Seagate ST2000VN000, ST3000VN000 manual Introduction

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Introduction

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The SATA host adapter and drive share the function of emulating parallel ATA device behavior to provide backward compatibility with existing host systems and software. The Command and Control Block registers, PIO and DMA data transfers, resets, and interrupts are all emulated.

The SATA host adapter contains a set of registers that shadow the contents of the traditional device registers, referred to as the Shadow Register Block. All SATA devices behave like Device 0 devices. For additional information about how SATA emulates parallel ATA, refer to the “Serial ATA International Organization: Serial ATA Revision 3.0”. The specification can be downloaded from www.sata-io.org.

The host adapter may, optionally, emulate a master/slave environment to host software where two devices on

separate SATA ports are represented to host software as a Device 0 (master) and Device 1 (slave) accessed at Note the same set of host bus addresses. A host adapter that emulates a master/slave environment manages two

sets of shadow registers. This is not a typical SATA environment.

10	NAS HDD Product Manual, Rev. A

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Contents Seagate NAS HDD Document Revision History Revision Date Description of ChangeContents NAS HDD Product Manual, Rev. a Figures NAS HDD Product Manual, Rev. a Seagate Technology Support Services NAS HDD Product Manual, Rev. a Introduction About the Sata interfaceIntroduction Drive Specifications Specification summary tablesDrive Specifications Default logical geometry LBA modeFormatted capacity Physical characteristics Recording and interface technologySeek time Power specificationsPower consumption Start/stop timesConducted noise Voltage toleranceDrive case temperature Power-management modesEnvironmental specifications Power modes Heads Spindle BufferHumidity Ambient TemperatureTemperature gradient AltitudeTest for Prominent Discrete Tones PDTs Non-operating vibrationAcoustics Electromagnetic immunityReliability Mean Time Between Failure WarrantyAgency certification Safety certification Electromagnetic compatibilityKorean RRL FCC verificationEnvironmental protection Australian C-Tick N176China Restriction of Hazardous Substances RoHS Directive Corrosive environmentConfiguring the drive Handling and static-discharge precautionsSata cables and connectors Drive mounting Attaching Sata cablingSata Interface Segment Pin Function DefinitionSupported ATA commands Command name Command code in hexSata Interface EFH Identify Device command Word Description ValueXx7FH Bit Word GPL feature set is supported Set Features command Set Features commands3 S.M.A.R.T. commands Code in features register A.R.T. commandIndex NAS HDD Product Manual, Rev. a NAS HDD Product Manual, Rev. a Page Page Seagate Technology LLC Americas