Seagate ST3500071FC Performance characteristics, Internal drive characteristics, Access time

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4.0Performance characteristics

This section provides detailed information concerning performance-related characteristics and features of NL35 Series drives.

4.1Internal drive characteristics

	ST3500071FC	ST3400071FC
Drive capacity*	500.0	400.0	Gbytes (formatted, rounded off value)
Read/write data heads	8	8
Bytes per track	686	552	Kbytes (average, rounded off values)
Bytes per surface	84.1	67.7	Mbytes (unformatted, rounded off value)
Tracks per surface (total)	122,712	122,712	Tracks (user accessible)
Tracks per inch	120,000	120,000	TPI
Peak bits per inch	747	597	KBPI
Internal data rate	411-794	322-669	Mbits/sec (variable with zone)
Disc rotation speed	7,200	7,200	rpm (+ 0.5%)
Avg rotational latency	4.17	4.17	msec

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on op- erating environment and formatting.

4.2Seek performance characteristics

4.2.1Access time [4]

Not including controller overhead (without disconnect) [1]

	Drive level
	Read	Write
	msec
Average—Typical [2]	8.5	9.5
Single Track—Typical [2]	0.8	1.0
Full Stroke—Typical [2]	16	16.5

4.2.2Format command execution time (in minutes)

	ST3500071FC	ST3400071FC
Maximum (with verify)	375	360
Maximum (without verify)	170	155

NL35 Series FC Product Manual, Rev. D

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Contents ST3500071FC ST3400071FC NL35 Series FCPage Contents Installation Defect and error managementInterface requirements Seagate Technology support services NL35 Series FC Product Manual, Rev. D NL35 Series family disc drive List of FiguresViii NL35 Series FC Product Manual, Rev. D NL35 Series family disc drive ScopeNL35 Series FC Product Manual, Rev. D Electromagnetic susceptibility Applicable standards and reference documentationStandards Electromagnetic compatibilityEnvironmental protection Electromagnetic complianceFibre Channel Interface Manual Reference documentsNL35 Series FC Product Manual, Rev. D General description Standard features Formatted capacities Media descriptionPerformance ReliabilityProgrammable drive capacity Factory-installed accessoriesFactory-installed options User-installed accessoriesAccess time Performance characteristicsInternal drive characteristics Seek performance characteristicsGHz Generalized performance characteristicsPrefetch/multi-segmented cache control Start/stop timeCache operation Prefetch operation Caching write dataPage NL35 Series FC Product Manual, Rev. D Error rates Reliability specificationsSeek errors Reliability and serviceRecoverable Errors Unrecoverable errorsMean Time Between Failure Mtbf Preventive maintenanceHot plugging the drive Milliseconds 4 S.M.A.R.TControlling S.M.A.R.T Performance impactParameter Code Description Temperature Log page 0DhPredictive failures Thermal monitorImplementation State of the drive prior to testingDrive Self Test DST DST Failure DefinitionExtended test Function Code 010b Invoking DSTShort and extended tests Short test Function Code 001bProduct repair and return information Product warrantyAbort ShippingST3500071FC/ST3400071FC DC power requirements Physical/electrical specificationsAC power requirements DC power requirementsPower sequencing General DC power requirement notesConducted noise immunity Power dissipation Effective altitude sea level TemperatureEnvironmental limits Relative humidityShock and vibration Package size Packaged/product weight Drop heightShock Recommended mounting Vibration Air cleanlinessCorrosive environment Typical idle mode sound power ST3500071FC and ST3400071FCAcoustics Mounting configuration dimensions Mechanical specificationsNL35 Series FC Product Manual, Rev. D Drive internal defects/errors Defect and error managementDrive error recovery procedures 108.3 Background Media Scan FC-AL system errorsMedia Pre-Scan NL35 Series FC Product Manual, Rev. D Drive ID/option selection InstallationDrive orientation Air flow CoolingGrounding Drive mountingNL35 Series FC Product Manual, Rev. D Type of frame Link service FC-AL featuresFibre Channel link service frames Link services supportedFC Scsi FCP response codes Fibre Channel task management functionsFibre Channel Scsi FCP task management functions Fibre Channel task management responsesNPort login Plogi payload Fibre Channel port loginBytes Process Login Plri payload Fibre Channel port login acceptNPort Login Accept ACC payload Fibre Channel Process LoginFabric Login Flogi payload Fibre Channel Process Login AcceptProcess Login Accept ACC payload Fibre Channel fabric loginFabric Login Accept ACC payload Fibre Channel fabric accept loginOption Supported Dual port supportFibre Channel Arbitrated Loop options FC-AL options supportedSupported commands Scsi commands supportedCommand code Supported Command name Supported commands Supported commands Supported commands Supported commands Bytes Data hex Mode Sense dataInquiry data NL35 Series inquiry dataPage DEF CHG NL35 Series FC Product Manual, Rev. D Miscellaneous status Miscellaneous operating features and conditionsMiscellaneous features Supported Feature or conditionFC-AL physical interface Physical characteristicsPhysical description Part description Positions Part number Features Connector requirementsElectrical description Pin descriptions Pin Signal name Signal typeFC-SCA pin descriptions Fault LED Out PowerFC-AL transmitters and receivers Active LED Out conditions Enable port bypass signalsNormal command activity LED status Active LED Out11 SEL6 through SEL0 ID lines Motor start control signalsParallel Enclosure Services Interface ESI Motor start controlsArbitrated loop physical address Alpa values SettingHex Dec Signal characteristics Differential Pecl input characteristics LED driver signalsLED drive signal Differential Pecl output characteristicsLink rate GHz Eye diagram data valuesNL35 Series FC Product Manual, Rev. D Technical Support Seagate Technology support servicesInternet Presales SupportData Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Numerics IndexFAN Flogi Plogi Page See also cooling