Seagate ST3600002FC Performance characteristics, Internal drive characteristics, Seek performance

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4.0Performance characteristics

This section provides detailed information concerning performance-related characteristics and features of Cheetah NS 10K.2 FC drives.

4.1Internal drive characteristics

	ST3600002FC	ST3450802FC	ST3300602FC
Drive capacity*	600	450	300	Gbytes (formatted, rounded off value)
Read/write data heads	8	6	4
Tracks per inch	165,000	165,000	165,000	TPI
Peak bits per inch	1,347	1,347	1,347	kBPI
Areal density	225	225	225	Gbits/inch2
Internal data rate	1.01 to 1.84	1.01 to 1.84	1.01 to 1.84	Gbits/sec (variable with zone)
disk rotation speed	10k	10k	10k	rpm
Avg rotational latency	2.98	2.98	2.98	msec

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

4.2Seek performance

See Section 9.5, "FC-AL physical interface" on page 64 and the Fibre Channel Interface Manual (part number 77767496) for additional timing details.

4.2.1Access time

Not including controller overhead1,2(msec)

		Read	Write
Average	Typical	3.8	4.4
Single track	Typical	0.22	0.22
Full stroke	Typical	8.1	8.7

1.Typical access times are measured under nominal conditions of temperature, voltage, and horizontal orientation as measured on a representative sample of drives.

2.Access to data = access time + latency time.

Cheetah NS 10K.2 FC Product Manual, Rev. B

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Contents ST3600002FC ST3450802FC ST3300602FC Cheetah NS 10K.2 FCPage Contents Installation Seagate Technology support services Cheetah NS 10K.2 FC Product Manual, Rev. B Scope Cheetah NS 10K.2 FC Product Manual, Rev. B Standards Standards, compliance and reference documentsElectromagnetic compatibility Electromagnetic susceptibilityCompliance Ncits TR-19 Reference documentsCheetah NS 10K.2 FC Product Manual, Rev. B General description Media description Standard featuresFormatted capacities PerformanceReliability Programmable drive capacity Factory-installed optionsUser-installed accessories Internal drive characteristics Performance characteristicsAccess time Seek performanceGeneral performance characteristics Format command execution time minutesStart/stop time ST3600002FC ST3450802FC ST3300602FCCache operation Prefetch/multi-segmented cache controlPrefetch operation Caching write dataError rates Reliability specificationsRecoverable Errors Unrecoverable ErrorsSeek errors Reliability and serviceInterface errors Preventive maintenance4 S.M.A.R.T A.R.T. delay timesControlling S.M.A.R.T Performance impactDetermining rate Reporting controlPredictive failures Thermal monitorTemperature Log Page 0Dh State of the drive prior to testingDrive Self Test DST DST failure definitionShort and extended tests Invoking DSTShort test Function Code 001b Extended test Function Code 010bAbort Product warrantyCheetah NS 10K.2 FC Product Manual, Rev. B AC power requirements Physical/electrical specificationsDC power requirements DC power requirements for ST3600002FC model Gbit AmpsDC power requirements for ST3450802FC model Gbit Amps DC power requirements for ST3300602FC model Gbit Amps General DC power requirement notesCurrent profiles Power sequencingConducted noise immunity Cheetah NS 10K.2 FC Product Manual, Rev. B Cheetah NS 10K.2 FC Product Manual, Rev. B ST3600002FC Power dissipationST3450802FC ST3300602FC Relative humidity Temperature a. OperatingEnvironmental limits Shock Effective altitude sea level a. OperatingShock and vibration Recommended mounting Package size Packaged/product weight Drop heightVibration a. Operating-normal Air cleanlinessAcoustics Corrosive environmentChina Restriction of Hazardous Substances RoHS Directive Mounting configuration dimensions Mechanical specificationsCheetah NS 10K.2 FC Product Manual, Rev. B Drive error recovery procedures Defect and error managementDrive internal defects/errors 77.81 Media Pre-Scan FC-AL system errorsBackground Media Scan Idle Read After Write Deferred Auto-ReallocationDrive ID/option selection InstallationDrive orientation CoolingAir flow Drive mountingGrounding Cheetah NS 10K.2 FC Product Manual, Rev. B Fibre Channel link service frames FC-AL featuresLink services supported Type of frame Interface requirementsFC Scsi FCP response codes Function name Response code Fibre Channel task management functionsFibre Channel task management responses NPort login Plogi payload Bytes Fibre Channel port loginFibre Channel Process Login Fibre Channel port login acceptNPort Login Accept ACC payload Bytes Process Login Plri payloadFibre Channel fabric login Fibre Channel Process Login AcceptProcess Login Accept ACC payload Bytes Fabric Login Flogi payload BytesFabric Login Accept ACC payload Bytes Fibre Channel fabric accept loginFibre Channel Arbitrated Loop options Dual port supportFC-AL options supported Option SupportedSupported commands Command code Command name Scsi commands supportedVerify error recovery page 07h Cheetah NS 10K.2 FC Product Manual, Rev. B Temperature page 0Dh Cheetah NS 10K.2 FC inquiry data Bytes Data hex Mode Sense dataInquiry data Page Mode Data Header Mode Pages 00 00 05 12 8B 00 50 Supported Feature or condition Miscellaneous operating features and conditionsPhysical description Physical characteristicsFC-AL physical interface Pin descriptions Connector requirementsElectrical description FC-AL transmitters and receivers FC-SCA pin descriptions Pin Signal name Signal typeFault LED Out PowerMotor start controls Enable port bypass signalsActive LED Out 11 SEL6 through SEL0 ID lines Parallel Enclosure Services Interface ESIAlpa SEL ID Device control codes Signal characteristicsTTL input characteristics FC Differential input LED driver signalsFC Differential output Receive eye diagram Eye diagram data values Link rate GHz Cheetah NS 10K.2 FC Product Manual, Rev. B Technical Support Seagate Technology support servicesPresales Support Data Recovery Services Call Center Toll-free Direct dial Warranty ServiceData Recovery Services Authorized Service Centers Index FCP Flogi Plogi Page See also cooling Page Seagate Technology LLC