Seagate ST9500622NS, ST9500621NS, ST9500620NS, ST9250610NS manual About the Serial ATA interface

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Constellation.2 Serial ATA Self-Encrypting Drive models have the following additional features:

•Automatic data encryption/decryption

•Controlled access

•Random number generator

•Drive locking

•16 independent data bands

•Cryptographic erase of user data for a drive that will be repurposed or scrapped

•Authenticated firmware download

Note. There is no significant performance difference between Self-Encrypting Drive and standard (non- Self-Encrypting Drive) models.

2.1About the Serial ATA interface

The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary advantages include:

•Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jump- ers or other configuration options.

•Thinner and more flexible cabling for improved enclosure airflow and ease of installation.

•Scalability to higher performance levels.

In addition, Serial ATA makes the transition from parallel ATA easy by providing legacy software support. Serial ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disc drive in your current system and expect all of your existing applications to work as normal.

The Serial ATA interface connects each disc drive in a point-to-point configuration with the Serial ATA host adapter. There is no master/slave relationship with Serial ATA devices like there is with parallel ATA. If two drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they were both “masters” on two separate ports. This essentially means both drives behave as if they are Device 0 (master) devices.

Note. The host adapter may, optionally, emulate a master/slave environment to host software where two devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and Device 1 (slave) accessed at 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 Serial ATA environment.

The Serial ATA 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 Serial ATA host adapter contains a set of registers that shadow the contents of the traditional device regis- ters, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For addi- tional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized AT Attachment” specification. The specification can be downloaded from www.serialata.org.

Constellation.2 Serial ATA Product Manual, Rev. B

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Contents ST91000642NS ST9500622NS ST9250612NS Standard Models Self-Encrypting Drive ModelsSED 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 methodsTemperature a. Operating Environmental limitsRelative humidity Shock Effective altitude sea levelOperating shock Nonoperating shockVibration AcousticsOperating vibration Nonoperating vibrationReliability Electromagnetic immunityRadio frequency environments Test Description Performance level Reference standardAgency certification Product warranty Environmental protectionReference documents Shipping StorageProduct 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 CoolingAbout Fips PurposeLevel 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 command3 S.M.A.R.T. commands 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
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