Seagate ST3600002SS, ST3450802SS manual Start/stop time, Format command execution time minutes

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4.2.2Format command execution time (minutes)

 

ST3600002SS

ST3450802SS

Maximum (with verify)

182

129

Maximum (without verify)

101

68

Execution time measured from receipt of the last byte of the Command Descriptor Block (CDB) to the request for a Status Byte Transfer to the Initiator (excluding connect/disconnect).

When changing sector sizes, the format times shown above may need to be increased by 30 minutes.

4.2.3

General performance characteristics

 

Sustainable disk transfer rate*:

 

Minimum

82 MB/sec

Maximum

150 MB/sec

SAS Interface maximum instantaneous transfer rate

600 MB/sec* per port

Logical block sizes

 

Default is 512-byte data blocks

 

Sector sizes variable to 512, 520, 524, and 528 kbytes.

 

Read/write consecutive sectors on a track

Yes

Flaw reallocation performance impact (for flaws reallocated at format time using

Negligible

the spare sectors per sparing zone reallocation scheme.)

 

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

4.3Start/stop time

The drive accepts the commands listed in the SAS Interface Manual less than 3 seconds after DC power has been applied.

If the drive receives a NOTIFY (ENABLE SPINUP) primitive through either port and has not received a START STOP UNIT command with the START bit equal to 0, the drive becomes ready for normal operations within 30 seconds (excluding the error recovery procedure).

If the drive receives a START STOP UNIT command with the START bit equal to 0 before receiving a NOTIFY (ENABLE SPINUP) primitive, the drive waits for a START STOP UNIT command with the START bit equal to 1. After receiving a START STOP UNIT command with the START bit equal to 1, the drive waits for a NOTIFY (ENABLE SPINUP) primitive. After receiving a NOTIFY (ENABLE SPINUP) primitive through either port, the drive becomes ready for normal operations within 30 seconds (excluding the error recovery procedure).

If the drive receives a START STOP UNIT command with the START bit and IMMED bit equal to 1 and does not receive a NOTIFY (ENABLE SPINUP) primitive within 5 seconds, the drive fails the START STOP UNIT command.

The START STOP UNIT command may be used to command the drive to stop the spindle. Stop time is 30 sec- onds (maximum) from removal of DC power.

There is no power control switch on the drive.

Cheetah NS 10K.2 SAS Product Manual, Rev. C

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Contents ST3600002SS ST3450802SS Cheetah NS 10K.2 SASPage Contents Installation Defect and error managementSeagate Technology support services Interface requirementsScope Standards Standards, compliance and reference documentsElectromagnetic compatibility Electromagnetic susceptibilityCompliance Reference documents General description Media description Standard featuresPerformance ReliabilityFormatted capacities Factory-installed optionsProgrammable drive capacity Internal drive characteristics Performance characteristicsAccess time Seek performanceGeneral performance characteristics Format command execution time minutesStart/stop time Cache operation Prefetch/multi-segmented cache controlCaching write data Prefetch operation Error rates Reliability specificationsRecoverable Errors Unrecoverable ErrorsInterface errors Reliability and servicePreventive maintenance Hot plugging the driveControlling S.M.A.R.T 4 S.M.A.R.TPerformance impact Reporting controlPredictive failures Temperature Log Page 0Dh Parameter Code DescriptionThermal monitor Drive Self Test DSTImplementation DST failure definitionShort test Function Code 001b Product warrantyExtended test Function Code 010b Shipping AC power requirements Physical/electrical specificationsDC power requirements ST3600002SS DC power requirementsGeneral DC power requirement notes ST3450802SS DC power requirementsConducted noise immunity Power sequencingCurrent profiles Typical ST3600002SS drive +5V and +12V current profiles ST3600002SS Power dissipationST3450802SS Environmental limits Temperature a. OperatingEffective altitude sea level a. Operating Relative humidityShock and vibration ShockRecommended mounting Package size Packaged/product weight Drop heightVibration a. Operating-normal Air cleanlinessAcoustics Corrosive environmentChina Restriction of Hazardous Substances RoHS Directive Physical dimensions Mechanical specificationsDrive internal defects/errors Defect and error managementDrive error recovery procedures 77.81 Background Media Scan SAS system errorsMedia Pre-Scan Deferred Auto-ReallocationIdle Read After Write Drive orientation InstallationAir flow CoolingGrounding Drive mountingInterface requirements SAS featuresDual port support Commands supported by Cheetah NS 10K.2 SAS family drives Scsi commands supportedCommands supported by Cheetah NS 10K.2 SAS family drives Commands supported by Cheetah NS 10K.2 SAS family drives Commands supported by Cheetah NS 10K.2 SAS family drives 2Mode Sense data Inquiry dataBytes Data hex Page Mode Pages 2.1 ST3600002SS Mode Sense data2.2 ST3450802SS Mode Sense data Miscellaneous features Miscellaneous operating features and conditionsSupported Feature or condition Miscellaneous statusSAS physical interface Datum B Connector requirements Physical characteristicsElectrical description Pin Signal name Signal typePin descriptions SAS pin descriptionsPower Signal characteristicsSAS transmitters and receivers Ready LED OutDifferential signals LED drive signalGeneral interface characteristics Eye masks Eye masks overviewReceive eye mask X2OP 0, 5xadditional sinusoidal jitter X1OP Signal characteristica Units 5Gb/s 0Gb/s Transmitter signal characteristicsSignal characteristic Units 5Gb/s 0Gb/s Receiver signal characteristicsMaximum allowable jitter 5Gb/s m, n 0Gb/s m, n Deterministic jitterqImpedance requirements Sheet 1 Receiver jitter tolerance5Gb/sa 0Gb/sa Sinusoidal Deterministic Total JitterhElectrical TxRx connections Impedance requirements Sheet 2= -5, 437dB Shows the zero-length test load Receiver characteristics SAS-2 Specification complianceAdditional information Presales Support Seagate Technology support servicesTechnical Support Data Recovery Services Authorized Service Centers Warranty ServiceData Recovery Services Call Center Toll-free Direct dial Index Page SAS See also cooling Page Seagate Technology LLC
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