Seagate ST9146653SS Cryptographic erase, Authenticated firmware download, Power requirements

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9.6Cryptographic erase

A significant feature of SEDs is the ability to perform a cryptographic erase. This involves the host telling the drive to change the data encryption key for a particular band. Once changed, the data is no longer recoverable since it was written with one key and will be read using a different key. Since the drive overwrites the old key with the new one, and keeps no history of key changes, the user data can never be recovered. This is tanta- mount to an instantaneous data erase and is very useful if the drive is to be scrapped or redispositioned.

9.7Authenticated firmware download

In addition to providing a locking mechanism to prevent unwanted firmware download attempts, the drive also only accepts download files which have been cryptographically signed by the appropriate Seagate Design Center.

Three conditions must be met before the drive will allow the download operation:

1.The download must be an SED file. A standard (base) drive (non-SED) file will be rejected.

2.The download file must be signed and authenticated.

3.As with a non-SED drive, the download file must pass the acceptance criteria for the drive. For example it must be applicable to the correct drive model, and have compatible revision and customer status.

9.8Power requirements

The standard drive models and the SED drive models have identical hardware, however the security and encryption portion of the drive controller ASIC is enabled and functional in the SED models. This represents a small additional drain on the 5V supply of about 30mA and a commensurate increase of about 150mW in power consumption. There is no additional drain on the 12V supply. See the tables in Section 7.3 for power requirements on the standard (non-SED) drive models.

9.9Supported commands

The SED models support the following two commands in addition to the commands supported by the standard (non-SED) models as listed in Table 7:

•Security Protocol Out (B5h)

•Security Protocol In (A2h)

9.10RevertSP

The SED models will support RevertSP feature where it erases all data in all bands on the device and returns the contents of all SPs (Security Providers) on the device to their Original Factory State.

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Contents SED FIPS140-2 Models ST9300653SSST9300553SS ST9146853SSST9146753SSST9300453SS ST9146653SS Standard Models Self-Encrypting Drive ModelsPage Contents Interface requirements Defect and error managementInstallation About Fips About self-encrypting drivesPage Savvio 15K.3 SAS Product Manual, Rev. a List of Figures Page Seagate Online Support and Services Seagate Technology support servicesScope Electromagnetic susceptibility Applicable standards and reference documentationStandards Electromagnetic compatibilityKorean KCC Electromagnetic complianceElectromagnetic compliance for the European Union Australian C-TickEuropean Union Restriction of Hazardous Substances RoHS Reference documents Scsi Commands Reference Manual SAS Interface ManualGeneral description Media description Standard featuresFormatted capacities PerformanceReliability Programmable drive capacity Factory installed optionsAccess time Performance characteristicsInternal drive characteristics Seek performance characteristicsStart/stop time Format command execution timeGeneral performance characteristics Cache operation Prefetch/multi-segmented cache controlPrefetch operation Caching write dataUnrecoverable Errors Reliability specificationsError rates Recoverable ErrorsPreventive maintenance Reliability and serviceSeek errors Interface errorsPerformance impact Maximum processing delay4 S.M.A.R.T Controlling S.M.A.R.TThermal monitor Temperature Log Page 0Dh Parameter Code DescriptionPredictive failures Implementation State of the drive prior to testingDrive Self Test DST DST failure definitionLog page entries Short and extended testsShort test Function Code 001b Extended test Function Code 010bStorage Product warrantyShipping Product repair and return informationPowerChoice modes Physical/electrical specificationsPowerChoiceTM power management DC power requirements AC power requirementsRegulation 300GB models DC power requirements146GB models DC power requirements Conducted noise immunity General DC power requirement notesPower sequencing Current profile for 300GB models Current profilesCurrent profile for 146GB models 300GB models in 3Gb operation Power dissipation300GB models in 6Gb operation 146GB models in 3Gb operation 146GB models in 6Gb operationRelative humidity Temperature a. OperatingEnvironmental limits Shock Effective altitude sea level a. OperatingShock and vibration Recommended mounting Vibration a. Operating-normalAcoustics Air cleanlinessCorrosive environment Dimensions Mechanical specificationsLevel 2 security About FipsPurpose Data encryption Controlled accessAdmin SP About self-encrypting drivesData bands Default passwordRandom number generator RNG Drive lockingCryptographic erase Authenticated firmware downloadPower requirements Supported commandsDrive error recovery procedures Defect and error managementDrive internal defects/errors Background Media Scan SAS system errorsIdle Read After Write Media Pre-ScanDeferred Auto-Reallocation Identifying a Protection Information drive Setting and determining the current Type LevelProtection Information PI Levels of PIDrive orientation InstallationAir flow CoolingGrounding Drive mountingInterface requirements SAS featuresDual port support Scsi commands supportedSupported commands Supported commands Supported commands Supported commands Savvio inquiry data Mode Sense dataInquiry data Page Mode Data Header Mode Data Header Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features SAS physical interface Datum B Section C C Section a a Pin descriptions Physical characteristicsConnector requirements Electrical descriptionReady LED Out Signal characteristicsPower SAS transmitters and receiversGeneral interface characteristics SAS-2 Specification complianceLED drive signal Differential signalsNumerics IndexPage Msid Mtbf See also cooling Page Savvio 15K.3 SAS Product Manual, Rev. a
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