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Seagate ST91000640SS, ST9500621SS General DC power requirement notes, Conducted noise immunity

Models: ST91000640SS ST91000641SS 100620418 ST91000642SS ST9500622SS ST9500621SS ST9500620SS

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General DC power requirement notes.

1.Minimum current loading for each supply voltage is not less than 1.7% of the maximum operating current shown.

2.The +5V and +12V supplies should employ separate ground returns.

3.Where power is provided to multiple drives from a common supply, careful consideration for individual drive power requirements should be noted. Where multiple units are powered on simultaneously, the peak starting current must be available to each device.

4.Parameters, other than spindle start, are measured after a 10-minute warm up.

5.No terminator power.

7.3.1Conducted noise immunity

Noise is specified as a periodic and random distribution of frequencies covering a defined frequency range. Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power connector.

+5v	=	250mVpp from 100Hz to 20MHz.
+12v	=	450mVpp from 100Hz to 100KHz.
		250mVpp from 100KHz to 20MHz.
		150mVpp from 20MHz to 100MHz.

7.3.2Power sequencing

The drive does not require power sequencing. The drive protects against inadvertent writing during power-up and down.

26	Constellation.2 SAS Product Manual, Rev. H

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Seagate ST91000640SS, ST9500621SS, 100620418 General DC power requirement notes, Conducted noise immunity, Power sequencing

Contents

Standard Models Self-Encrypting Drive Models ST91000640SSST91000641SS ST9500620SSST9500621SSST91000642SS ST9500622SS SED Fips 140-2 Models Revision history Contents About Fips About self-encrypting drives Defect and error managementInstallation Interface requirementsPage Constellation.2 SAS Product Manual, Rev. H List of Figures Constellation.2 SAS Product Manual, Rev. H Seagate Technology support services Seagate Online Support and Services Scope Electromagnetic compatibility Applicable standards and reference documentationStandards Electromagnetic susceptibility Australian C-Tick Electromagnetic complianceElectromagnetic compliance for the European Union Korean KCC European Union Restriction of Hazardous Substances RoHS China Restriction of Hazardous Substances RoHS Directive Reference documents Self-Encrypting Drives Reference Manual General description Standard features Media description Formatted capacities PerformanceReliability Programmable drive capacity Factory-installed options Seek performance characteristics Performance characteristicsInternal drive characteristics Access time General performance characteristics Start/stop time Prefetch/multi-segmented cache control Cache operation Caching write data Prefetch operation Recoverable Errors Reliability specificationsError rates Unrecoverable Errors Interface errors Reliability and serviceSeek errors Preventive maintenance Performance impact 4 S.M.A.R.TControlling S.M.A.R.T Reporting control Predictive failures Temperature Log Page 0Dh Parameter Code DescriptionThermal monitor DST failure definition State of the drive prior to testingDrive Self Test DST Implementation Extended test Function Code 010b Short and extended testsShort test Function Code 001b Log page entries Storage Product warrantyShipping Product repair and return information PowerChoiceTM power management Physical/electrical specificationsPowerChoice modes AC power requirements DC power requirements 1000GB drive Standard & SED model DC power requirements 500GB drive Standard & SED model DC power requirements Power sequencing General DC power requirement notesConducted noise immunity Current profiles TB model current profiles GB model current profiles Power dissipation 1TB model drive in 3Gb operation 1TB model drive in 6Gb operation 500GB model drive in 3Gb operation 500GB model drive in 6Gb operation Environmental limits Temperature a. OperatingRelative humidity Shock and vibration Effective altitude sea level a. OperatingShock Recommended mounting Acoustics Air cleanlinessVibration a. Operating-normal Corrosive environment See Section Constellation.2 SAS Product Manual, Rev. H Mechanical specifications Mounting configuration dimensions Validation Program About FipsPurpose Seagate Enterprise SED Example of Fips tamper evidence labels About self-encrypting drives Controlled accessAdmin SP Data encryption Drive locking Authenticated firmware downloadRandom number generator RNG Data bands Power requirements Supported commands Drive internal defects/errors Defect and error managementDrive error recovery procedures SAS system errors Media Pre-Scan Background Media ScanDeferred Auto-Reallocation Protection Information PI Setting and determining the current Type LevelIdle Read After Write Levels of PI Identifying a Protection Information drive Installation Drive orientation Cooling Air flow Drive mounting Grounding SAS features Interface requirements Dual port support Scsi commands supported Supported commands Supported commands Supported commands Supported commands Inquiry data Mode Sense dataConstellation.2 inquiry data Page Block Descriptor 00 00 00 00 3a 38 60 30 00 00 00 00 00 00 02 Miscellaneous features Miscellaneous operating features and conditionsMiscellaneous status SAS physical interface Datum B Section C C Section a a Electrical description Physical characteristicsConnector requirements Pin descriptions SAS transmitters and receivers Signal characteristicsPower Ready LED Out Differential signals SAS-2 Specification ComplianceLED drive signal General interface characteristics Index Numerics KCC Msid Mtbf See also cooling Page Constellation.2 SAS Product Manual, Rev. H Page Seagate Technology LLC Americas