summary tablesDrive specifications summary for 750 Gbyte models Drive specification ST3750640NS ST3750840NSBarracuda ES Serial ATA Product Manual, Rev. D Drive specifications summary for 500 Gbyte models Drive specification ST3500630NS ST3500830NSFollowing web Drive specifications summary for 400 Gbyte models Drive specification ST3400620NS ST3400820NSBarracuda ES Serial ATA Product Manual, Rev. D Drive specifications summary for 320 Gbyte models Drive specification ST3320620NS ST3320820NSBarracuda ES Serial ATA Product Manual, Rev. D Drive specifications summary for 250 Gbyte models Drive specification ST3250620NS ST3250820NSBarracuda ES Serial ATA Product Manual, Rev. D Default logical geometry LBA modeFormatted capacity Cylinders Read/write heads Sectors per track 16,383750GB 500GB 400GB 320GB 250GB Physical characteristicsRecording and interface technology Typical seek times msec Read Write Seek timeStart/stop times Power specifications Voltage tolerance Typical current profilesConducted noise Power-management modes Active modeIdle mode Sleep modeEnvironmental specifications Acoustics VibrationOperating vibration Nonoperating vibrationTest Description Performance level Reference standard Electromagnetic immunityRadio frequency environments Safety certification ReliabilityAgency certification Electromagnetic compatibilityFCC verification Korean RRLAustralian C-Tick N176 China Restriction of Hazardous Substances RoHS Directive Environmental protectionCorrosive environment Barracuda ES Serial ATA Product Manual, Rev. D Configuring and mounting the drive Handling and static-discharge precautionsConfiguring the drive Serial ATA cables and connectorsMounting dimensions-top, side and end view Drive mountingBarracuda ES Serial ATA Product Manual, Rev. D Serial ATA Sata interface Hot-Plug compatibilitySerial ATA device plug connector pin definitions Serial ATA connector pin definitionsSignal Pin Function DefinitionCommand name Command code in hex Supported ATA commandsSupported ATA commands F4H Identify Device command Word Description ValueXx07H 128 Security status 0001H 129 Seagate-reserved 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 Technical Support InternetPresales Support Data Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index ITE Page Barracuda ES Serial ATA Product Manual, Rev. D Page Disc Drive, Scotts Valley, California 95066-4544, USA

Related manuals

Manual 2 pages 35.8 Kb