Seagate ST9500621NS manual Random number generator RNG, Drive locking, Data bands, Locking SP

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6.2.2Locking SP

The Locking SP controls read/write access to the media and the cryptographic erase feature. Access to the Locking SP is available using the BandMasterX or EraseMaster passwords. Since the drive owner can define up to 16 data bands on the drive, each data band has its own password called BandMasterX where X is the number of the data band (0 through 15).

6.2.3Default password

When the drive is shipped from the factory, all passwords are set to the value of MSID. This 32-byte random value is printed on the drive label and it can be read by the host electronically over the I/O. After receipt of the drive, it is the responsibility of the owner to use the default MSID password as the authority to change all other passwords to unique owner-specified values.

6.3Random number generator (RNG)

The drive has a 32-byte hardware RNG that it is uses to derive encryption keys or, if requested to do so, to pro- vide random numbers to the host for system use, including using these numbers as Authentication Keys (pass- words) for the drive’s Admin and Locking SPs.

6.4Drive locking

In addition to changing the passwords, as described in Section 6.2.3, the owner should also set the data access controls for the individual bands.

The variable "LockOnReset" should be set to "PowerCycle" to ensure that the data bands will be locked if power is lost. This scenario occurs if the drive is removed from its cabinet. The drive will not honor any data read or write requests until the bands have been unlocked. This prevents the user data from being accessed without the appropriate credentials when the drive has been removed from its cabinet and installed in another system.

When the drive is shipped from the factory, the firmware download port is locked and the drive will reject any attempt to download new firmware. The drive owner must use the SID credential to unlock the firmware down- load port before firmware updates will be accepted.

6.5Data bands

When shipped from the factory, the drive is configured with a single data band called Band 0 (also known as the Global Data Band) which comprises LBA 0 through LBA max. The host may allocate Band1 by specifying a start LBA and an LBA range. The real estate for this band is taken from the Global Band. An additional 14 Data Bands may be defined in a similar way (Band2 through Band15) but before these bands can be allocated LBA space, they must first be individually enabled using the EraseMaster password.

Data bands cannot overlap but they can be sequential with one band ending at LBA (x) and the next beginning at LBA (x+1).

Each data band has its own drive-generated encryption key and its own user-supplied password. The host may change the Encryption Key (see Section 6.6) or the password when required. The bands should be aligned to 4K LBA boundaries.

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
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