Seagate ST9300653SS manual Physical/electrical specifications, PowerChoiceTM power management

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7.0Physical/electrical specifications

This section provides information relating to the physical and electrical characteristics of the drive.

7.1PowerChoiceTM power management

Drives using the CSS architecture have limited power management capability.

The table below lists the supported PowerChoice modes. The further you go down in the table, the more power savings you get.

PowerChoice modes

Mode	Description

Idle_A	Reduced electronics

Idle_B	N/A

Idle_C	N/A

Standby_Y	N/A

Standby_Z	Motor stopped (disks not spinning)

PowerChoice can be invoked using only the Start Stop Unit command for drives using the CSS architecture:

•START STOP UNIT command method—Use the START STOP UNIT command (OPERATION CODE 1Bh). This allows the host to directly transition the drive to any supported PowerChoice mode.

The REQUEST SENSE command reports the current PowerChoice state if active and also the method by which the drive entered the PowerChoice state.

22	Savvio 15K.3 SAS Product Manual, Rev. A

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Contents Standard Models Self-Encrypting Drive Models ST9300653SSST9300553SS ST9146853SSST9146753SSST9300453SS ST9146653SS SED FIPS140-2 ModelsPage Contents About Fips About self-encrypting drives Defect and error managementInstallation Interface requirementsPage Savvio 15K.3 SAS Product Manual, Rev. a List of Figures Page Seagate Technology support services Seagate Online Support and ServicesScope Electromagnetic compatibility Applicable standards and reference documentationStandards Electromagnetic susceptibilityAustralian C-Tick Electromagnetic complianceElectromagnetic compliance for the European Union Korean KCCEuropean Union Restriction of Hazardous Substances RoHS Scsi Commands Reference Manual SAS Interface Manual Reference documentsGeneral description Standard features Media descriptionPerformance ReliabilityFormatted capacities Factory installed options Programmable drive capacitySeek performance characteristics Performance characteristicsInternal drive characteristics Access timeFormat command execution time General performance characteristicsStart/stop time Prefetch/multi-segmented cache control Cache operationCaching write data Prefetch operationRecoverable Errors Reliability specificationsError rates Unrecoverable ErrorsInterface errors Reliability and serviceSeek errors Preventive maintenanceControlling S.M.A.R.T Maximum processing delay4 S.M.A.R.T Performance impactTemperature Log Page 0Dh Parameter Code Description Predictive failuresThermal monitor DST failure definition State of the drive prior to testingDrive Self Test DST ImplementationExtended test Function Code 010b Short and extended testsShort test Function Code 001b Log page entriesProduct repair and return information Product warrantyShipping StoragePhysical/electrical specifications PowerChoiceTM power managementPowerChoice modes AC power requirements DC power requirements300GB models DC power requirements Regulation146GB models DC power requirements General DC power requirement notes Power sequencingConducted noise immunity Current profiles Current profile for 300GB modelsCurrent profile for 146GB models Power dissipation 300GB models in 6Gb operation300GB models in 3Gb operation 146GB models in 6Gb operation 146GB models in 3Gb operationTemperature a. Operating Environmental limitsRelative humidity Effective altitude sea level a. Operating Shock and vibrationShock Vibration a. Operating-normal Recommended mountingAir cleanliness Corrosive environmentAcoustics Mechanical specifications DimensionsAbout Fips PurposeLevel 2 security About self-encrypting drives Controlled accessAdmin SP Data encryptionDrive locking Default passwordRandom number generator RNG Data bandsSupported commands Authenticated firmware downloadPower requirements Cryptographic eraseDefect and error management Drive internal defects/errorsDrive error recovery procedures SAS system errors Background Media ScanMedia Pre-Scan Deferred Auto-ReallocationIdle Read After Write Levels of PI Setting and determining the current Type LevelProtection Information PI Identifying a Protection Information driveInstallation Drive orientationCooling Air flowDrive mounting GroundingSAS features Interface requirementsScsi commands supported Supported commandsDual port support Supported commands Supported commands Supported commands Mode Sense data Inquiry dataSavvio inquiry data Page Mode Data Header Mode Data Header Miscellaneous operating features and conditions Miscellaneous featuresMiscellaneous status SAS physical interface Datum B Section C C Section a a Electrical description Physical characteristicsConnector requirements Pin descriptionsSAS transmitters and receivers Signal characteristicsPower Ready LED OutDifferential signals SAS-2 Specification complianceLED drive signal General interface characteristicsIndex NumericsPage Msid Mtbf See also cooling Page Savvio 15K.3 SAS Product Manual, Rev. a