Seagate ST9250612NS, ST9500622NS manual Formatted capacity, Default logical geometry, LBA mode

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3.2Formatted capacity

	Formatted	Guaranteed
Model	capacity*	sectors	Bytes per sector

ST91000640NS
ST91000641NS	1000 GB	1,953,525,168
ST91000642NS

ST9500620NS
ST9500621NS	500 GB	976,773,168	512
ST9500622NS

ST9250610NS
ST9250611NS	250 GB	488,397,168
ST9250612NS

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

3.2.1LBA 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 7.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48- bit addressing support of drives with capacities over 137 Gbytes.

3.3Default 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.

3.4Recording and interface technology

	All models

Interface	Serial ATA (SATA)

Recording method	Perpendicular

Recording density, KBPI (Kb/in max)	1544

Track density, KTPI (Ktracks/in avg)	270

Areal density (Gb/in2 avg)	417
Spindle speed (RPM) (± 0.2%)	7200

Internal data transfer rate (Mb/s max)	1304

Sustained data transfer rate (MB/s max)	115

I/O data-transfer rate (MB/s max)	600

Constellation.2 Serial ATA Product Manual, Rev. B

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Contents Standard Models Self-Encrypting Drive Models ST91000642NS ST9500622NS ST9250612NSSED Fips 140-2 Models Revision Date Sheets affected or comments Revision historyContents Serial ATA Sata interface List of Figures Page Seagate Online Support and Services Seagate Technology support servicesIntroduction About the Serial ATA interface Specification summary tables Drive specificationsDrive specifications summary for 1TB, 500 and 250 GB models Constellation.2 Serial ATA Product Manual, Rev. B LBA mode Default logical geometryFormatted capacity Recording and interface technologySeek time Physical characteristicsStart/stop times Typical seek times ms Read WritePower consumption Power specificationsSpinup power Standby modePower 1000GB drive Standard & SED model DC power requirementssST91000640NS Parameter 0GB Voltage +12 Regulation +10/-7.5% WattsST9500620NS Parameter 0GB Voltage +12 500GB drive Standard & SED model DC power requirementsST9250610NS Parameter 0GB Voltage +12 250GB drive Standard & SED model DC power requirementsTypical current profiles Voltage tolerance Conducted noiseActive mode Power-management modesIdle mode Sleep modePower Condition Name Power Condition ID Description PowerChoice is invoked using one of two methodsEnvironmental limits Temperature a. OperatingRelative humidity Shock Effective altitude sea levelOperating shock Nonoperating shockVibration AcousticsOperating vibration Nonoperating vibrationReliability Electromagnetic immunityRadio frequency environments Test Description Performance level Reference standardAgency certification Environmental protection Product warrantyReference documents Storage ShippingProduct repair and return information China Restriction of Hazardous Substances RoHS Directive Corrosive environmentHandling and static-discharge precautions Configuring and mounting the driveSerial ATA cables and connectors Configuring the driveDrive mounting Mounting dimensions-top, side and end viewAir flow CoolingPurpose About FipsLevel 2 security Admin SP Controlled accessAbout self-encrypting drives Data encryptionRandom number generator RNG Default passwordDrive locking Data bandsPower requirements Authenticated firmware downloadSupported commands Cryptographic eraseHot-Plug compatibility Serial ATA Sata interfaceSerial ATA connector pin definitions Serial ATA device plug connector pin definitionsSignal Pin Function DefinitionSupported ATA commands Supported ATA commandsCommand name Command code in hex F4H Word Description Value Identify Device commandXx07H Bit Word Description if bit is set to Bit WordWord Set Features command values Set Features commandA.R.T. commands 3 S.M.A.R.T. commandsCode in features register A.R.T. command Index ITE Page Constellation.2 Serial ATA Product Manual, Rev. B Page Disc Drive, Scotts Valley, California 95066-4544, USA