Seagate ST973401SS, ST936701SS manual Format command execution time for 512-byte sectors minutes

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4.2.2Format command execution time for 512-byte sectors (minutes)

		ST973401SS	ST936701SS
Maximum (with verify)		52	26
Maximum (without verify)		26	13
4.2.3	General performance characteristics
Minimum sector interleave				1 to 1
Data buffer to/from disc media (one 512-byte logical block)*
Minimum				63 MBytes/sec
Maximum				94 MBytes/sec
SAS Interface maximum instantaneous transfer rate				300 Mbytes/sec* per
				port (dual port = 600
				Mbytes/sec*)
Logical block sizes
Default is 512-byte data blocks
Variable 512 to 528 bytes per sector in evenly divisible by 4 number
of bytes per sector (512, 516, 520, 524, or 528). If n (number of bytes
per sector is not divisible by 4, the next lowest number that is devisi-
ble by 4 will be used.
Read/write consecutive sectors on a track				Yes
Flaw reallocation performance impact (for flaws reallocated at format time				Negligible
using the spare sectors per sparing zone reallocation scheme.)
Average rotational latency				3.0 msec

*Assumes no errors and no relocated logical blocks. Rate measured from the start of the first logi- cal block transfer to or from the host.

12	Savvio SAS Product Manual, Rev. D

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Contents Savvio SAS ST973401SS ST936701SSPage Contents Seagate Technology support services Defect and error managementInstallation Interface requirementsList of Figures Page Scope Savvio family disc driveSavvio SAS Product Manual, Rev. D Electromagnetic compatibility Applicable standards and reference documentationStandards Electromagnetic susceptibilityAustralian C-Tick Electromagnetic complianceElectromagnetic compliance for the European Union Korean MICReference documents SAS Interface ManualSavvio SAS Product Manual, Rev. D General description Standard features Media descriptionPerformance Formatted capacities Factory-installed accessories Reliability Programmable drive capacityFactory-installed options User-installed accessoriesSeek performance characteristics Performance characteristicsInternal drive characteristics Access timeFormat command execution time for 512-byte sectors minutes General performance characteristicsStart/stop time Prefetch/multi-segmented cache controlCache operation Caching write data Prefetch operation Savvio SAS Product Manual, Rev. D Recoverable Errors Reliability specificationsError rates Unrecoverable ErrorsInterface errors Reliability and serviceSeek errors Preventive maintenanceControlling S.M.A.R.T Hot plugging the drive4 S.M.A.R.T Performance impactPredictive failures Reporting controlDetermining rate Thermal monitorDST failure definition Temperature Log Page 0Dh Parameter Code DescriptionDrive Self Test DST ImplementationShort and extended tests State of the drive prior to testingInvoking DST Short test Function Code 001bAbort Product warrantyLog page entries ShippingProduct repair and return information DC power requirements Physical/electrical specificationsAC power requirements ST973401SS DC power requirementsST936701SS DC power requirements General DC power requirement notesST936701SS Gbit mode Amps Current profiles Power sequencingConducted noise immunity +5V +12VTypical ST973401SS drive +12V current profile Typical ST936701SS drive +12V current profile Power dissipation ST973401SS in 3 Gbit operationST973401SS in 1.5 Gbit operation ST936701SS in 3 Gbit operation ST936701SS in 1.5 Gbit operationTemperature Environmental limitsRelative humidity Effective altitude sea level Shock and vibrationShock Package size Packaged/product weight Drop height Recommended mountingAir cleanliness VibrationCorrosive environment Acoustics Mechanical specifications Mounting configuration dimensionsSavvio SAS Product Manual, Rev. D Defect and error management Drive internal defects/errorsDrive error recovery procedures SAS system errors Installation Drive orientationCooling Air flowDrive mounting GroundingSavvio SAS Product Manual, Rev. D SAS features Interface requirementsDual port support Scsi commands supported Commands supported by Savvio SAS family driveCommand name Command code Supported Commands supported by Savvio SAS family drive Commands supported by Savvio SAS family drive Commands supported by Savvio SAS family drive Savvio inquiry data Mode Sense dataInquiry data Bytes Data hexPage DEF CHG Savvio SAS Product Manual, Rev. D Supported Feature or condition Miscellaneous operating features and conditionsMiscellaneous features Miscellaneous statusSAS physical interface Datum B Section C C Section a a Electrical description Physical characteristicsConnector requirements Pin descriptionsPin Signal name Signal type SAS pin descriptionsSAS transmitters and receivers Signal characteristics Eye masks Eye masks overview General interface characteristicsCharacteristic Units Gbps Receive eye maskJitter tolerance masks Reveive tolerance eye maskJitter Peak-toSinusoidal Frequency in kHzTransmitter signal characteristics Signal characteristica Units GbpsMaximum allowable jitter Receiver signal characteristicsSignal characteristic Units Gbps Gbps m, n Deterministic jitterqCompliant jitter test pattern Cjtpat Impedance specificationsReceiver jitter tolerance Impedance requirements Sheet 1Transmitter characteristics Impedance requirements Sheet 2Electrical TxRx connections = -5,437dB Tctf Receiver characteristics ISI loss example at 1.5 GbpsSavvio SAS Product Manual, Rev. D Presales Support Seagate Technology support servicesInternet Technical SupportWarranty Service Data Recovery Services Authorized Service CentersData Recovery Services Call Center Toll-free Direct dial Index NumericsPage SAS See also cooling

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